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Searches using filters for organ/system affected are limited to effects (or tumor sites) used to derive the RfD, RfC, oral slope factor, or inhalation unit risk. Other effects associated with chemicals in the IRIS database that were not used as the basis for a toxicity value are not searchable with organ/system filters. IRIS Advanced Search searches only final IRIS assessments; to look for information on draft assessments, see Quick Check: Assessments in Development. Additional information can be downloaded below by clicking on the “Export to Excel” feature.

Chemical Revision History

A basic version of this table is available.
ROW CHEMICAL NAME CASRN REVISION NUMBER REVISION DATE SECTIONS REVISED REVISION DESCRIPTION
1 Acenaphthene 83-32-9 1 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2 Acenaphthene 83-32-9 2 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
3 Acenaphthene 83-32-9 3 20190311 Mar 11,2019 Nanocancer RfD Clean Corrected a typo on the RfD POD value and also removed the adjusted 05 settings on the data entry form by request from S.Rieth.
4 Acenaphthene 83-32-9 4 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
5 Acenaphthylene 208-96-8 1 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
6 Acephate 30560-19-1 1 20160715 Jul 15,2016 Archiveed Assessment IRIS working with OPP agreed to mark this pesticide chemical archived.
7 Acephate 30560-19-1 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
8 Acetaldehyde 75-07-0 1 None None
9 Acetaldehyde 75-07-0 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
10 Acetochlor 34256-82-1 1 19910801 Aug 1,1991 I.A. Oral RfD now under review
11 Acetochlor 34256-82-1 2 19910801 Aug 1,1991 II. Carcinogenicity assessment now under review
12 Acetochlor 34256-82-1 3 19930901 Sep 1,1993 I.A. Oral RfD on-line
13 Acetochlor 34256-82-1 4 19930901 Sep 1,1993 VI.A. Oral RfD references on-line
14 Acetochlor 34256-82-1 5 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
15 Acetochlor 34256-82-1 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
16 Acetochlor 34256-82-1 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
17 Acetone 67-64-1 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
18 Acetone 67-64-1 2 19890701 Jul 1,1989 VI. Bibliography on-line
19 Acetone 67-64-1 3 19900101 Jan 1,1990 II. Carcinogen assessment now under review
20 Acetone 67-64-1 4 19900701 Jul 1,1990 II. Carcinogen assessment on-line
21 Acetone 67-64-1 5 19900701 Jul 1,1990 IV.F.1. EPA contact changed
22 Acetone 67-64-1 6 19900701 Jul 1,1990 VI.C. Carcinogen references added
23 Acetone 67-64-1 7 19901201 Dec 1,1990 I.A.2. Text edited
24 Acetone 67-64-1 8 19901201 Dec 1,1990 I.A.7. Regulatory actions updated
25 Acetone 67-64-1 9 19901201 Dec 1,1990 II.A.4. Text edited
26 Acetone 67-64-1 10 19920101 Jan 1,1992 IV. Regulatory actions updated
27 Acetone 67-64-1 11 19930801 Aug 1,1993 I.A. Oral RfD noted as pending change
28 Acetone 67-64-1 12 19930801 Aug 1,1993 I.A.6. Work group review date added
29 Acetone 67-64-1 13 19950801 Aug 1,1995 I.A., I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Piot Program replaced the workgroup functions beginning in September, 1995.
30 Acetone 67-64-1 14 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
31 Acetone 67-64-1 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
32 Acetonitrile 75-05-8 1 19880630 Jun 30,1988 I.A.2. Principal study clarified
33 Acetonitrile 75-05-8 2 19890701 Jul 1,1989 I.B. Inhalation RfD now under review
34 Acetonitrile 75-05-8 3 19890801 Aug 1,1989 I.A. Oral RfD summary noted as pending change
35 Acetonitrile 75-05-8 4 19900201 Feb 1,1990 I.A. Hazelton Labs, 1983 corrected to NTP, 1983
36 Acetonitrile 75-05-8 5 19900201 Feb 1,1990 I.A.2. Text clarified (paragraph 4)
37 Acetonitrile 75-05-8 6 19900201 Feb 1,1990 VI. Bibliography on-line
38 Acetonitrile 75-05-8 7 19900301 Mar 1,1990 VI.A. NTP, 1983 - strain of rats and mice clarified
39 Acetonitrile 75-05-8 8 19920101 Jan 1,1992 I.A.7. Secondary contact changed
40 Acetonitrile 75-05-8 9 19920101 Jan 1,1992 IV. Regulatory actions updated
41 Acetonitrile 75-05-8 10 19960201 Feb 1,1996 I.A.7. Secondary contact deleted
42 Acetonitrile 75-05-8 11 19990303 Mar 3,1999 I., II., VI. RfD withdrawn, discussion added; new RfC and cancer assessment
43 Acetonitrile 75-05-8 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
44 Acetophenone 98-86-2 1 19880822 Aug 22,1988 I.A. oral RfD summary on-line
45 Acetophenone 98-86-2 2 19890101 Jan 1,1989 I.A.7. Contacts phone numbers corrected
46 Acetophenone 98-86-2 3 19890801 Aug 1,1989 VI. Bibliography on-line
47 Acetophenone 98-86-2 4 19901201 Dec 1,1990 II. Carcinogen assessment now under review
48 Acetophenone 98-86-2 5 19910201 Feb 1,1991 II. Carcinogenicity assessment on-line
49 Acetophenone 98-86-2 6 19910201 Feb 1,1991 VI.C. Carcinogen references added
50 Acetophenone 98-86-2 7 19910901 Sep 1,1991 I.B. Inhalation RfC now under review
51 Acetophenone 98-86-2 8 19920101 Jan 1,1992 I.A.7. Secondary contact changed
52 Acetophenone 98-86-2 9 19920101 Jan 1,1992 IV. Regulatory Action section on-line
53 Acetophenone 98-86-2 10 19920801 Aug 1,1992 I.B. Work group review meeting date added
54 Acetophenone 98-86-2 11 19950801 Aug 1,1995 I.B. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
55 Acetophenone 98-86-2 12 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Office for this information.
56 Acetophenone 98-86-2 13 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
57 Acetyl chloride 75-36-5 1 19910301 Mar 1,1991 II. Carcinogenicity assessment on-line
58 Acetyl chloride 75-36-5 2 19910301 Mar 1,1991 VI. Bibliography on-line
59 Acetyl chloride 75-36-5 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
60 Acetyl chloride 75-36-5 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
61 Acetyl chloride 75-36-5 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
62 Acifluorfen, sodium 62476-59-9 1 19881201 Dec 1,1988 I.A.2. Text revised
63 Acifluorfen, sodium 62476-59-9 2 19891101 Nov 1,1989 VI. Bibliography on-line
64 Acifluorfen, sodium 62476-59-9 3 19901001 Oct 1,1990 III.A. Health Advisory on-line
65 Acifluorfen, sodium 62476-59-9 4 19901001 Oct 1,1990 VI.D. Health Advisory references added
66 Acifluorfen, sodium 62476-59-9 5 19931101 Nov 1,1993 II. Work group review date added
67 Acifluorfen, sodium 62476-59-9 6 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
68 Acifluorfen, sodium 62476-59-9 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
69 Acrolein 107-02-8 1 19880907 Sep 7,1988 II. Carcinogen summary on-line
70 Acrolein 107-02-8 2 19890401 Apr 1,1989 V. Supplementary data on-line
71 Acrolein 107-02-8 3 19890701 Jul 1,1989 I.B. Inhalation RfD now under review
72 Acrolein 107-02-8 4 19900301 Mar 1,1990 II.A.4. Citations clarified (3rd paragraph)
73 Acrolein 107-02-8 5 19900301 Mar 1,1990 VI. Bibliography on-line
74 Acrolein 107-02-8 6 19900501 May 1,1990 VI.C. Hemminki et al., 1980 citation corrected
75 Acrolein 107-02-8 7 19911001 Oct 1,1991 I.B. Inhalation RfC summary on-line
76 Acrolein 107-02-8 8 19911001 Oct 1,1991 I.B. Inhalation RfC references added
77 Acrolein 107-02-8 9 19920101 Jan 1,1992 IV. Regulatory Action section on-line
78 Acrolein 107-02-8 10 19930701 Jul 1,1993 I.B.1. LOAEL (ADJ) corrected
79 Acrolein 107-02-8 11 19940201 Feb 1,1994 II.D.3. Secondary contact's phone number changed
80 Acrolein 107-02-8 12 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
81 Acrolein 107-02-8 13 20190311 Mar 11,2019 Nanocancer RfD Clean Removed Adjusted and 05 from the RfD table, per request from S. Rieth.
82 Acrolein 107-02-8 14 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
83 Acrylamide 79-06-1 1 19880926 Sep 26,1988 I.A. Oral RfD summary on-line
84 Acrylamide 79-06-1 2 19880926 Sep 26,1988 II. Carcionogen summary on-line
85 Acrylamide 79-06-1 3 19890601 Jun 1,1989 II.D.2. Work group review date added
86 Acrylamide 79-06-1 4 19900901 Sep 1,1990 II. Text edited
87 Acrylamide 79-06-1 5 19900901 Sep 1,1990 III.A. Health Advisory on-line
88 Acrylamide 79-06-1 6 19900901 Sep 1,1990 VI. Bibliography on-line
89 Acrylamide 79-06-1 7 19901001 Oct 1,1990 I.B. Not verified data inadequate
90 Acrylamide 79-06-1 8 19901101 Nov 1,1990 I.B. Inhalation RfC message on-line
91 Acrylamide 79-06-1 9 19901101 Nov 1,1990 VI.B. Inhalation RfC references on-line
92 Acrylamide 79-06-1 10 19910101 Jan 1,1991 II. Text edited
93 Acrylamide 79-06-1 11 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
94 Acrylamide 79-06-1 12 19910301 Mar 1,1991 I.A.5. Database corrected to medium text revised
95 Acrylamide 79-06-1 13 19910801 Aug 1,1991 VI.C. References clarified
96 Acrylamide 79-06-1 14 19920101 Jan 1,1992 IV. Regulatory Action section on-line
97 Acrylamide 79-06-1 15 19930701 Jul 1,1993 II.D.1. Source document and review statement clarified
98 Acrylamide 79-06-1 16 19950801 Aug 1,1995 II.D.2 EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
99 Acrylamide 79-06-1 17 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
100 Acrylamide 79-06-1 18 20010222 Feb 22,2001 I., II. This chemical is being reassessed under the IRIS Program.
101 Acrylamide 79-06-1 19 20100316 Mar 16,2010 I., II., VI. RfD and cancer assessment sections updated, RfC assessment added.
102 Acrylamide 79-06-1 20 20110309 Mar 9,2011 NA Corrections that were made to Table 3-2 of the Toxicological Review of Acrylamide: 1. Some of the superscripts were missing or wrong. 2. The species "hamster" should be "humans". 3. Citaion "j" Fennell et al 2005 should be Fennell et al 2006 4. All citations for Hartmann et al., 2008, 224480 should be Kopp and Dekant, 2009, 224532
103 Acrylamide 79-06-1 21 20180710 Jul 10,2018 Key Values Table A footnote was added for ADAF.
104 Acrylamide 79-06-1 22 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
105 Acrylic acid 79-10-7 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
106 Acrylic acid 79-10-7 2 19870331 Mar 31,1987 I.A.6. Documentation corrected
107 Acrylic acid 79-10-7 3 19880301 Mar 1,1988 I.A.2. Paragraph 3 deleted
108 Acrylic acid 79-10-7 4 19890801 Aug 1,1989 VI. Bibliography on-line
109 Acrylic acid 79-10-7 5 19900901 Sep 1,1990 I.B. Inhalation RfC now under review
110 Acrylic acid 79-10-7 6 19901001 Oct 1,1990 I.B. Inhalation RfC summary on-line
111 Acrylic acid 79-10-7 7 19901001 Oct 1,1990 VI.B. Inhalation RfC references added
112 Acrylic acid 79-10-7 8 19920101 Jan 1,1992 I.A.7. Primary contact changed
113 Acrylic acid 79-10-7 9 19920101 Jan 1,1992 IV. Regulatory actions updated
114 Acrylic acid 79-10-7 10 19940301 Mar 1,1994 I.A. Withdrawn; new oral RfD verified (in preparation)
115 Acrylic acid 79-10-7 11 19940301 Mar 1,1994 I.B. Withdrawn; new inhalation RfC verified (in preparation)
116 Acrylic acid 79-10-7 12 19940301 Mar 1,1994 VI. Bibliography withdrawn
117 Acrylic acid 79-10-7 13 19940401 Apr 1,1994 I.A. Oral RfD summary replaced; new RfD
118 Acrylic acid 79-10-7 14 19940401 Apr 1,1994 I.B. Inhalation RfC summary replaced; new RfC
119 Acrylic acid 79-10-7 15 19940401 Apr 1,1994 VI.A. Oral RfD references replaced
120 Acrylic acid 79-10-7 16 19940401 Apr 1,1994 VI.B. Inhalation RfC references replaced
121 Acrylic acid 79-10-7 17 19940501 May 1,1994 I.A.2. Note moved from Add. Com. Sec. to Prin. Sup. Stud. Sec
122 Acrylic acid 79-10-7 18 19940501 May 1,1994 I.B.1. Note moved from Add. Com. Sec. to Prin. Sup. Stud. Sec
123 Acrylic acid 79-10-7 19 19950501 May 1,1995 I.B.4. Text edited (9th paragraph)
124 Acrylic acid 79-10-7 20 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
125 Acrylic acid 79-10-7 21 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
126 Acrylonitrile 107-13-1 1 19880301 Mar 1,1988 II.B.4. Confidence statement revised
127 Acrylonitrile 107-13-1 2 19890201 Feb 1,1989 II.D.3 Secondary contact's phone number corrected
128 Acrylonitrile 107-13-1 3 19890701 Jul 1,1989 II. Citations for Quast et al. clarified
129 Acrylonitrile 107-13-1 4 19890701 Jul 1,1989 VI. Bibliography on-line
130 Acrylonitrile 107-13-1 5 19900601 Jun 1,1990 IV.A.1. Area code for EPA contact corrected
131 Acrylonitrile 107-13-1 6 19900601 Jun 1,1990 IV.F.1. EPA contact changed
132 Acrylonitrile 107-13-1 7 19910101 Jan 1,1991 I.B. Inhalation RfC now under review
133 Acrylonitrile 107-13-1 8 19910101 Jan 1,1991 II. Text edited
134 Acrylonitrile 107-13-1 9 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
135 Acrylonitrile 107-13-1 10 19911101 Nov 1,1991 I.B. Inhalation RfC summary on-line
136 Acrylonitrile 107-13-1 11 19911101 Nov 1,1991 VI.B. Inhalation RfC references added
137 Acrylonitrile 107-13-1 12 19911201 Dec 1,1991 I.B. Text edited
138 Acrylonitrile 107-13-1 13 19920101 Jan 1,1992 IV. Regulatory actions updated
139 Acrylonitrile 107-13-1 14 19920401 Apr 1,1992 IV.A.1. CAA regulatory action withdrawn
140 Acrylonitrile 107-13-1 15 19920801 Aug 1,1992 I.A. Oral RfD now under review
141 Acrylonitrile 107-13-1 16 19930701 Jul 1,1993 I.A. Work group review date added
142 Acrylonitrile 107-13-1 17 19950801 Aug 1,1995 I.A. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by the Program replaced the workgroup functions beginning in September, 1995.
143 Acrylonitrile 107-13-1 18 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
144 Acrylonitrile 107-13-1 19 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
145 Adiponitrile 111-69-3 1 19910201 Feb 1,1991 II. Carcinogenicity assessment on-line
146 Adiponitrile 111-69-3 2 19910201 Feb 1,1991 VI. Bibliography on-line
147 Adiponitrile 111-69-3 3 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
148 Adiponitrile 111-69-3 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
149 Alachlor 15972-60-8 1 19880301 Mar 1,1988 III.A. Health Advisory added
150 Alachlor 15972-60-8 2 19881201 Dec 1,1988 I.A.4. Core graded added to studies 1, 3 and 4
151 Alachlor 15972-60-8 3 19891101 Nov 1,1989 VI. Bibliography on-line
152 Alachlor 15972-60-8 4 19920101 Jan 1,1992 IV. Regulatory actions updated
153 Alachlor 15972-60-8 5 19930901 Sep 1,1993 I.A. Oral RfD revised; same study and number
154 Alachlor 15972-60-8 6 19931101 Nov 1,1993 III.A.2. Ten-day Health Advisory corrected
155 Alachlor 15972-60-8 7 19931101 Nov 1,1993 III.A.9. Documentation revised
156 Alachlor 15972-60-8 8 19931101 Nov 1,1993 IV.B.2. Discussion corrected
157 Alachlor 15972-60-8 9 19931101 Nov 1,1993 VI. Health Advisory references revised
158 Alachlor 15972-60-8 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions,and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
159 Alachlor 15972-60-8 11 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
160 Alar 1596-84-5 1 19880822 Aug 22,1988 I.A.4. Study 4 text revised
161 Alar 1596-84-5 2 19910201 Feb 1,1991 I.B. Incorrect message removed
162 Alar 1596-84-5 3 19910701 Jul 1,1991 I.A. Principal study clarified
163 Alar 1596-84-5 4 19910701 Jul 1,1991 I.A.4. Citations clarified
164 Alar 1596-84-5 5 19910701 Jul 1,1991 VI. Bibliography on-line
165 Alar 1596-84-5 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
166 Alar 1596-84-5 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
167 Alar 1596-84-5 8 20180927 Sep 27,2018 Noncancer Critical Updated the system from none to other so it would show up in the advanced search.
168 Alar 1596-84-5 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
169 Aldicarb 116-06-3 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
170 Aldicarb 116-06-3 2 19880301 Mar 1,1988 I.A.7. Primary contact changed
171 Aldicarb 116-06-3 3 19880301 Mar 1,1988 III.A. Health Advisory added
172 Aldicarb 116-06-3 4 19880822 Aug 22,1988 II. Carcinogen summary on-line
173 Aldicarb 116-06-3 5 19890501 May 1,1989 I.A.5. Confidence statement revised
174 Aldicarb 116-06-3 6 19890501 May 1,1989 I.A.7. Secondary contact changed
175 Aldicarb 116-06-3 7 19890601 Jun 1,1989 II.D.2. Work group review date added
176 Aldicarb 116-06-3 8 19890801 Aug 1,1989 VI. Bibliography on-line
177 Aldicarb 116-06-3 9 19900701 Jul 1,1990 I.A. Oral RfD summary noted as pending change
178 Aldicarb 116-06-3 10 19900801 Aug 1,1990 I.A. Withdrawn; new Oral RfD verified (in preparation)
179 Aldicarb 116-06-3 11 19900801 Aug 1,1990 III.A.5. DWEL & Lifetime HA withdrawn (RfD withdrawn)
180 Aldicarb 116-06-3 12 19900801 Aug 1,1990 VI.A. Oral RfD references withdrawn
181 Aldicarb 116-06-3 13 19910301 Mar 1,1991 II.D.3 Secondary contact changed
182 Aldicarb 116-06-3 14 19910701 Jul 1,1991 I.A. Oral RfD summary replaced; RfD changed
183 Aldicarb 116-06-3 15 19910701 Jul 1,1991 III.A.5. DWEL and Lifetime HA replaced
184 Aldicarb 116-06-3 16 19910701 Jul 1,1991 VI.A. Oral RfD references replaced
185 Aldicarb 116-06-3 17 19910701 Jul 1,1991 III.A. Section III.A.1-4 replaced
186 Aldicarb 116-06-3 18 19910801 Aug 1,1991 I.A. General edit
187 Aldicarb 116-06-3 19 19920101 Jan 1,1992 IV. Regulatory actions updated
188 Aldicarb 116-06-3 20 19921001 Oct 1,1992 I.A. Oral RfD summary noted as pending change
189 Aldicarb 116-06-3 21 19921001 Oct 1,1992 I.A.6. Work group review date added
190 Aldicarb 116-06-3 22 19921201 Dec 1,1992 I.A.6. Work group review date added
191 Aldicarb 116-06-3 23 19931101 Nov 1,1993 I.A. Oral RfD summary replaced; new RfD
192 Aldicarb 116-06-3 24 19931101 Nov 1,1993 III.A. Health Advisory withdrawn
193 Aldicarb 116-06-3 25 19931101 Nov 1,1993 VI.A. Oral RfD references replaced
194 Aldicarb 116-06-3 26 19931101 Nov 1,1993 VI.D. Health Advisory references withdrawn
195 Aldicarb 116-06-3 27 19940101 Jan 1,1994 III.A. Message revised to include contact's name and number
196 Aldicarb 116-06-3 28 19950801 Aug 1,1995 II.D.2. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS reveiw. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
197 Aldicarb 116-06-3 29 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or befroe April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
198 Aldicarb 116-06-3 30 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
199 Aldicarb sulfone 1646-88-4 1 19880926 Sep 26,1988 I.A. Oral RfD summary on-line
200 Aldicarb sulfone 1646-88-4 2 19890201 Feb 1,1989 I.A.7. Secondary contact's phone number corrected
201 Aldicarb sulfone 1646-88-4 3 19890801 Aug 1,1989 I.A. Citations clarified
202 Aldicarb sulfone 1646-88-4 4 19890801 Aug 1,1989 VI. Bibliography on-line
203 Aldicarb sulfone 1646-88-4 5 19900701 Jul 1,1990 I.A. Withdrawn; new RfD verified (in preparation)
204 Aldicarb sulfone 1646-88-4 6 19900701 Jul 1,1990 VI. Bibliography withdrawn
205 Aldicarb sulfone 1646-88-4 7 19900901 Sep 1,1990 I.A. Oral RfD summary replaced; RfD changed
206 Aldicarb sulfone 1646-88-4 8 19900901 Sep 1,1990 VI. Bibliography replaced
207 Aldicarb sulfone 1646-88-4 9 19900501 May 1,1990 I.A. Oral RfD withdrawn pending additional review
208 Aldicarb sulfone 1646-88-4 10 19910501 May 1,1991 VI. Bibliography withdrawn
209 Aldicarb sulfone 1646-88-4 11 19920101 Jan 1,1992 IV. Regulatory Action section on-line
210 Aldicarb sulfone 1646-88-4 12 19921001 Oct 1,1992 I.A. Work group review date added
211 Aldicarb sulfone 1646-88-4 13 19930401 Apr 1,1993 I.A. Oral RfD references replaced
212 Aldicarb sulfone 1646-88-4 14 19931101 Nov 1,1993 I.A. Oral RfD summary replaced; new RfD
213 Aldicarb sulfone 1646-88-4 15 19931101 Nov 1,1993 VI.A. Oral RfD references replaced
214 Aldicarb sulfone 1646-88-4 16 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
215 Aldicarb sulfone 1646-88-4 17 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
216 Aldrin 309-00-2 1 19870930 Sep 30,1987 II. Carcinogenicity section added
217 Aldrin 309-00-2 2 19880301 Mar 1,1988 II.B.4 Confidence statement revised
218 Aldrin 309-00-2 3 19881201 Dec 1,1988 II.B.4. Corrected slope factor in text
219 Aldrin 309-00-2 4 19890901 Sep 1,1989 II.A.2. Dirtaglia reference changed to Ditraglia et al.
220 Aldrin 309-00-2 5 19890901 Sep 1,1989 II.A.3. Deichmann reference changed to Deichmann et al.
221 Aldrin 309-00-2 6 19890901 Sep 1,1989 II.B.3. Body weight for mice corrected to kg
222 Aldrin 309-00-2 7 19890901 Sep 1,1989 VI. Bibliography on-line
223 Aldrin 309-00-2 8 19910101 Jan 1,1991 II. Text edited
224 Aldrin 309-00-2 9 19910101 Jan 1,1991 II.C.1 Inhalation slope factor removed (global change)
225 Aldrin 309-00-2 10 19920101 Jan 1,1992 I.A.7. Secondary contact changed
226 Aldrin 309-00-2 11 19920101 Jan 1,1992 IV. Regulatory actions updated
227 Aldrin 309-00-2 12 19930701 Jul 1,1993 II.D.3. Secondary contact's phone number changed
228 Aldrin 309-00-2 13 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementay data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Praogram Offices for this information.
229 Aldrin 309-00-2 14 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
230 Aldrin 309-00-2 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
231 Ally 74223-64-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
232 Allyl alcohol 107-18-6 1 19870930 Sep 30,1987 V. Supplementary Dta section added
233 Allyl alcohol 107-18-6 2 19880301 Mar 1,1988 I.A.1. Dose conversion clarified
234 Allyl alcohol 107-18-6 3 19880301 Mar 1,1988 I.A.2. Text deleted
235 Allyl alcohol 107-18-6 4 19880301 Mar 1,1988 I.A.4. Text clarified
236 Allyl alcohol 107-18-6 5 19880301 Mar 1,1988 I.A.5. Confidence levels revised
237 Allyl alcohol 107-18-6 6 19890801 Aug 1,1989 I.A.4. Citations clarified
238 Allyl alcohol 107-18-6 7 19890801 Aug 1,1989 VI. Bibliography on-line
239 Allyl alcohol 107-18-6 8 19920101 Jan 1,1992 I.A.7. Primary contact changed
240 Allyl alcohol 107-18-6 9 19920101 Jan 1,1992 IV. Regulatory action updated
241 Allyl alcohol 107-18-6 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS useres were directed to the appropriate EPA Program Offices for this information.
242 Allyl alcohol 107-18-6 11 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
243 Allyl chloride 107-05-1 1 19900901 Sep 1,1990 II. Carcinogen assessment on-line
244 Allyl chloride 107-05-1 2 19900901 Sep 1,1990 VI. Bibliography on-line
245 Allyl chloride 107-05-1 3 19910101 Jan 1,1991 I.B. Inhalation RfC now under review
246 Allyl chloride 107-05-1 4 19910801 Aug 1,1991 VI.C. Eder et al. 1980 reference volume corrected
247 Allyl chloride 107-05-1 5 19911201 Dec 1,1991 I.B. Inhalation RfC on-line
248 Allyl chloride 107-05-1 6 19911201 Dec 1,1991 VI.B. Inhalation RfC references added
249 Allyl chloride 107-05-1 7 19920101 Jan 1,1992 IV. Regulatory Action section on-line
250 Allyl chloride 107-05-1 8 19950501 May 1,1995 I.B. Principal study author name corrected
251 Allyl chloride 107-05-1 9 19950501 May 1,1995 VI.B. Author name corrected
252 Allyl chloride 107-05-1 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
253 Allyl chloride 107-05-1 11 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
254 Aluminum phosphide 20859-73-8 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
255 Aluminum phosphide 20859-73-8 2 19880301 Mar 1,1988 I.A.6. Documentation revised
256 Aluminum phosphide 20859-73-8 3 19890801 Aug 1,1989 VI. Bibliography on-line
257 Aluminum phosphide 20859-73-8 4 19920101 Jan 1,1992 I.A.7. Primary contact changed
258 Aluminum phosphide 20859-73-8 5 19920101 Jan 1,1992 IV. Regulatory actions updated
259 Aluminum phosphide 20859-73-8 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
260 Aluminum phosphide 20859-73-8 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
261 Amdro 67485-29-4 1 19891101 Nov 1,1989 VI. Bibliography on-line
262 Amdro 67485-29-4 2 19920101 Jan 1,1992 IV. Regulatory Action section on-line
263 Amdro 67485-29-4 3 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were direcetd to the appropriate EPA Program Office for this information.
264 Amdro 67485-29-4 4 20160715 Jul 15,2016 Archived Assessment IRIS working with OPP agreed to mark this pesticide chemical archived.
265 Amdro 67485-29-4 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
266 Ametryn 834-12-8 1 19880301 Mar 1,1988 I.A.4. Text clarified
267 Ametryn 834-12-8 2 19891101 Nov 1,1989 I.A.4. Species corrected in study 4
268 Ametryn 834-12-8 3 19891101 Nov 1,1989 VI. Bibliography on-line
269 Ametryn 834-12-8 4 19901001 Oct 1,1990 III.A. Health Advisory on-line
270 Ametryn 834-12-8 5 19901001 Oct 1,1990 VI.D. Health Advisory references added
271 Ametryn 834-12-8 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
272 Ametryn 834-12-8 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
273 Ametryn 834-12-8 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
274 4-Aminopyridine 504-24-5 1 19891201 Dec 1,1989 II. Carcinogen summary on-line
275 4-Aminopyridine 504-24-5 2 19891201 Dec 1,1989 VI. Bibliography on-line
276 4-Aminopyridine 504-24-5 3 19911201 Dec 1,1991 II.A.1. Basis statement replaced
277 4-Aminopyridine 504-24-5 4 19911201 Dec 1,1991 II.A.4. Text replaced
278 4-Aminopyridine 504-24-5 5 19911201 Dec 1,1991 II.D.2. Review date of 07/25/1991 added
279 4-Aminopyridine 504-24-5 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
280 4-Aminopyridine 504-24-5 7 19930701 Jul 1,1993 II.D.1. Source document year corrected
281 4-Aminopyridine 504-24-5 8 19950801 Aug 1,1995 II.D.2. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
282 4-Aminopyridine 504-24-5 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory ACtions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
283 4-Aminopyridine 504-24-5 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
284 Amitraz 33089-61-1 1 19880822 Aug 22,1988 I.A. Oral RfD summary on-line
285 Amitraz 33089-61-1 2 19881201 Dec 1,1988 I.A.4. Core grades corrected
286 Amitraz 33089-61-1 3 19891001 Oct 1,1989 VI. Bibliography on-line
287 Amitraz 33089-61-1 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
288 Amitraz 33089-61-1 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EP Program Offices for this information.
289 Amitraz 33089-61-1 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
290 Ammonia 7664-41-7 1 19910501 May 1,1991 I.B. Inhalation RfC summary on-line
291 Ammonia 7664-41-7 2 19910501 May 1,1991 VI. Bibliography on-line
292 Ammonia 7664-41-7 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
293 Ammonia 7664-41-7 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this inforamation.
294 Ammonia 7664-41-7 5 20160920 Sep 20,2016 I.B. Update to the noncancer inhalation RfC key values.
295 Ammonia 7664-41-7 6 20180628 Jun 28,2018 IRIS Summary Renamed the IRIS Summary to Executive summary to match the attachment.
296 Ammonia 7664-41-7 7 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
297 Ammonium acetate 631-61-8 1 19910301 Mar 1,1991 II. Carcinogenicity assessment on-line
298 Ammonium acetate 631-61-8 2 19910301 Mar 1,1991 VI. Bibliography on-line
299 Ammonium acetate 631-61-8 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
300 Ammonium acetate 631-61-8 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. Iris users were directed to the appropriate EPA Program Offices for this information.
301 Ammonium acetate 631-61-8 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
302 Ammonium methacrylate 16325-47-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
303 Ammonium sulfamate 7773-06-0 1 19880301 Mar 1,1988 I.A.1. Critical effect identified, LOAEL specified
304 Ammonium sulfamate 7773-06-0 2 19880301 Mar 1,1988 I.A.2. Principal study citation corrected
305 Ammonium sulfamate 7773-06-0 3 19880301 Mar 1,1988 I.A.2. Text revised
306 Ammonium sulfamate 7773-06-0 4 19881201 Dec 1,1988 I.A. Withdrawn; new RfD verified (in preparation)
307 Ammonium sulfamate 7773-06-0 5 19890101 Jan 1,1989 I.A. Oral RfD summary replaced; RfD changed
308 Ammonium sulfamate 7773-06-0 6 19910301 Mar 1,1991 I.A.4. Citations added
309 Ammonium sulfamate 7773-06-0 7 19910301 Mar 1,1991 III.A. Health Advisory on-line
310 Ammonium sulfamate 7773-06-0 8 19910301 Mar 1,1991 VI. Bibliography on-line
311 Ammonium sulfamate 7773-06-0 9 19910601 Jun 1,1991 III.A.4. 70-kg 'child' corrected to 70-kg adult in assumptions
312 Ammonium sulfamate 7773-06-0 10 19920101 Jan 1,1992 IV. Regulatory actions updated
313 Ammonium sulfamate 7773-06-0 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program offices for this information.
314 Ammonium sulfamate 7773-06-0 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
315 Aniline 62-53-3 1 19880907 Sep 7,1988 II. Carcinogen summary on-line
316 Aniline 62-53-3 2 19890401 Apr 1,1989 V. Supplementary data on-line
317 Aniline 62-53-3 3 19890601 Jun 1,1989 II.D.2. Work group review date added
318 Aniline 62-53-3 4 19890801 Aug 1,1989 VI. Bibliography on-line
319 Aniline 62-53-3 5 19901001 Oct 1,1990 I.B. Inhalation RfC now under review
320 Aniline 62-53-3 6 19901101 Nov 1,1990 I.B. Inhalation RfC summary on-line
321 Aniline 62-53-3 7 19901101 Nov 1,1990 VI.B. Inhalation RfC references added
322 Aniline 62-53-3 8 19911101 Nov 1,1991 I.B.6. Source Doc. & Other EPA Documentation corrected
323 Aniline 62-53-3 9 19920101 Jan 1,1992 IV. Regulatory Action section on-line
324 Aniline 62-53-3 10 19931201 Dec 1,1993 I.B.1. Critical effect clarified in study 1
325 Aniline 62-53-3 11 19940201 Feb 1,1994 II.D.3. Secondary contact's phone number changed
326 Aniline 62-53-3 12 19950801 Aug 1,1995 II.D.2. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
327 Aniline 62-53-3 13 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementarry Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
328 Aniline 62-53-3 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
329 ortho-Anisidine 90-04-0 1 19910901 Sep 1,1991 I.B. Inhalation RfC now under review
330 ortho-Anisidine 90-04-0 2 19911001 Oct 1,1991 I.B. Inhalation RfC message on-line
331 ortho-Anisidine 90-04-0 3 19911001 Oct 1,1991 VI. Bibliography on-line
332 ortho-Anisidine 90-04-0 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were direcetd to the appropriate EPA Program Offices for this information.
333 ortho-Anisidine 90-04-0 5 20181219 Dec 19,2018 Archived Chemical IRIS Program requested that we archive assessments with no values.
334 ortho-Anisidine 90-04-0 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
335 Anthracene 120-12-7 1 19900901 Sep 1,1990 I.A. Oral RfD summary on-line
336 Anthracene 120-12-7 2 19900901 Sep 1,1990 VI. Bibliography on-line
337 Anthracene 120-12-7 3 19910101 Jan 1,1991 II. Carcinogen assessment on-line
338 Anthracene 120-12-7 4 19910101 Jan 1,1991 VI.C. Carcinogen assessment references added
339 Anthracene 120-12-7 5 19910701 Jul 1,1991 I.A.7. Primary and secondary contacts changed
340 Anthracene 120-12-7 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
341 Anthracene 120-12-7 7 19930701 Jul 1,1993 I.A.6. Source Document and Other EPA documentation clarified
342 Anthracene 120-12-7 8 19940901 Sep 1,1994 I.B. Inhalation RfD now under review
343 Anthracene 120-12-7 9 19950801 Aug 1,1995 I.B. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS reveiw. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
344 Anthracene 120-12-7 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplmentary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
345 Anthracene 120-12-7 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
346 Antimony 7440-36-0 1 19890801 Aug 1,1989 I.A. Gross et al., (1955) citation clarified
347 Antimony 7440-36-0 2 19890801 Aug 1,1989 VI. Bibliography on-line
348 Antimony 7440-36-0 3 19910201 Feb 1,1991 I.A.1. Conversion factor revised
349 Antimony 7440-36-0 4 19910201 Feb 1,1991 I.A.2. Text added
350 Antimony 7440-36-0 5 19910201 Feb 1,1991 I.A.4. Paragraph 2 added
351 Antimony 7440-36-0 6 19910201 Feb 1,1991 VI.A. Dunn, 1928 and Monier-Williams, 1934 added
352 Antimony 7440-36-0 7 19920101 Jan 1,1992 I.A.7. Primary contact changed
353 Antimony 7440-36-0 8 19920101 Jan 1,1992 IV. Regulatory actions updated
354 Antimony 7440-36-0 9 19970401 Apr 1,1997 III>, IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directeed to the appropriate EPA Program Offices for this information.
355 Antimony 7440-36-0 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
356 Antimony trioxide 1309-64-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
357 Apollo 74115-24-5 1 19880301 Mar 1,1988 I.A.3. Text revised
358 Apollo 74115-24-5 2 19880301 Mar 1,1988 I.A.4. Data gaps revised
359 Apollo 74115-24-5 3 19880301 Mar 1,1988 I.A.4. Study description added
360 Apollo 74115-24-5 4 19880301 Mar 1,1988 I.A.4. Data added to 'Other Data Reviewed'
361 Apollo 74115-24-5 5 19880301 Mar 1,1988 I.A.5. Confidence levels revised
362 Apollo 74115-24-5 6 19880301 Mar 1,1988 I.A.6. Dates corrected
363 Apollo 74115-24-5 7 19891101 Nov 1,1989 I.A. Principal study year corrected
364 Apollo 74115-24-5 8 19891101 Nov 1,1989 VI. Bibliography on-line
365 Apollo 74115-24-5 9 19900301 Mar 1,1990 II. Carcinogen assessment now under review
366 Apollo 74115-24-5 10 19910601 Jun 1,1991 II. Carcinogenicity assessment on-line
367 Apollo 74115-24-5 11 19910601 Jun 1,1991 VI.C. Carcinogenicity references added
368 Apollo 74115-24-5 12 19931001 Oct 1,1993 II.D.3. Primary contact changed; secondary's phone no. changed.
369 Apollo 74115-24-5 13 19950801 Aug 1,1995 I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
370 Apollo 74115-24-5 14 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
371 Apollo 74115-24-5 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
372 Aramite 140-57-8 1 19910601 Jun 1,1991 II. Carcinogenicity assessment on-line
373 Aramite 140-57-8 2 19910601 Jun 1,1991 VI. Bibliography on-line
374 Aramite 140-57-8 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
375 Aramite 140-57-8 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
376 Aramite 140-57-8 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
377 Aroclor 1016 12674-11-2 1 19910801 Aug 1,1991 I.A. Oral RfD now under review
378 Aroclor 1016 12674-11-2 2 19920801 Aug 1,1992 I.A. Work group review dates added
379 Aroclor 1016 12674-11-2 3 19921001 Oct 1,1992 I.A. Work group review date added
380 Aroclor 1016 12674-11-2 4 19921201 Dec 1,1992 I.A. Work group reveiw dates added
381 Aroclor 1016 12674-11-2 5 19930101 Jan 1,1993 I.A. Oral RfD assessment on-line
382 Aroclor 1016 12674-11-2 6 19930101 Jan 1,1993 VI.A. Oral RfD references on-line
383 Aroclor 1016 12674-11-2 7 19930201 Feb 1,1993 VI.A. Oral RfD references corrected
384 Aroclor 1016 12674-11-2 8 19930301 Mar 1,1993 I.A.6. Work group review date added
385 Aroclor 1016 12674-11-2 9 19930901 Sep 1,1993 I.A. Oral RfD noted as going to be externally peer reviewed
386 Aroclor 1016 12674-11-2 10 19931101 Nov 1,1993 I.A. Note revised
387 Aroclor 1016 12674-11-2 11 19940501 May 1,1994 I.A. Peer review note removed; peer review May 24-25
388 Aroclor 1016 12674-11-2 12 19950801 Aug 1,1995 I.A.6., I.A. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
389 Aroclor 1016 12674-11-2 13 19961101 Nov 1,1996 I.A.7. Primary contact's office changed
390 Aroclor 1016 12674-11-2 14 19970401 Apr 1,1997 III., IV., V. Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
391 Aroclor 1016 12674-11-2 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
392 Aroclor 1248 12672-29-6 1 19920901 Sep 1,1992 I.A. Oral RfD now under review
393 Aroclor 1248 12672-29-6 2 19921201 Dec 1,1992 I.A. Work group review date added
394 Aroclor 1248 12672-29-6 3 19930701 Jul 1,1993 I.A. Work group review date added
395 Aroclor 1248 12672-29-6 4 19930801 Aug 1,1993 I.A. Work group review date added
396 Aroclor 1248 12672-29-6 5 19940401 Apr 1,1994 I.A. Oral RfD message on-line
397 Aroclor 1248 12672-29-6 6 19940401 Apr 1,1994 VI.A. Oral RfD references on-line
398 Aroclor 1248 12672-29-6 7 19961101 Nov 1,1996 I.A. Contact's office changed
399 Aroclor 1248 12672-29-6 8 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
400 Aroclor 1248 12672-29-6 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
401 Aroclor 1254 11097-69-1 1 19930701 Jul 1,1993 I.A. Oral RfD now under review
402 Aroclor 1254 11097-69-1 2 19930901 Sep 1,1993 A11. Monor edit
403 Aroclor 1254 11097-69-1 3 19940301 Mar 1,1994 I.A. Work group review date added
404 Aroclor 1254 11097-69-1 4 19941001 Oct 1,1994 I.A. Oral RfD summary on-line
405 Aroclor 1254 11097-69-1 5 19941001 Oct 1,1994 VI.A. Oral RfD references on-line
406 Aroclor 1254 11097-69-1 6 19961101 Nov 1,1996 I.A.7. Primary contact's office changed
407 Aroclor 1254 11097-69-1 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
408 Aroclor 1254 11097-69-1 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
409 Arsenic, Inorganic 7440-38-2 1 19880630 Jun 30,1988 II.B. Revised last paragraph
410 Arsenic, Inorganic 7440-38-2 2 19880630 Jun 30,1988 II.C.1. Inhalation slope factor changed
411 Arsenic, Inorganic 7440-38-2 3 19880630 Jun 30,1988 II.C.3. Paragraph 2 added
412 Arsenic, Inorganic 7440-38-2 4 19880907 Sep 7,1988 II.B. Major text changes
413 Arsenic, Inorganic 7440-38-2 5 19881201 Dec 1,1988 II.A.2 Mabuchi et al., citation year corrected
414 Arsenic, Inorganic 7440-38-2 6 19881201 Dec 1,1988 II.A.3. Pershagen et al., citation year corrected
415 Arsenic, Inorganic 7440-38-2 7 19890901 Sep 1,1989 II.C.2. Citations added to Anacondor smelter
416 Arsenic, Inorganic 7440-38-2 8 19890901 Sep 1,1989 VI. Bibliography on-line
417 Arsenic, Inorganic 7440-38-2 9 19900601 Jun 1,1990 II.A.2. 2nd and 3rd paragraph - Text revised
418 Arsenic, Inorganic 7440-38-2 10 19900601 Jun 1,1990 II.A.4. Text corrected
419 Arsenic, Inorganic 7440-38-2 11 19900601 Jun 1,1990 II.C.1. Inhalation slope factor removed (format change)
420 Arsenic, Inorganic 7440-38-2 12 19900601 Jun 1,1990 IV.F.1. EPA contact changed
421 Arsenic, Inorganic 7440-38-2 13 19900601 Jun 1,1990 VI.C. References added
422 Arsenic, Inorganic 7440-38-2 14 19901201 Dec 1,1990 II.B. Changed slope factor to "unit risk", 2nd paragraph, 1st sentence
423 Arsenic, Inorganic 7440-38-2 15 19910201 Feb 1,1991 II.C.3. Text edited
424 Arsenic, Inorganic 7440-38-2 16 19910901 Sep 1,1991 I.A. Oral RfD summary now on-line
425 Arsenic, Inorganic 7440-38-2 17 19910901 Sep 1,1991 I.A. Oral RfD bibliography added
426 Arsenic, Inorganic 7440-38-2 18 19911001 Oct 1,1991 I.A.1. Conversion factor text clarified
427 Arsenic, Inorganic 7440-38-2 19 19911001 Oct 1,1991 IV.B.1. MCLG noted as pending change
428 Arsenic, Inorganic 7440-38-2 20 19920101 Jan 1,1992 IV. Regulatory actions updated
429 Arsenic, Inorganic 7440-38-2 21 19920801 Aug 1,1992 II. Note added to indicate text in oral quant. estimate
430 Arsenic, Inorganic 7440-38-2 22 19921001 Oct 1,1992 VI.C. Missing reference added to bibliography
431 Arsenic, Inorganic 7440-38-2 23 19930201 Feb 1,1993 I.A.4. Citations added to second paragraph
432 Arsenic, Inorganic 7440-38-2 24 19930201 Feb 1,1993 VI.A. References added to bibliography
433 Arsenic, Inorganic 7440-38-2 25 19930301 Mar 1,1993 VI.A. Corrections to references
434 Arsenic, Inorganic 7440-38-2 26 19940301 Mar 1,1994 II.D.2. Work group review date added
435 Arsenic, Inorganic 7440-38-2 27 19940601 Jun 1,1994 II. Carcinogen assessment noted as pending change
436 Arsenic, Inorganic 7440-38-2 28 19950101 Jan 1,1995 II. Pending change note revised
437 Arsenic, Inorganic 7440-38-2 29 19950101 Jan 1,1995 II.B. Dates and document no. added to oral quant. estimate
438 Arsenic, Inorganic 7440-38-2 30 19950601 Jun 1,1995 II. Carcinogenicity assessment replaced
439 Arsenic, Inorganic 7440-38-2 31 19950601 Jun 1,1995 VI.C. Carcinogenicity references replaced
440 Arsenic, Inorganic 7440-38-2 32 19950701 Jul 1,1995 II.D.1 Documentation year corrected; review statement revised
441 Arsenic, Inorganic 7440-38-2 33 19950701 Jul 1,1995 VI.C. U.S. EPA, 1994 corrected to 1993
442 Arsenic, Inorganic 7440-38-2 34 19950801 Aug 1,1995 II.D.2. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
443 Arsenic, Inorganic 7440-38-2 35 19970401 Apr 1,1997 III.,IV.,V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
444 Arsenic, Inorganic 7440-38-2 36 19980410 Apr 10,1998 II.B.3. Added discussion on expert panel workshop
445 Arsenic, Inorganic 7440-38-2 37 20000211 Feb 11,2000 II.C.2. Corrected alignment of unit risks in table with corresponding studies
446 Arsenic, Inorganic 7440-38-2 38 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
447 Arsine 7784-42-1 1 19930301 Mar 1,1993 I.B. Inhalation RfC now under review
448 Arsine 7784-42-1 2 19940301 Mar 1,1994 I.B. Inhalation RfC on-line
449 Arsine 7784-42-1 3 19940301 Mar 1,1994 VI.B. Inhalation RfC references on-line
450 Arsine 7784-42-1 4 19970401 Apr 1,1997 III.,IV.,V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
451 Arsine 7784-42-1 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
452 Asbestos 1332-21-4 1 19880926 Sep 26,1988 II. Carcinogen summary on-line
453 Asbestos 1332-21-4 2 19890501 May 1,1989 II. Carcinogen summary noted as pending change
454 Asbestos 1332-21-4 3 19891201 Dec 1,1989 VI. Bibliography on-line
455 Asbestos 1332-21-4 4 19910301 Mar 1,1991 II.A.1. Text revised
456 Asbestos 1332-21-4 5 19910701 Jul 1,1991 II.C.3 Last paragraph units changed from ug/cu.m to fibers/ml
457 Asbestos 1332-21-4 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
458 Asbestos 1332-21-4 7 19930701 Jul 1,1993 II.D.1. EPA Documentation clarified
459 Asbestos 1332-21-4 8 19930701 Jul 1,1993 VI.C. References alphabetized correctly
460 Asbestos 1332-21-4 9 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
461 Asbestos 1332-21-4 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
462 Asbestos 1332-21-4 11 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
463 Assure 76578-14-8 1 19880926 Sep 26,1988 I.A. Oral RfD summary on-line
464 Assure 76578-14-8 2 19891001 Oct 1,1989 VI. Bibliography on-line
465 Assure 76578-14-8 3 19910601 Jun 1,1991 II. Carcinogenicity assessment on-line
466 Assure 76578-14-8 4 19910601 Jun 1,1991 VI.C. Carcinogenicity references added
467 Assure 76578-14-8 5 19910701 Jul 1,1991 II.D.2. Work group review date corrected
468 Assure 76578-14-8 6 19931001 Oct 1,1993 II.D.3. Primary contact changed; secondary's phone no. changed
469 Assure 76578-14-8 7 19950801 Aug 1,1995 II.D.2. EPA's RfD/RfC and CRAVE workgropups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS pilot Program replaced the workgroup functions beginning in September, 1995.
470 Assure 76578-14-8 8 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
471 Assure 76578-14-8 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
472 Asulam 3337-71-1 1 19891101 Nov 1,1989 VI. Bibliography on-line
473 Asulam 3337-71-1 2 19920101 Jan 1,1992 IV. Regulatory action section on-line
474 Asulam 3337-71-1 3 19950101 Jan 1,1995 I.A. Oral RfD noted as pending change
475 Asulam 3337-71-1 4 19950101 Jan 1,1995 I.A.6. Work group reveiw date added
476 Asulam 3337-71-1 5 19950801 Aug 1,1995 I.A.,I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reveiws that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
477 Asulam 3337-71-1 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
478 Asulam 3337-71-1 7 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
479 Asulam 3337-71-1 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
480 Atrazine 1912-24-9 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
481 Atrazine 1912-24-9 2 19880822 Aug 22,1988 I.A. Withdrawn; new oral RfD in preparation
482 Atrazine 1912-24-9 3 19880907 Sep 7,1988 I.A. Revised oral RfD summary added
483 Atrazine 1912-24-9 4 19891001 Oct 1,1989 VI. Bibliography on-line
484 Atrazine 1912-24-9 5 19900301 Mar 1,1990 I.A. Withdrawn; new oral RfD in preparation
485 Atrazine 1912-24-9 6 19900301 Mar 1,1990 VI.A. Oral RfD references withdrawn
486 Atrazine 1912-24-9 7 19900501 May 1,1990 I.A. Oral RfD summary replaced; RfD unchanged
487 Atrazine 1912-24-9 8 19900501 May 1,1990 VI.A. Oral RfD references replaced
488 Atrazine 1912-24-9 9 19910101 Jan 1,1991 I.A. Text edited
489 Atrazine 1912-24-9 10 19910101 Jan 1,1991 II. Carcinogen assessment now under review
490 Atrazine 1912-24-9 11 19920101 Jan 1,1992 IV. Regulatory Action section on-line
491 Atrazine 1912-24-9 12 19921201 Dec 1,1992 I.A. Oral RfD summary noted as pending change
492 Atrazine 1912-24-9 13 19921201 Dec 1,1992 I.A.6. Work group review date added
493 Atrazine 1912-24-9 14 19930101 Jan 1,1993 I.A. Withdrawn; new oral RfD in preparation
494 Atrazine 1912-24-9 15 19930101 Jan 1,1993 I.A. Work group review date added
495 Atrazine 1912-24-9 16 19930101 Jan 1,1993 VI.A. Oral RfD references withdrawn
496 Atrazine 1912-24-9 17 19931001 Oct 1,1993 I.A. Oral RfD summary replaced; RfD changed
497 Atrazine 1912-24-9 18 19931001 Oct 1,1993 VI.A. Oral RfD references replaced
498 Atrazine 1912-24-9 19 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning ing September, 1995.
499 Atrazine 1912-24-9 20 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
500 Atrazine 1912-24-9 21 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
501 Avermectin B1 65195-55-3 1 19890701 Jul 1,1989 I.A. Oral RfD summary on-line
502 Avermectin B1 65195-55-3 2 19890701 Jul 1,1989 VI. Bibliography on-line
503 Avermectin B1 65195-55-3 3 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Acions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
504 Avermectin B1 65195-55-3 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
505 Azobenzene 103-33-3 1 19880907 Sep 7,1988 II. Carcinogen summary on-line
506 Azobenzene 103-33-3 2 19890801 Aug 1,1989 VI. Bibliography on-line
507 Azobenzene 103-33-3 3 19910101 Jan 1,1991 II. Text edited
508 Azobenzene 103-33-3 4 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
509 Azobenzene 103-33-3 5 19930701 Jul 1,1993 II.D.3. Secondary contact's phone number changed
510 Azobenzene 103-33-3 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisoreis, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information
511 Azobenzene 103-33-3 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
512 Barium and Compounds 7440-39-3 1 19870930 Sep 30,1987 IV. Regulatory Action section added
513 Barium and Compounds 7440-39-3 2 19880301 Mar 1,1988 I.A.1. Dose conversion clarified
514 Barium and Compounds 7440-39-3 3 19880301 Mar 1,1988 I.A.3. Text changed
515 Barium and Compounds 7440-39-3 4 19880301 Mar 1,1988 I.A.7. Secondary contact changed
516 Barium and Compounds 7440-39-3 5 19880630 Jun 30,1988 I.A.7. Contacts switched
517 Barium and Compounds 7440-39-3 6 19890801 Aug 1,1989 VI. Bibliography on-line
518 Barium and Compounds 7440-39-3 7 19900601 Jun 1,1990 IV.F.1. EPA contact changed
519 Barium and Compounds 7440-39-3 8 19900701 Jul 1,1990 I.A. Withdrawn; new RfD verified (in preparation)
520 Barium and Compounds 7440-39-3 9 19900701 Jul 1,1990 VI. Bibliography withdrawn
521 Barium and Compounds 7440-39-3 10 19900801 Aug 1,1990 I.A. Oral RfD summary replaced; RfD changed
522 Barium and Compounds 7440-39-3 11 19900801 Aug 1,1990 VI. Bibliography replaced
523 Barium and Compounds 7440-39-3 12 19901201 Dec 1,1990 I.B. Inhalation RfC now under review
524 Barium and Compounds 7440-39-3 13 19920101 Jan 1,1992 IV. Regulatory actions updated
525 Barium and Compounds 7440-39-3 14 19950801 Aug 1,1995 I.B. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
526 Barium and Compounds 7440-39-3 15 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
527 Barium and Compounds 7440-39-3 16 19980330 Mar 30,1998 I.A. Oral RfD Assessment
528 Barium and Compounds 7440-39-3 17 19980330 Mar 30,1998 I.B. Inahalation RfC Assessment
529 Barium and Compounds 7440-39-3 18 19980330 Mar 30,1998 II. Carcinogenicity Assessment
530 Barium and Compounds 7440-39-3 19 19990121 Jan 21,1999 I.A. Minor revisions to RfD Assessment, revised critical effect
531 Barium and Compounds 7440-39-3 20 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
532 Barium cyanide 542-62-1 1 19880301 Mar 1,1988 I.A.2. Text revised paragraph 3
533 Barium cyanide 542-62-1 2 19890101 Jan 1,1989 I.A.1. LOAEL dose rate units corrected
534 Barium cyanide 542-62-1 3 19910301 Mar 1,1991 VI. Bibliography withdrawn
535 Barium cyanide 542-62-1 4 19891101 Nov 1,1989 VI. Bibliography on-line
536 Barium cyanide 542-62-1 5 19910301 Mar 1,1991 I.A. Oral RfD withdrawn pending additional review
537 Barium cyanide 542-62-1 6 19920101 Jan 1,1992 IV. Regulatory actions updated
538 Barium cyanide 542-62-1 7 19930801 Aug 1,1993 I.A. Oral RfD withdrawn pending addditional review
539 Barium cyanide 542-62-1 8 19930801 Aug 1,1993 I.A. EPA contact changed
540 Barium cyanide 542-62-1 9 19950801 Aug 1,1995 I.A. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
541 Barium cyanide 542-62-1 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
542 Barium cyanide 542-62-1 11 20181219 Dec 19,2018 Archived Chemical IRIS Program requested that we archive assessments with no values.
543 Barium cyanide 542-62-1 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
544 Baygon 114-26-1 1 19870331 Mar 31,1987 I.A.6. Documentation corrected
545 Baygon 114-26-1 2 19870331 Mar 31,1987 IV.A. Pesticide AI data added
546 Baygon 114-26-1 3 19891101 Nov 1,1989 VI. Bibliography on-line
547 Baygon 114-26-1 4 19901001 Oct 1,1990 III.A. Health Advisory on-line
548 Baygon 114-26-1 5 19901001 Oct 1,1990 VI.D. Health Advisory references added
549 Baygon 114-26-1 6 19920101 Jan 1,1992 IV. Regulatory action updated
550 Baygon 114-26-1 7 19920701 Jul 1,1992 I.A.4. Study 5 citation corrected
551 Baygon 114-26-1 8 19970401 Apr 1,1997 III., IV., V., VI.D. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS useres were directed to the appropriate EPA Program Offices for this information.
552 Baygon 114-26-1 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
553 Bayleton 43121-43-3 1 19880301 Mar 1,1988 I.A.1. Dose conversion clarified
554 Bayleton 43121-43-3 2 19880301 Mar 1,1988 I.A.4. Core grades added
555 Bayleton 43121-43-3 3 19891101 Nov 1,1989 VI. Bibliography on-line
556 Bayleton 43121-43-3 4 19920101 Jan 1,1992 IV. Regulatory action on-line
557 Bayleton 43121-43-3 5 19870401 Apr 1,1987 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS useres were directed to the appropriate EPA Program Offices for this information.
558 Bayleton 43121-43-3 6 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
559 Bayleton 43121-43-3 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
560 Baythroid 68359-37-5 1 19891101 Nov 1,1989 VI. Bibliography on-line
561 Baythroid 68359-37-5 2 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
562 Baythroid 68359-37-5 3 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
563 Benefin 1861-40-1 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
564 Benefin 1861-40-1 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
565 Benomyl 17804-35-2 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
566 Benomyl 17804-35-2 2 19890301 Mar 1,1989 I.A. Major text revisions
567 Benomyl 17804-35-2 3 19890701 Jul 1,1989 VI. Bibliography on-line
568 Benomyl 17804-35-2 4 19920101 Jan 1,1992 IV. Regulatory action updated
569 Benomyl 17804-35-2 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
570 Benomyl 17804-35-2 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
571 Bentazon (Basagran) 25057-89-0 1 19890401 Apr 1,1989 III. Health Advisory on-line
572 Bentazon (Basagran) 25057-89-0 2 19891101 Nov 1,1989 VI. Bibliography on-line
573 Bentazon (Basagran) 25057-89-0 3 19910501 May 1,1991 I.A. Oral RfD Summary noted as pending change
574 Bentazon (Basagran) 25057-89-0 4 19920101 Jan 1,1992 IV. Regulatory action section on-line
575 Bentazon (Basagran) 25057-89-0 5 19950101 Jan 1,1995 I.A.6. Workgroup review date added
576 Bentazon (Basagran) 25057-89-0 6 19950801 Aug 1,1995 I.A., I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
577 Bentazon (Basagran) 25057-89-0 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
578 Bentazon (Basagran) 25057-89-0 8 19980302 Mar 2,1998 I.A., II., VI. New RfD, cancer assessment
579 Bentazon (Basagran) 25057-89-0 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
580 Benz[a]anthracene 56-55-3 1 19901201 Dec 1,1990 II. Carcinogen assessment on-line
581 Benz[a]anthracene 56-55-3 2 19901201 Dec 1,1990 VI. Bibliography on-line
582 Benz[a]anthracene 56-55-3 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
583 Benz[a]anthracene 56-55-3 4 19930901 Sep 1,1993 II. Carcinogenicity assessment noted as pending change
584 Benz[a]anthracene 56-55-3 5 19930901 Sep 1,1993 II.D.2. Work group review date added
585 Benz[a]anthracene 56-55-3 6 19931101 Nov 1,1993 II.D.2. Work group reveiw date added
586 Benz[a]anthracene 56-55-3 7 19940301 Mar 1,1994 II. Pending change note removed; no change
587 Benz[a]anthracene 56-55-3 8 19940301 Mar 1,1994 II.D.2. Work group review date added
588 Benz[a]anthracene 56-55-3 9 19940901 Sep 1,1994 I.B. Inhalation RfC now under review
589 Benz[a]anthracene 56-55-3 10 19950801 Aug 1,1995 I.B., II.D.2. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
590 Benz[a]anthracene 56-55-3 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
591 Benz[a]anthracene 56-55-3 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
592 Benzaldehyde 100-52-7 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
593 Benzaldehyde 100-52-7 2 19891201 Dec 1,1989 VI. Bibliography on-line
594 Benzaldehyde 100-52-7 3 19920101 Jan 1,1992 I.A.7. Secondary contact changed
595 Benzaldehyde 100-52-7 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
596 Benzaldehyde 100-52-7 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
597 Benzaldehyde 100-52-7 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
598 Benzene 71-43-2 1 19881201 Dec 1,1988 II.A.4. Anderson and Richardson citation year corrected
599 Benzene 71-43-2 2 19881201 Dec 1,1988 II.A.4. Kissling and Speck citation year corrected
600 Benzene 71-43-2 3 19890701 Jul 1,1989 I.B. Inhalation RfD now under review
601 Benzene 71-43-2 4 19900201 Feb 1,1990 II. Clarified citations
602 Benzene 71-43-2 5 19900201 Feb 1,1990 II.A.3. Corrected Maltoni, 1979 to Maltoni and Scarnato, 1979
603 Benzene 71-43-2 6 19900201 Feb 1,1990 II.A.3. Corrected Maltoni, 1983 to Maltoni et al., 1983
604 Benzene 71-43-2 7 19900201 Feb 1,1990 II.A.3. Corrected Synder et al., 1980 to 1981
605 Benzene 71-43-2 8 19900201 Feb 1,1990 VI. Bibliography on-line
606 Benzene 71-43-2 9 19900301 Mar 1,1990 VI.C. Clarify Maltoni et al., 1983 and NTP, 1986 references
607 Benzene 71-43-2 10 19900801 Aug 1,1990 III.A.10. Primary contact changed
608 Benzene 71-43-2 11 19900801 Aug 1,1990 IV.F.1. EPA contact changed
609 Benzene 71-43-2 12 19910101 Jan 1,1991 II. Text edited
610 Benzene 71-43-2 13 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
611 Benzene 71-43-2 14 19920101 Jan 1,1992 IV. Regulatory actions updated
612 Benzene 71-43-2 15 19920401 Apr 1,1992 II.B.2. Text revised
613 Benzene 71-43-2 16 19940201 Feb 1,1994 II.D.3. Secondary contact's phone number changed
614 Benzene 71-43-2 17 19981016 Oct 16,1998 II., VI. Revised inhalation carcinogenicity section and references
615 Benzene 71-43-2 18 20000119 Jan 19,2000 II., VI. Revised oral carcinogenicity section and references
616 Benzene 71-43-2 19 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
617 Benzidine 92-87-5 1 19880301 Mar 1,1988 II.B.4. Confidence statement revised
618 Benzidine 92-87-5 2 19880301 Mar 1,1988 II.C.4. Confidence statement revised
619 Benzidine 92-87-5 3 19880301 Mar 1,1988 II.D.3. Contacts switched
620 Benzidine 92-87-5 4 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
621 Benzidine 92-87-5 5 19890101 Jan 1,1989 I.A.1. LOAEL and RfD corrected
622 Benzidine 92-87-5 6 19890101 Jan 1,1989 I.A.2. Dose levels corrected
623 Benzidine 92-87-5 7 19900101 Jan 1,1990 I.A.2. Clarify text
624 Benzidine 92-87-5 8 19900101 Jan 1,1990 II.A.2. Corrected Zavon et al. (1973) to Zavon (1973)
625 Benzidine 92-87-5 9 19900101 Jan 1,1990 II.A.4. Corrected Parodi, 1983 to Parodi et al., 1983
626 Benzidine 92-87-5 10 19900101 Jan 1,1990 VI. Bibliography on-line
627 Benzidine 92-87-5 11 19910501 May 1,1991 I.B. Inhalation RfC now under review
628 Benzidine 92-87-5 12 19910701 Jul 1,1991 I.B. Inhalation RfC message on-line
629 Benzidine 92-87-5 13 19910701 Jul 1,1991 VI.B. Inhalation RfC references added
630 Benzidine 92-87-5 14 19920101 Jan 1,1992 I.A.7. Secondary contact changed
631 Benzidine 92-87-5 15 19920101 Jan 1,1992 IV. Regulatory actions updated
632 Benzidine 92-87-5 16 19930701 Jul 1,1993 II.D.1. Zavon, 1973 reference removed from EPA Documentation
633 Benzidine 92-87-5 17 19950201 Feb 1,1995 I.A.7. Secondary contact's name changed
634 Benzidine 92-87-5 18 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
635 Benzidine 92-87-5 19 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
636 Benzo[a]pyrene (BaP) 50-32-8 1 19890801 Aug 1,1989 VI. Bibliography on-line
637 Benzo[a]pyrene (BaP) 50-32-8 2 19920101 Jan 1,1992 II. Carcinogen assessment noted as pending change
638 Benzo[a]pyrene (BaP) 50-32-8 3 19920101 Jan 1,1992 IV. Regulatory actions updated
639 Benzo[a]pyrene (BaP) 50-32-8 4 19920401 Apr 1,1992 II. Summary revised oral quantitative section added
640 Benzo[a]pyrene (BaP) 50-32-8 5 19920401 Apr 1,1992 VI.C. Carcinogen assessment references revised
641 Benzo[a]pyrene (BaP) 50-32-8 6 19920501 May 1,1992 II.D.2. Work group review and verification date corrected
642 Benzo[a]pyrene (BaP) 50-32-8 7 19920701 Jul 1,1992 II. Text revised in Note
643 Benzo[a]pyrene (BaP) 50-32-8 8 19920701 Jul 1,1992 II.B. Range of slope factors corrected
644 Benzo[a]pyrene (BaP) 50-32-8 9 19920701 Jul 1,1992 II.B.1. Slope factor and risks corrected
645 Benzo[a]pyrene (BaP) 50-32-8 10 19920701 Jul 1,1992 II.B.2. Data table heading corrected
646 Benzo[a]pyrene (BaP) 50-32-8 11 19920701 Jul 1,1992 II.B.3. Slope factor corrected last paragraph
647 Benzo[a]pyrene (BaP) 50-32-8 12 19920701 Jul 1,1992 II.D.3. Secondary contact changed
648 Benzo[a]pyrene (BaP) 50-32-8 13 19930901 Sep 1,1993 II. Carcinogenicity assessment noted as pending change
649 Benzo[a]pyrene (BaP) 50-32-8 14 19930901 Sep 1,1993 II.D.2. Work group review date added
650 Benzo[a]pyrene (BaP) 50-32-8 15 19931201 Dec 1,1993 VI.C. Reference revised - U.S. EPA, 1991b
651 Benzo[a]pyrene (BaP) 50-32-8 16 19940201 Feb 1,1994 II.D.3. Primary contact's phone number changed
652 Benzo[a]pyrene (BaP) 50-32-8 17 19940301 Mar 1,1994 II.D.2. Work group review date added
653 Benzo[a]pyrene (BaP) 50-32-8 18 19940701 Jul 1,1994 II.D.2. Work group review date added
654 Benzo[a]pyrene (BaP) 50-32-8 19 19941101 Nov 1,1994 II.B.1. Slope factor clarified changed O to %220%22
655 Benzo[a]pyrene (BaP) 50-32-8 20 19950801 Aug 1,1995 II.D.2. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
656 Benzo[a]pyrene (BaP) 50-32-8 21 19940301 Mar 1,1994 II. Pending change note removed no change
657 Benzo[a]pyrene (BaP) 50-32-8 22 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
658 Benzo[a]pyrene (BaP) 50-32-8 23 20170119 Jan 19,2017 All EPA completed a reassessment, updating all values.
659 Benzo[a]pyrene (BaP) 50-32-8 24 20180511 May 11,2018 TR Supplemental Info An error was corrected in Table E-1 of the supplemental information document based on a comment from the IRIS hotline. See errata sheet for additional details.
660 Benzo[a]pyrene (BaP) 50-32-8 25 20180802 Aug 2,2018 Key Values WOE Note Added a note regarding ADAF to both the OSF and IUR entries to further explain what is in the tox review.
661 Benzo[a]pyrene (BaP) 50-32-8 26 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
662 Benzo[b]fluoranthene 205-99-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
663 Benzo[g,h,i]perylene 191-24-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
664 Benzo[k]fluoranthene 207-08-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
665 Benzoic acid 65-85-0 1 20180927 Sep 27,2018 Noncancer Critical Updated the system from none to other so it would show up in the advanced search.
666 Benzoic acid 65-85-0 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
667 Benzotrichloride 98-07-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
668 Benzyl chloride 100-44-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
669 Beryllium and compounds 7440-41-7 1 19880301 Mar 1,1988 I.A.1. Reference dose table clarified
670 Beryllium and compounds 7440-41-7 2 19880301 Mar 1,1988 I.A.2. Text added
671 Beryllium and compounds 7440-41-7 3 19880907 Sep 7,1988 II. Carcinogen summary on-line
672 Beryllium and compounds 7440-41-7 4 19900101 Jan 1,1990 II.A.2. References clarified
673 Beryllium and compounds 7440-41-7 5 19900101 Jan 1,1990 II.A.3. Text revised
674 Beryllium and compounds 7440-41-7 6 19900101 Jan 1,1990 II.B. Quanititative estimate for oral exposure section added
675 Beryllium and compounds 7440-41-7 7 19900101 Jan 1,1990 II.C.3. Text revised
676 Beryllium and compounds 7440-41-7 8 19900101 Jan 1,1990 II.D.2. Work group review dates and verification date added
677 Beryllium and compounds 7440-41-7 9 19900101 Jan 1,1990 VI. Bibliography on-line
678 Beryllium and compounds 7440-41-7 10 19900201 Feb 1,1990 VI.A. Puzanova et al. 1978 citation corrected
679 Beryllium and compounds 7440-41-7 11 19900201 Feb 1,1990 VI.C. Wagner et al. 1969 citation corrected
680 Beryllium and compounds 7440-41-7 12 19900901 Sep 1,1990 I.A. Morgareidge ref. now Cox (same study-authors reversed)
681 Beryllium and compounds 7440-41-7 13 19900901 Sep 1,1990 IV.F.1. EPA contact changed
682 Beryllium and compounds 7440-41-7 14 19900901 Sep 1,1990 VI.A. Morgareidge ref. now Cox (same study-authors reversed)
683 Beryllium and compounds 7440-41-7 15 19910101 Jan 1,1991 II. Text edited
684 Beryllium and compounds 7440-41-7 16 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
685 Beryllium and compounds 7440-41-7 17 19920101 Jan 1,1992 IV. Regulatory actions updated
686 Beryllium and compounds 7440-41-7 18 19920901 Sep 1,1992 II.A.3. U.S. EPA citation year corrected, paragraph 3
687 Beryllium and compounds 7440-41-7 19 19920901 Sep 1,1992 II.D.1. Source document year corrected
688 Beryllium and compounds 7440-41-7 20 19920901 Sep 1,1992 II.D.1. Review statement revised
689 Beryllium and compounds 7440-41-7 21 19920901 Sep 1,1992 VI.C. U.S. EPA reference year corrected
690 Beryllium and compounds 7440-41-7 22 19930201 Feb 1,1993 I.A.7. Primary contact changed
691 Beryllium and compounds 7440-41-7 23 19980403 Apr 3,1998 I.A. Oral RfD Assessment
692 Beryllium and compounds 7440-41-7 24 19980403 Apr 3,1998 I.B. Inhalation RfC Assessment
693 Beryllium and compounds 7440-41-7 25 19980403 Apr 3,1998 II. Carcinogenicity Assessment
694 Beryllium and compounds 7440-41-7 26 19950801 Aug 1,1995 II.D.2. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. the IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
695 Beryllium and compounds 7440-41-7 27 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were remvoed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
696 Beryllium and compounds 7440-41-7 28 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
697 Bidrin 141-66-2 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
698 Bidrin 141-66-2 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
699 Biphenthrin 82657-04-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
700 Biphenyl 92-52-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
701 Bis(2-chloro-1-methylethyl) ether 108-60-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
702 Bis(2-chloroethoxy)methane 111-91-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
703 Bis(chloroethyl)ether (BCEE) 111-44-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
704 Bis(chloromethyl)ether (BCME) 542-88-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
705 Bisphenol A 80-05-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
706 Boron and Compounds 7440-42-8 1 None None
707 Boron and Compounds 7440-42-8 2 I.A., I.B., II Revised RfD, added RfC discussion and added carcinogenicity assessment.
708 Boron and Compounds 7440-42-8 3 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
709 Bromate 15541-45-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
710 Brominated dibenzofurans None 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
711 Bromobenzene 108-86-1 1 20090930 Sep 30,2009 I., II. File first on-line.
712 Bromobenzene 108-86-1 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
713 Bromochloromethane 74-97-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
714 Bromodichloromethane 75-27-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
715 p-Bromodiphenyl ether 101-55-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
716 Bromoform 75-25-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
717 Bromomethane 74-83-9 1 19870930 Sep 30,1987 I.A.1. MF changed to UF -- no change in RfD
718 Bromomethane 74-83-9 2 19870930 Sep 30,1987 I.A.2. Text changes
719 Bromomethane 74-83-9 3 19870930 Sep 30,1987 I.A.3. Text changes
720 Bromomethane 74-83-9 4 19870930 Sep 30,1987 I.A.4. Study descriptions added
721 Bromomethane 74-83-9 5 19870930 Sep 30,1987 I.A.5. Text change
722 Bromomethane 74-83-9 6 19870930 Sep 30,1987 I.A.6. Secondary contact changed
723 Bromomethane 74-83-9 7 19880301 Mar 1,1988 I.A.1. Critical effect added
724 Bromomethane 74-83-9 8 19880630 Jun 30,1988 I.A. Withdrawn; new RfD verified (in preparation)
725 Bromomethane 74-83-9 9 19880926 Sep 26,1988 I.A. Oral RfD summary replaced
726 Bromomethane 74-83-9 10 19890501 May 1,1989 II. Carcinogen assessment now under review
727 Bromomethane 74-83-9 11 19890601 Jun 1,1989 II. Carcinogen summary on-line
728 Bromomethane 74-83-9 12 19890601 Jun 1,1989 VI. Bibliography on-line
729 Bromomethane 74-83-9 13 19890801 Aug 1,1989 VI.A. Oral RfD references added
730 Bromomethane 74-83-9 14 19891001 Oct 1,1989 I.B. Inhalation RfC now under review
731 Bromomethane 74-83-9 15 19900601 Jun 1,1990 I.A.2. Dosing clarified
732 Bromomethane 74-83-9 16 19900601 Jun 1,1990 IV.F.1. EPA contact changed
733 Bromomethane 74-83-9 17 19900801 Aug 1,1990 I.A. Text edited
734 Bromomethane 74-83-9 18 19900801 Aug 1,1990 II. Text edited
735 Bromomethane 74-83-9 19 19900801 Aug 1,1990 III.A. Health Advisory on-line
736 Bromomethane 74-83-9 20 19900801 Aug 1,1990 VI.D. Health Advisory references added
737 Bromomethane 74-83-9 21 19910701 Jul 1,1991 I.A.7. Secondary contact changed
738 Bromomethane 74-83-9 22 19920101 Jan 1,1992 IV. Regulatory actions updated
739 Bromomethane 74-83-9 23 19920401 Apr 1,1992 I.B. Inhalation RfC summary on-line
740 Bromomethane 74-83-9 24 19920401 Apr 1,1992 VI.B. Inhalation RfC references added
741 Bromomethane 74-83-9 25 19920501 May 1,1992 I.B.6. Deleted incorrect work group review date
742 Bromomethane 74-83-9 26 19921001 Oct 1,1992 I.B.1. "NOAEL" corrected to LOAEL
743 Bromomethane 74-83-9 27 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
744 Bromomethane 74-83-9 28 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
745 Bromotrichloromethane 75-62-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
746 Bromoxynil 1689-84-5 1 20180927 Sep 27,2018 Noncancer Critical Updated the system from none to other so it would show up in the advanced search.
747 Bromoxynil 1689-84-5 2 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
748 Bromoxynil 1689-84-5 3 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
749 Bromoxynil octanoate 1689-99-2 1 20180927 Sep 27,2018 Noncancer Critical Updated the system from none to other so it would show up in the advanced search.
750 Bromoxynil octanoate 1689-99-2 2 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
751 Bromoxynil octanoate 1689-99-2 3 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
752 1,3-Butadiene 106-99-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
753 Butyl benzyl phthalate (BBP) 85-68-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
754 Butylate 2008-41-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
755 t-Butylchloride 507-20-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
756 Butylphthalyl butylglycolate (BPBG) 85-70-1 1 20180927 Sep 27,2018 Noncancer Critical Updated the system from none to other so it would show up in the advanced search.
757 Butylphthalyl butylglycolate (BPBG) 85-70-1 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
758 Cacodylic acid 75-60-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
759 Cadmium 7440-43-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
760 Calcium cyanide 592-01-8 1 20100928 Sep 28,2010 I.A. Updated RfD with data from Hydrogen Cyanide and Cyanide Salts Assessment
761 Calcium cyanide 592-01-8 2 20180927 Sep 27,2018 n Updated the system value to other so it would show up in the advanced search.
762 Calcium cyanide 592-01-8 3 20181003 Oct 3,2018 I.A. Updated the system value to reproductive.
763 Calcium cyanide 592-01-8 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
764 Caprolactam 105-60-2 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
765 Caprolactam 105-60-2 2 19891101 Nov 1,1989 VI. Bibliography on-line
766 Caprolactam 105-60-2 3 19940901 Sep 1,1994 I.B. Inhalation RfC under review and message on-line
767 Caprolactam 105-60-2 4 19940901 Sep 1,1994 VI.B. Inhalation RfC references on-line
768 Caprolactam 105-60-2 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
769 Caprolactam 105-60-2 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
770 Captafol 2425-06-1 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
771 Captafol 2425-06-1 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
772 Captan 133-06-2 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
773 Captan 133-06-2 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
774 Carbaryl 63-25-2 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
775 Carbaryl 63-25-2 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
776 Carbofuran 1563-66-2 1 None None
777 Carbofuran 1563-66-2 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
778 Carbon disulfide 75-15-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
779 Carbon tetrachloride 56-23-5 30 20100331 Mar 31,2010 I., II., VI. RfD and cancer assessment sections updated RfC assessment added.
780 Carbon tetrachloride 56-23-5 31 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
781 Carbonyl sulfide 463-58-1 1 20181219 Dec 19,2018 Archived Chemical IRIS Program requested that we archive assessments with no values.
782 Carbonyl sulfide 463-58-1 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
783 Carbosulfan 55285-14-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
784 Carboxin 5234-68-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
785 Cerium Oxide and Cerium Compounds 1306-38-3 1 20090929 Sep 29,2009 I., II. RfD, RfC, and cancer assessment first on-line
786 Cerium Oxide and Cerium Compounds 1306-38-3 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
787 Chloral hydrate 302-17-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
788 Chloramben 133-90-4 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
789 Chloramben 133-90-4 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
790 Chlordane (Technical) 12789-03-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
791 Chlordecone (Kepone) 143-50-0 1 20090922 Sep 22,2009 I., II. RfD, RfC, and cancer assessment first on line
792 Chlordecone (Kepone) 143-50-0 2 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
793 Chlordecone (Kepone) 143-50-0 3 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
794 Chlorimuron-ethyl 90982-32-4 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
795 Chlorimuron-ethyl 90982-32-4 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
796 Chlorine 7782-50-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
797 Chlorine cyanide 506-77-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
798 Chlorine dioxide 10049-04-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
799 Chlorite (sodium salt) 7758-19-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
800 1-Chloro-1,1-difluoroethane 75-68-3 1 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
801 1-Chloro-1,1-difluoroethane 75-68-3 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
802 2-Chloroacetophenone 532-27-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
803 p-Chloroaniline 106-47-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
804 Chlorobenzene 108-90-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
805 Chlorobenzilate 510-15-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
806 1-Chlorobutane 109-69-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
807 2-Chlorobutane 78-86-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
808 Chlorocyclopentadiene 41851-50-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
809 Chlorodifluoromethane 75-45-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
810 Chloroform 67-66-3 1 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
811 Chloromethyl methyl ether (CMME) 107-30-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
812 beta-Chloronaphthalene 91-58-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
813 2-Chlorophenol 95-57-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
814 p-Chlorophenyl methyl sulfide 123-09-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
815 p-Chlorophenyl methyl sulfone 98-57-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
816 p-Chlorophenyl methyl sulfoxide 934-73-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
817 Chloroprene 126-99-8 1 20100930 Sep 30,2010 I, II, VI, VII, VIII RfC, and cancer assessment added
818 Chloroprene 126-99-8 2 20180710 Jul 10,2018 Key Values Table A footnote was added for ADAF.
819 Chloroprene 126-99-8 3 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
820 Chlorothalonil 1897-45-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
821 o-Chlorotoluene 95-49-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
822 Chlorpropham 101-21-3 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
823 Chlorpropham 101-21-3 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
824 Chlorpyrifos 2921-88-2 1 19880301 Mar 1,1988 I.A.5. Core grades added
825 Chlorpyrifos 2921-88-2 2 19891101 Nov 1,1989 VI. Bibliography on-line
826 Chlorpyrifos 2921-88-2 3 19920101 Jan 1,1992 IV. Regulatory actions updated
827 Chlorpyrifos 2921-88-2 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
828 Chlorpyrifos 2921-88-2 5 20180314 Mar 14,2018 Archived Assessment IRIS working with OPP agreed to mark this pesticide chemical archived.
829 Chlorpyrifos 2921-88-2 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
830 Chlorsulfuron 64902-72-3 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
831 Chlorsulfuron 64902-72-3 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
832 Chromium(III), insoluble salts 16065-83-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
833 Chromium(VI) 18540-29-9 1 19870930 Sep 30,1987 II.A.1. Citation corrected
834 Chromium(VI) 18540-29-9 2 19880301 Mar 1,1988 II.C.4. Confidence statement revised
835 Chromium(VI) 18540-29-9 3 19880301 Mar 1,1988 II.D.3. Contacts switched
836 Chromium(VI) 18540-29-9 4 19880301 Mar 1,1988 III.A. Health Advisory added
837 Chromium(VI) 18540-29-9 5 19891201 Dec 1,1989 I.B. Inhalation RfD now under review
838 Chromium(VI) 18540-29-9 6 19900601 Jun 1,1990 II.A.1. Basis - text revised
839 Chromium(VI) 18540-29-9 7 19900601 Jun 1,1990 II.B. Text revised
840 Chromium(VI) 18540-29-9 8 19900601 Jun 1,1990 IV.A.1. Area code for EPA contact corrected
841 Chromium(VI) 18540-29-9 9 19900601 Jun 1,1990 IV.F.1 EPA contact changed
842 Chromium(VI) 18540-29-9 10 19900601 Jun 1,1990 VI. Bibliography on-line
843 Chromium(VI) 18540-29-9 11 19910101 Jan 1,1991 II. Text edited
844 Chromium(VI) 18540-29-9 12 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
845 Chromium(VI) 18540-29-9 13 19910301 Mar 1,1991 II.A.1. Text Revised
846 Chromium(VI) 18540-29-9 14 19910301 Mar 1,1991 II.A.4. Text revised
847 Chromium(VI) 18540-29-9 15 19910301 Mar 1,1991 II.B. Text revised
848 Chromium(VI) 18540-29-9 16 19920101 Jan 1,1992 I.A.7. Secondary contact changed
849 Chromium(VI) 18540-29-9 17 19920101 Jan 1,1992 IV. Regulatory actions updated
850 Chromium(VI) 18540-29-9 18 19920401 Apr 1,1992 IV.A.1. CAA regulatory action withdrawn
851 Chromium(VI) 18540-29-9 19 19920601 Jun 1,1992 All CASRN corrected from 7440-47-3 to 18540-29-9
852 Chromium(VI) 18540-29-9 20 19940901 Sep 1,1994 I.A.6. Work group review date added
853 Chromium(VI) 18540-29-9 21 19950201 Feb 1,1995 I.A. RfD noted as pending change: Work Grp Mtg on 8/3/1994
854 Chromium(VI) 18540-29-9 22 19950801 Aug 1,1995 I.A., I.A.6., I.B. EPA's RfD/RfC and CRAVE workgroups were discontinued in 1995. Chemical substance reviews that were not completed by September May 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
855 Chromium(VI) 18540-29-9 23 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
856 Chromium(VI) 18540-29-9 24 19961201 Dec 1,1996 I.A.7. Secondary contact removed
857 Chromium(VI) 18540-29-9 25 19980903 Sep 3,1998 I., II., VI. Revised RfD, RfC, carcinogenicity assessment, and refs.
858 Chromium(VI) 18540-29-9 26 20190718 Jul 18,2019 RFC Particulates Made a correction to the labels in the table for the POD to match the IRIS Summary.
859 Chromium(VI) 18540-29-9 27 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
860 Chrysene 218-01-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
861 Cobalt and Cobalt Compounds 1307-96-6 1 20220624 Jun 24,2022 None EPA announced the cobalt assessment in the program Outlook (Jun 2022).
862 Cobalt and Cobalt Compounds 1307-96-6 2 20221114 Nov 14,2022 None IRIS released the IAP
863 Cobalt and Cobalt Compounds 1307-96-6 3 20221213 Dec 13,2022 None IRIS announced the public science meeting registration was open for the Jan 11, 2023 meeting.
864 Coke oven emissions None 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
865 Copper 7440-50-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
866 Copper cyanide 544-92-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
867 Creosote 8001-58-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
868 Crotonaldehyde 123-73-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
869 Cumene 98-82-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
870 Cyanazine 21725-46-2 1 20181210 Dec 10,2018 Archived Values Requested by the IRIS Program to archive the chemicals with null values.
871 Cyanazine 21725-46-2 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
872 Cyanide, free 57-12-5 1 20100928 Sep 28,2010 I.A. Updated RfD with data from Hydrogen Cyanide and Cyanide Salts Assessment
873 Cyanide, free 57-12-5 2 19870331 Mar 31,1987 IV.B. RQ - new rationale text
874 Cyanide, free 57-12-5 3 19880301 Mar 1,1988 I.A.5. Confidence levels revised
875 Cyanide, free 57-12-5 4 19880301 Mar 1,1988 III.A. Health Advisory added
876 Cyanide, free 57-12-5 5 19880907 Sep 7,1988 II. Carcinogen summary on-line
877 Cyanide, free 57-12-5 6 19900101 Jan 1,1990 VI. Bibliography on-line
878 Cyanide, free 57-12-5 7 19900801 Aug 1,1990 III.A.10 Primary contact changed
879 Cyanide, free 57-12-5 8 20180927 Sep 27,2018 Noncancer Critical Updated the system value to other so it would show up in the advanced search.
880 Cyanide, free 57-12-5 10 20181003 Oct 3,2018 I.A. Updated the RfD system value to reproductive.
881 Cyanide, free 57-12-5 11 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
882 Cyanogen 460-19-5 1 None None
883 Cyanogen 460-19-5 2 20100928 Sep 28,2010 I.A. Updated RfD with data from Hydrogen Cyanide and Cyanide Salts Assessment
884 Cyanogen 460-19-5 3 20180927 Sep 27,2018 Noncancer Critical Updated the system value to other so it would show up in the advanced search.
885 Cyanogen 460-19-5 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
886 Cyanogen bromide 506-68-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
887 Cyclohexane 110-82-7 1 all IRIS summary first posted.
888 Cyclohexane 110-82-7 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
889 Cyclohexanone 108-94-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
890 Cyclohexylamine 108-91-8 1 None None
891 Cyclohexylamine 108-91-8 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
892 Cyhalothrin/Karate 68085-85-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
893 Cypermethrin 52315-07-8 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
894 Cypermethrin 52315-07-8 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
895 Cyromazine 66215-27-8 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
896 Cyromazine 66215-27-8 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
897 Dacthal 1861-32-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
898 Dalapon, sodium salt 75-99-0 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
899 Dalapon, sodium salt 75-99-0 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
900 Danitol 39515-41-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
901 2,2',3,3',4,4',5,5',6,6'-Decabromodiphenyl ether (BDE-209) 1163-19-5 1 20080630 Jun 30,2008 I., II., VI. RfD, RfC, and cancer assessment sections updated.
902 2,2',3,3',4,4',5,5',6,6'-Decabromodiphenyl ether (BDE-209) 1163-19-5 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
903 Demeton 8065-48-3 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
904 Demeton 8065-48-3 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
905 Di (2-ethylhexyl)phthalate (DEHP) 117-81-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
906 Di(2-ethylhexyl)adipate 103-23-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
907 2,4-Diaminotoluene 95-80-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
908 Diazomethane 334-88-3 1 20181219 Dec 19,2018 Archive Chemical IRIS Program requested that we archive assessments with no values.
909 Diazomethane 334-88-3 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
910 Dibenz[a,h]anthracene 53-70-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
911 Dibenzofuran 132-64-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
912 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
913 1,4-Dibromobenzene 106-37-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
914 Dibromochloromethane 124-48-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
915 Dibromodichloromethane 594-18-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
916 p,p'-Dibromodiphenyl ether 2050-47-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
917 1,2-Dibromoethane 106-93-4 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
918 Dibutyl phthalate (DBP) 84-74-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
919 Dicamba 1918-00-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
920 Dichloroacetic acid 79-43-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
921 1,4-Dichlorobenzene 106-46-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
922 1,3-Dichlorobenzene 541-73-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
923 1,2-Dichlorobenzene 95-50-1 1 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
924 1,2-Dichlorobenzene 95-50-1 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
925 3,3'-Dichlorobenzidine 91-94-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
926 Dichlorodifluoromethane 75-71-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
927 p,p'-Dichlorodiphenyl dichloroethane (DDD) 72-54-8 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
928 p,p'-Dichlorodiphenyl dichloroethane (DDD) 72-54-8 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
929 p,p'-Dichlorodiphenyldichloroethylene (DDE) 72-55-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
930 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 1 19870930 Sep 30,1987 I.A.6. Documentation changed
931 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 2 19880822 Aug 22,1988 II. Carcinogen summary on-line
932 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 3 19910101 Jan 1,1991 II. Text edited
933 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 4 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
934 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 5 19910501 May 1,1991 II.A.3. Change Lehman, 1952 to '1951'
935 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 6 19910501 May 1,1991 VI. Bibliography on-line
936 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 7 19920101 Jan 1,1992 I.A.7. Secondary contact changed
937 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 8 19920101 Jan 1,1992 IV. Regulatory actions updated
938 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 9 19960201 Feb 1,1996 I.A.7. Contact changed
939 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Office.
940 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 11 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
941 p,p'-Dichlorodiphenyltrichloroethane (DDT) 50-29-3 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
942 1,2-Dichloroethane 107-06-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
943 1,1-Dichloroethane 75-34-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
944 cis-1,2-Dichloroethylene 156-59-2 1 19901201 Dec 1,1990 II. Carcinogen assessment on-line
945 cis-1,2-Dichloroethylene 156-59-2 2 19901201 Dec 1,1990 VI. Bibliography on-line
946 cis-1,2-Dichloroethylene 156-59-2 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
947 cis-1,2-Dichloroethylene 156-59-2 4 19950201 Feb 1,1995 II.D.3. Primary contact changed
948 cis-1,2-Dichloroethylene 156-59-2 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
949 cis-1,2-Dichloroethylene 156-59-2 6 20021203 Dec 3,2002 II.D.2. Screening-Level Literature Review Findings message has been added.
950 cis-1,2-Dichloroethylene 156-59-2 7 20100930 Sep 30,2010 I., II., VI. RfD assessment added; RfC and cancer assessment sections revised.
951 cis-1,2-Dichloroethylene 156-59-2 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
952 trans-1,2-Dichloroethylene 156-60-5 1 19880926 Sep 26,1988 I.A. Oral RfD summary on-line
953 trans-1,2-Dichloroethylene 156-60-5 2 19890101 Jan 1,1989 I.A.7. Contact phone number corrected
954 trans-1,2-Dichloroethylene 156-60-5 3 19910301 Mar 1,1991 VI. Bibliography on-line
955 trans-1,2-Dichloroethylene 156-60-5 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
956 trans-1,2-Dichloroethylene 156-60-5 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
957 trans-1,2-Dichloroethylene 156-60-5 6 20021203 Dec 3,2002 I.A.6. Screening-Level Literature Review Findings message has been added
958 trans-1,2-Dichloroethylene 156-60-5 7 20100930 Sep 30,2010 I., II., VI. RfD assessment added; RfC and cancer assessment sections revised.
959 trans-1,2-Dichloroethylene 156-60-5 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
960 1,1-Dichloroethylene (1,1-DCE) 75-35-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
961 Dichloromethane 75-09-2 1 20111118 Nov 18,2011 I., II, VI. RfD and cancer assessment updated. RfC added.
962 Dichloromethane 75-09-2 2 19870420 Apr 20,1987 II.C.1. Unit Risk corrected from 4.1E-4 to 4.1E-6
963 Dichloromethane 75-09-2 3 19870521 May 21,1987 II.A.2. Missing text replaced in 3rd paragraph
964 Dichloromethane 75-09-2 4 19880301 Mar 1,1988 I.A.1. Dose conversion clarified
965 Dichloromethane 75-09-2 5 19880301 Mar 1,1988 I.A.2. Text revised
966 Dichloromethane 75-09-2 6 19880301 Mar 1,1988 II.B.3. Text revised
967 Dichloromethane 75-09-2 7 19880301 Mar 1,1988 II.B.4. Confidence statement revised
968 Dichloromethane 75-09-2 8 19880301 Mar 1,1988 II.C.3. Text revised
969 Dichloromethane 75-09-2 9 19880301 Mar 1,1988 II.C.4. Confidence statement revised
970 Dichloromethane 75-09-2 10 19880301 Mar 1,1988 II.D.3. Primary contact changed
971 Dichloromethane 75-09-2 11 19880301 Mar 1,1988 III.A. Health Advisory added
972 Dichloromethane 75-09-2 12 19890101 Jan 1,1989 II. Carcinogen summary noted as pending change
973 Dichloromethane 75-09-2 13 19891001 Oct 1,1989 II.B.3. Inhalation rate corrected in paragraph 1
974 Dichloromethane 75-09-2 14 19891001 Oct 1,1989 II.C.2. Dose corrections in mg/kg/day
975 Dichloromethane 75-09-2 15 19891001 Oct 1,1989 II.C.3. Inhalation rate corrected in paragraph 1
976 Dichloromethane 75-09-2 16 19891001 Oct 1,1989 II.D.3. Contacts phone number changed
977 Dichloromethane 75-09-2 17 19900801 Aug 1,1990 IV.F.1. EPA contact changed
978 Dichloromethane 75-09-2 18 19900901 Sep 1,1990 II. Carcinogen assessment revised following re-evaluation
979 Dichloromethane 75-09-2 19 19900901 Sep 1,1990 II.C.1. Inhalation unit risk changed
980 Dichloromethane 75-09-2 20 19900901 Sep 1,1990 VI. Bibliography on-line
981 Dichloromethane 75-09-2 21 19910101 Jan 1,1991 II.C.1. Paragraph moved to II.C.3.
982 Dichloromethane 75-09-2 22 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
983 Dichloromethane 75-09-2 23 19910801 Aug 1,1991 VI.C. Citations clarified
984 Dichloromethane 75-09-2 24 19910901 Sep 1,1991 I.B. Inhalation RfC now under review
985 Dichloromethane 75-09-2 25 19920101 Jan 1,1992 IV. Regulatory actions updated
986 Dichloromethane 75-09-2 26 19950201 Feb 1,1995 II.D.3. Primary contact changed
987 Dichloromethane 75-09-2 27 19950801 Aug 1,1995 I.B. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
988 Dichloromethane 75-09-2 28 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
989 Dichloromethane 75-09-2 29 20021203 Dec 3,2002 I.A.6., II.D.2. Screening-Level Literature Review Findings message has been added.
990 Dichloromethane 75-09-2 30 20030429 Apr 29,2003 II.D.2. Screening Level Literature Review findings revised.
991 Dichloromethane 75-09-2 31 20030730 Jul 30,2003 I., II. This chemical is being reassessed under the IRIS Program.
992 Dichloromethane 75-09-2 32 20180710 Jul 10,2018 Key Values Table A footnote was added for ADAF.
993 Dichloromethane 75-09-2 33 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
994 2,4-Dichlorophenol 120-83-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
995 4-(2,4-Dichlorophenoxy)butyric acid (2,4-DB) 94-82-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
996 2,4-Dichlorophenoxyacetic acid (2,4-D) 94-75-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
997 1,2-Dichloropropane 78-87-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
998 2,3-Dichloropropanol 616-23-9 1 None None
999 2,3-Dichloropropanol 616-23-9 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1000 1,3-Dichloropropene 542-75-6 1 19880926 Sep 26,1988 II. Carcinogen summary on-line
1001 1,3-Dichloropropene 542-75-6 2 19881201 Dec 1,1988 II.B.3. Text added
1002 1,3-Dichloropropene 542-75-6 3 19890301 Mar 1,1989 II.A.1. Text added
1003 1,3-Dichloropropene 542-75-6 4 19890301 Mar 1,1989 II.A.3. Text added
1004 1,3-Dichloropropene 542-75-6 5 19891001 Oct 1,1989 II.B. Oral quantitative risk estimate has been withdrawn
1005 1,3-Dichloropropene 542-75-6 6 19891001 Oct 1,1989 VI. Bibliography on-line
1006 1,3-Dichloropropene 542-75-6 7 19900901 Sep 1,1990 I.B. Inhalation RfC assessment now under review
1007 1,3-Dichloropropene 542-75-6 8 19901001 Oct 1,1990 I.A. Text edited
1008 1,3-Dichloropropene 542-75-6 9 19901001 Oct 1,1990 II. Text edited
1009 1,3-Dichloropropene 542-75-6 10 19910101 Jan 1,1991 I.B. Inhalation RfC summary on-line
1010 1,3-Dichloropropene 542-75-6 11 19910101 Jan 1,1991 VI.B. Inhalation RfC references added
1011 1,3-Dichloropropene 542-75-6 12 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1012 1,3-Dichloropropene 542-75-6 13 19930201 Feb 1,1993 III.A. Health Advisory on-line
1013 1,3-Dichloropropene 542-75-6 14 19930201 Feb 1,1993 VI.D. Health Advisory references on-line
1014 1,3-Dichloropropene 542-75-6 15 19930901 Sep 1,1993 II. Carcinogenicity assessment noted as pending change
1015 1,3-Dichloropropene 542-75-6 16 19930901 Sep 1,1993 II.D.2. Work group review date added
1016 1,3-Dichloropropene 542-75-6 17 19931001 Oct 1,1993 II.D.3. Primary contact changed; secondary's phone number changed
1017 1,3-Dichloropropene 542-75-6 18 19950801 Aug 1,1995 II., II.D.2. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1018 1,3-Dichloropropene 542-75-6 19 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Office for this information.
1019 1,3-Dichloropropene 542-75-6 20 20000525 May 25,2000 I.A. Revised RfD
1020 1,3-Dichloropropene 542-75-6 21 20000525 May 25,2000 I.B. Revised RfC
1021 1,3-Dichloropropene 542-75-6 22 20000525 May 25,2000 II. Revised carcinogen summary
1022 1,3-Dichloropropene 542-75-6 23 20000525 May 25,2000 II.A. Added oral cancer potency
1023 1,3-Dichloropropene 542-75-6 24 20000525 May 25,2000 II.B. Added inhalation cancer potency
1024 1,3-Dichloropropene 542-75-6 25 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1025 Dichlorvos 62-73-7 1 19880301 Mar 1,1988 I.A. NOAEL reevaluated-RfD changed
1026 Dichlorvos 62-73-7 2 19880301 Mar 1,1988 I.A.5. Confidence levels revised
1027 Dichlorvos 62-73-7 3 19881201 Dec 1,1988 I.A.1. Converted dose for NOEL added
1028 Dichlorvos 62-73-7 4 19881201 Dec 1,1988 I.A.4. Study 2) NOEL clarified
1029 Dichlorvos 62-73-7 5 19891001 Oct 1,1989 II. Carcinogen summary on-line
1030 Dichlorvos 62-73-7 6 19891201 Dec 1,1989 II.A.3. Correct Kettering Lab (1974) to Shell Chemical (1967)
1031 Dichlorvos 62-73-7 7 19891201 Dec 1,1989 II.A.4. Correct spelling: Setervaick to 'Segerbaeck'
1032 Dichlorvos 62-73-7 8 19891201 Dec 1,1989 II.B.2. Correct reference citations
1033 Dichlorvos 62-73-7 9 19891201 Dec 1,1989 VI. Bibliography on-line
1034 Dichlorvos 62-73-7 10 19920101 Jan 1,1992 II. Carcinogen assessment noted as pending change
1035 Dichlorvos 62-73-7 11 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1036 Dichlorvos 62-73-7 12 19920701 Jul 1,1992 I.A. Withdrawn; new RfD verified (in preparation)
1037 Dichlorvos 62-73-7 13 19920701 Jul 1,1992 VI.A. Oral RfD references withdrawn
1038 Dichlorvos 62-73-7 14 19921201 Dec 1,1992 I.B. Inhalation RfC now under review
1039 Dichlorvos 62-73-7 15 19931001 Oct 1,1993 II.D.3. Primary contact changed; secondary's phone number changed
1040 Dichlorvos 62-73-7 16 19931101 Nov 1,1993 I.A. Oral RfD summary replaced; RfD changed
1041 Dichlorvos 62-73-7 17 19931101 Nov 1,1993 VI.A. Oral RfD references replaced
1042 Dichlorvos 62-73-7 18 19940601 Jun 1,1994 I.B. Inhalation RfC on-line
1043 Dichlorvos 62-73-7 19 19940601 Jun 1,1994 VI.B. Inhalation RfC references on-line
1044 Dichlorvos 62-73-7 20 19941201 Dec 1,1994 II.A.3. Animal strain clarified in NCI, 1977 study
1045 Dichlorvos 62-73-7 21 19950601 Jun 1,1995 VI.C. NTP, 1986a,b reference year corrected
1046 Dichlorvos 62-73-7 22 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1047 Dichlorvos 62-73-7 23 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1048 Dichlorvos 62-73-7 24 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1049 Dicofol 115-32-2 1 19880822 Aug 22,1988 II. Carcinogen summary on-line
1050 Dicofol 115-32-2 2 19900101 Jan 1,1990 VI. Bibliography on-line
1051 Dicofol 115-32-2 3 19920101 Jan 1,1992 II. Carcinogen assessment noted as pending change
1052 Dicofol 115-32-2 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1053 Dicofol 115-32-2 5 19920401 Apr 1,1992 II. Carcinogen assessment withdrawn pending further review
1054 Dicofol 115-32-2 6 19920401 Apr 1,1992 IV. Withdrawn; no assessments on-line
1055 Dicofol 115-32-2 7 19920401 Apr 1,1992 VI. Bibliography withdrawn; no assessments on-line
1056 Dicofol 115-32-2 8 19920701 Jul 1,1992 II. Work gropu review dates added
1057 Dicofol 115-32-2 9 19930701 Jul 1,1993 II. EPA contact changed
1058 Dicofol 115-32-2 10 19950801 Aug 1,1995 II., IV., VI. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1059 Dicofol 115-32-2 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1060 Dicofol 115-32-2 12 20181210 Dec 10,2018 Archived Values Requested by the IRIS Program to archive the chemicals with null values.
1061 Dicofol 115-32-2 13 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1062 Dieldrin 60-57-1 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
1063 Dieldrin 60-57-1 2 19880907 Sep 7,1988 II. Carcinogen summary on-line
1064 Dieldrin 60-57-1 3 19900301 Mar 1,1990 II.A.2. Ditraglia citation clarified
1065 Dieldrin 60-57-1 4 19900301 Mar 1,1990 II.A.3. Reuber citation year and Deichman spelling corrected
1066 Dieldrin 60-57-1 5 19900301 Mar 1,1990 II.A.4. Shirasu citation year corrected
1067 Dieldrin 60-57-1 6 19900301 Mar 1,1990 II.B.2. Reuber citation year corrected
1068 Dieldrin 60-57-1 7 19900301 Mar 1,1990 VI. Bibliography on-line
1069 Dieldrin 60-57-1 8 19900401 Apr 1,1990 VI.C. Treon and Cleveland, 1955 citation corrected
1070 Dieldrin 60-57-1 9 19900901 Sep 1,1990 I.A. Text edited
1071 Dieldrin 60-57-1 10 19900901 Sep 1,1990 II. Text edited
1072 Dieldrin 60-57-1 11 19900901 Sep 1,1990 III.A. Health Advisory on-line
1073 Dieldrin 60-57-1 12 19900901 Sep 1,1990 VI. Health Advisory references on-line
1074 Dieldrin 60-57-1 13 19910101 Jan 1,1991 II. Text edited
1075 Dieldrin 60-57-1 14 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
1076 Dieldrin 60-57-1 15 19910101 Jan 1,1991 IV. Regulatory Action section on-line
1077 Dieldrin 60-57-1 16 19930701 Jul 1,1993 II.D.3. Secondary contact's phone number changed
1078 Dieldrin 60-57-1 17 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1079 Dieldrin 60-57-1 18 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
1080 Dieldrin 60-57-1 19 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
1081 Diesel engine exhaust None 1 19920701 Jul 1,1992 I.B. Inhalation RfC now under review
1082 Diesel engine exhaust None 2 19920801 Aug 1,1992 I.B.6. Work group review date added
1083 Diesel engine exhaust None 3 19930601 Jun 1,1993 I.B. Inhalation RfC on-line
1084 Diesel engine exhaust None 4 19930601 Jun 1,1993 VI.B. Inhalation RfC references on-line
1085 Diesel engine exhaust None 5 19930701 Jul 1,1993 VI.B. Minor correction made
1086 Diesel engine exhaust None 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1087 Diesel engine exhaust None 7 20030228 Feb 28,2003 All Complete revision based on new health assessment document
1088 Diesel engine exhaust None 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1089 Diethyl phthalate (DEP) 84-66-2 1 19880907 Sep 7,1988 II. Carcinogen summary on-line
1090 Diethyl phthalate (DEP) 84-66-2 2 19890801 Aug 1,1989 VI. Bibliography on-line
1091 Diethyl phthalate (DEP) 84-66-2 3 19910801 Aug 1,1991 I.A.7. Primary and secondary contects changed
1092 Diethyl phthalate (DEP) 84-66-2 4 19910801 Aug 1,1991 II.D.3. Primary and secondary contacts changed
1093 Diethyl phthalate (DEP) 84-66-2 5 19910801 Aug 1,1991 IV.F.1. EPA contact changed
1094 Diethyl phthalate (DEP) 84-66-2 6 19920101 Jan 1,1992 IV. Regulatory actions updated
1095 Diethyl phthalate (DEP) 84-66-2 7 19930201 Feb 1,1993 I.A.7. Primary contact changed
1096 Diethyl phthalate (DEP) 84-66-2 8 19930201 Feb 1,1993 II.D.3. Primary contact changed
1097 Diethyl phthalate (DEP) 84-66-2 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1098 Diethyl phthalate (DEP) 84-66-2 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1099 Diethyl sulfate 64-67-5 1 19911001 Oct 1,1991 I.B. Inhalation RfC now under review
1100 Diethyl sulfate 64-67-5 2 19911101 Nov 1,1991 I.B. Inhalation RfC message on-line
1101 Diethyl sulfate 64-67-5 3 19911101 Nov 1,1991 VI.B. Inhalation RfC references added
1102 Diethyl sulfate 64-67-5 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1103 Diethyl sulfate 64-67-5 5 20181219 Dec 19,2018 Archive Chemical IRIS Program requested that we archive assessments with no values.
1104 Diethyl sulfate 64-67-5 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1105 Diethyl-p-nitrophenylphosphate 311-45-5 1 19911001 Oct 1,1991 II. Carcinogenicy assessment now under review
1106 Diethyl-p-nitrophenylphosphate 311-45-5 2 19921001 Oct 1,1992 II. Carcinogenicity assessment on-line
1107 Diethyl-p-nitrophenylphosphate 311-45-5 3 19921001 Oct 1,1992 VI.C. Carcinogenicity references on-line
1108 Diethyl-p-nitrophenylphosphate 311-45-5 4 19921101 Nov 1,1992 VI.C. Spelling correction
1109 Diethyl-p-nitrophenylphosphate 311-45-5 5 19930701 Jul 1,1993 II.D.1. Other EPA Documentation heading removed
1110 Diethyl-p-nitrophenylphosphate 311-45-5 6 19961201 Dec 1,1996 II.D.3. Secondary contact removed
1111 Diethyl-p-nitrophenylphosphate 311-45-5 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1112 Diethyl-p-nitrophenylphosphate 311-45-5 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1113 Diethylene glycol dinitrate (DEGDN) 693-21-0 1 19920701 Jul 1,1992 II. Carcinogenicity assessment summary now under review
1114 Diethylene glycol dinitrate (DEGDN) 693-21-0 2 19930201 Feb 1,1993 II. Carcinogenicity assessment on-line
1115 Diethylene glycol dinitrate (DEGDN) 693-21-0 3 19930201 Feb 1,1993 VI.C. Carcinogenicity assessment references on-line
1116 Diethylene glycol dinitrate (DEGDN) 693-21-0 4 19930301 Mar 1,1993 VI.C. Minor correction
1117 Diethylene glycol dinitrate (DEGDN) 693-21-0 5 19930701 Jul 1,1993 II.D.1. Other EPA Documentation heading removed
1118 Diethylene glycol dinitrate (DEGDN) 693-21-0 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1119 Diethylene glycol dinitrate (DEGDN) 693-21-0 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1120 Difenzoquat 43222-48-6 1 19880822 Aug 22,1988 I.A. Oral RfD summary on-line
1121 Difenzoquat 43222-48-6 2 19891201 Dec 1,1989 VI. Bibliography on-line
1122 Difenzoquat 43222-48-6 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1123 Difenzoquat 43222-48-6 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1124 Difenzoquat 43222-48-6 5 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
1125 Difenzoquat 43222-48-6 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1126 Diflubenzuron 35367-38-5 1 19900901 Sep 1,1990 I.A. Principal study clarified
1127 Diflubenzuron 35367-38-5 2 19900901 Sep 1,1990 I.A.4. Citations added
1128 Diflubenzuron 35367-38-5 3 19900901 Sep 1,1990 VI. Bibliography on-line
1129 Diflubenzuron 35367-38-5 4 19920101 Jan 1,1992 IV. Regulatory actions updated
1130 Diflubenzuron 35367-38-5 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1131 Diflubenzuron 35367-38-5 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1132 1,1-Difluoroethane 75-37-6 1 19921001 Oct 1,1992 I.B. Inhalation RfC now under review
1133 1,1-Difluoroethane 75-37-6 2 19940901 Sep 1,1994 I.B. Inhalation RfC on-line
1134 1,1-Difluoroethane 75-37-6 3 19940901 Sep 1,1994 VI.B. Inhalation RfD references on-line
1135 1,1-Difluoroethane 75-37-6 4 19941001 Oct 1,1994 VI.B. Aviado and Belej, 1974 page number corrected
1136 1,1-Difluoroethane 75-37-6 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1137 1,1-Difluoroethane 75-37-6 6 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
1138 1,1-Difluoroethane 75-37-6 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1139 Diisobutyl phthalate (DIBP) 84-69-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1140 Diisononyl phthalate (DINP) 28553-12-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1141 Diisopropyl methylphosphonate (DIMP) 1445-75-6 1 19890301 Mar 1,1989 II. Carcinogen summary on-line
1142 Diisopropyl methylphosphonate (DIMP) 1445-75-6 2 19890401 Apr 1,1989 I.A. Oral RfD summary on-line
1143 Diisopropyl methylphosphonate (DIMP) 1445-75-6 3 19890401 Apr 1,1989 II.A.4. Citation year added
1144 Diisopropyl methylphosphonate (DIMP) 1445-75-6 4 19890401 Apr 1,1989 II.D.1. Corrected EPA citation year
1145 Diisopropyl methylphosphonate (DIMP) 1445-75-6 5 19890401 Apr 1,1989 II.D.1. Citation added
1146 Diisopropyl methylphosphonate (DIMP) 1445-75-6 6 19890701 Jul 1,1989 VI. Bibliography on-line
1147 Diisopropyl methylphosphonate (DIMP) 1445-75-6 7 19900601 Jun 1,1990 I.A. Text edited
1148 Diisopropyl methylphosphonate (DIMP) 1445-75-6 8 19900601 Jun 1,1990 I.A.7. Primary contact changed
1149 Diisopropyl methylphosphonate (DIMP) 1445-75-6 9 19900601 Jun 1,1990 II.A.2. Text added
1150 Diisopropyl methylphosphonate (DIMP) 1445-75-6 10 19901201 Dec 1,1990 III.A. Health Advisory on-line
1151 Diisopropyl methylphosphonate (DIMP) 1445-75-6 11 19901201 Dec 1,1990 VI.D. Health Advisory references added
1152 Diisopropyl methylphosphonate (DIMP) 1445-75-6 12 19920901 Sep 1,1992 II.D.3. Primary contact changed
1153 Diisopropyl methylphosphonate (DIMP) 1445-75-6 13 19930201 Feb 1,1993 I.A.7. Primary contact changed
1154 Diisopropyl methylphosphonate (DIMP) 1445-75-6 14 19930201 Feb 1,1993 II.D.3. Primary contact changed
1155 Diisopropyl methylphosphonate (DIMP) 1445-75-6 15 19930201 Feb 1,1993 II.A.10. Primary contact changed
1156 Diisopropyl methylphosphonate (DIMP) 1445-75-6 16 19930701 Jul 1,1993 II.D.1. EPA Documentation clarified
1157 Diisopropyl methylphosphonate (DIMP) 1445-75-6 17 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1158 Diisopropyl methylphosphonate (DIMP) 1445-75-6 18 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
1159 Diisopropyl methylphosphonate (DIMP) 1445-75-6 19 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1160 Dimethipin 55290-64-7 1 19880822 Aug 22,1988 II. Carcinogen summary on-line
1161 Dimethipin 55290-64-7 2 19900301 Mar 1,1990 I.A. NOTE added; assessment reevaluated - no RfD change
1162 Dimethipin 55290-64-7 3 19900501 May 1,1990 I.A. Reevaluated Oral RfD on-line - no RfD change
1163 Dimethipin 55290-64-7 4 19900501 May 1,1990 VI. Bibliography on-line
1164 Dimethipin 55290-64-7 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1165 Dimethipin 55290-64-7 6 19931001 Oct 1,1993 II.D.3. Primary contact changed; secondary's phone number changed
1166 Dimethipin 55290-64-7 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the approrpriate EPA Program Offices for this information.
1167 Dimethipin 55290-64-7 8 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
1168 Dimethipin 55290-64-7 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1169 Dimethoate 60-51-5 1 19880301 Mar 1,1988 I.A.4. New data entered
1170 Dimethoate 60-51-5 2 19880301 Mar 1,1988 I.A.5. Confidence levels revised
1171 Dimethoate 60-51-5 3 19880301 Mar 1,1988 I.A.6. Review dates added
1172 Dimethoate 60-51-5 4 19880301 Mar 1,1988 I.A.6. Documentation added
1173 Dimethoate 60-51-5 5 19880630 Jun 30,1988 I.A. RfD withdrawn
1174 Dimethoate 60-51-5 6 19880822 Aug 22,1988 I.A. Revised oral RfD summary added
1175 Dimethoate 60-51-5 7 19900901 Sep 1,1990 I.A.4. Citations added
1176 Dimethoate 60-51-5 8 19900901 Sep 1,1990 IV.F.1. EPA contact changed
1177 Dimethoate 60-51-5 9 19900901 Sep 1,1990 VI. Bibliography on-line
1178 Dimethoate 60-51-5 10 19920101 Jan 1,1992 IV. Regulatory actions updated
1179 Dimethoate 60-51-5 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1180 Dimethoate 60-51-5 12 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
1181 Dimethoate 60-51-5 13 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1182 Dimethyl phthalate 131-11-3 1 19880907 Sep 7,1988 II. Carcinogen summary on-line
1183 Dimethyl phthalate 131-11-3 2 19890401 Apr 1,1989 V. Supplementary data on-line
1184 Dimethyl phthalate 131-11-3 3 19900301 Mar 1,1990 VI. Bibliography on-line
1185 Dimethyl phthalate 131-11-3 4 19900901 Sep 1,1990 I.B. Not verified; data inadequate
1186 Dimethyl phthalate 131-11-3 5 19901001 Oct 1,1990 I.B. Inhalation RfC text modified
1187 Dimethyl phthalate 131-11-3 6 19901001 Oct 1,1990 VI.B. Bibliography on-line
1188 Dimethyl phthalate 131-11-3 7 19910801 Aug 1,1991 II.D.3. Primary and secondary contacts changed
1189 Dimethyl phthalate 131-11-3 8 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1190 Dimethyl phthalate 131-11-3 9 19930201 Feb 1,1993 II.D.3. Primary contact changed
1191 Dimethyl phthalate 131-11-3 10 19940301 Mar 1,1994 I.A. Work group review date added
1192 Dimethyl phthalate 131-11-3 11 19950801 Aug 1,1995 I.A. EPA's RfD/RfC and CRAVE workgroups were discontinured in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1193 Dimethyl phthalate 131-11-3 12 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1194 Dimethyl phthalate 131-11-3 13 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1195 Dimethyl sulfate 77-78-1 1 19880907 Sep 7,1988 II. Carcinogen summary on-line
1196 Dimethyl sulfate 77-78-1 2 19890401 Apr 1,1989 V. Supplementary data on-line
1197 Dimethyl sulfate 77-78-1 3 19900301 Mar 1,1990 VI. Bibliography on-line
1198 Dimethyl sulfate 77-78-1 4 19911001 Oct 1,1991 I.B. Inhalation RfD now under review
1199 Dimethyl sulfate 77-78-1 5 19920101 Jan 1,1992 I.B. Inhalation RfC on-line
1200 Dimethyl sulfate 77-78-1 6 19920101 Jan 1,1992 VI.B. Inhalation RfC reference added
1201 Dimethyl sulfate 77-78-1 7 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1202 Dimethyl sulfate 77-78-1 8 19940201 Feb 1,1994 II.D.3. Secondary contact's phone number changed
1203 Dimethyl sulfate 77-78-1 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1204 Dimethyl sulfate 77-78-1 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1205 Dimethyl terephthalate (DMT) 120-61-6 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
1206 Dimethyl terephthalate (DMT) 120-61-6 2 19890801 Aug 1,1989 VI. Biliography on-line
1207 Dimethyl terephthalate (DMT) 120-61-6 3 19920101 Jan 1,1992 I.A.7. Secondary contact changed
1208 Dimethyl terephthalate (DMT) 120-61-6 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1209 Dimethyl terephthalate (DMT) 120-61-6 5 19950201 Feb 1,1995 I.A.7. Secondary contact's name changed
1210 Dimethyl terephthalate (DMT) 120-61-6 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1211 Dimethyl terephthalate (DMT) 120-61-6 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1212 Dimethylamine 124-40-3 1 19900701 Jul 1,1990 I.B. Inhalation RfC summary on-line
1213 Dimethylamine 124-40-3 2 19900701 Jul 1,1990 VI. Bibliography on-line
1214 Dimethylamine 124-40-3 3 19910101 Jan 1,1991 I.B. Wtihdrawn; new inhalation RfC verified (in preparation)
1215 Dimethylamine 124-40-3 4 19910101 Jan 1,1991 VI. Bibliography withdrawn
1216 Dimethylamine 124-40-3 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1217 Dimethylamine 124-40-3 6 19950801 Aug 1,1995 I.B., VI. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in Septermber, 1995.
1218 Dimethylamine 124-40-3 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1219 Dimethylamine 124-40-3 8 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
1220 Dimethylamine 124-40-3 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1221 N-N-Dimethylaniline 121-69-7 1 19890801 Aug 1,1989 VI. Bibliography on-line
1222 N-N-Dimethylaniline 121-69-7 2 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1223 N-N-Dimethylaniline 121-69-7 3 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1224 3,3-Dimethylbenzidine 119-93-7 1 19910701 Jul 1,1991 I.B. Inhalation RfC message on-line
1225 3,3-Dimethylbenzidine 119-93-7 2 19910701 Jul 1,1991 VI. Bibliography on-line
1226 3,3-Dimethylbenzidine 119-93-7 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1227 3,3-Dimethylbenzidine 119-93-7 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1228 3,3-Dimethylbenzidine 119-93-7 5 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
1229 3,3-Dimethylbenzidine 119-93-7 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1230 N,N-Dimethylformamide 68-12-2 1 19901001 Oct 1,1990 I.B. Inhalation RfC summary on-line
1231 N,N-Dimethylformamide 68-12-2 2 19901001 Oct 1,1990 VI. Bibliography on-line
1232 N,N-Dimethylformamide 68-12-2 3 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1233 N,N-Dimethylformamide 68-12-2 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1234 2,4-Dimethylphenol 105-67-9 1 19901101 Nov 1,1990 I.A. Oral RfD summary on-line
1235 2,4-Dimethylphenol 105-67-9 2 19901101 Nov 1,1990 VI. Bibliography on-line
1236 2,4-Dimethylphenol 105-67-9 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1237 2,4-Dimethylphenol 105-67-9 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appriopriate EPA Program Offices for this information.
1238 2,4-Dimethylphenol 105-67-9 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1239 2,6-Dimethylphenol 576-26-1 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
1240 2,6-Dimethylphenol 576-26-1 2 19910301 Mar 1,1991 VI. Bibliography on-line
1241 2,6-Dimethylphenol 576-26-1 3 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1242 2,6-Dimethylphenol 576-26-1 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1243 3,4-Dimethylphenol 95-65-8 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
1244 3,4-Dimethylphenol 95-65-8 2 19890101 Jan 1,1989 I.A.7. Contacts phone numbers corrected
1245 3,4-Dimethylphenol 95-65-8 3 19910601 Jun 1,1991 VI. Bibliography on-line
1246 3,4-Dimethylphenol 95-65-8 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1247 3,4-Dimethylphenol 95-65-8 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1248 4,6-Dinitro-o-cyclohexyl phenol 131-89-5 1 19880822 Aug 22,1988 I.A. Oral RfD summary on-line
1249 4,6-Dinitro-o-cyclohexyl phenol 131-89-5 2 19890101 Jan 1,1989 I.A.7. Contacts phone numbers corrected
1250 4,6-Dinitro-o-cyclohexyl phenol 131-89-5 3 19910301 Mar 1,1991 VI. Bibliography on-line
1251 4,6-Dinitro-o-cyclohexyl phenol 131-89-5 4 19920101 Jan 1,1992 I.A.7. Secondary contact changed
1252 4,6-Dinitro-o-cyclohexyl phenol 131-89-5 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1253 4,6-Dinitro-o-cyclohexyl phenol 131-89-5 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1254 4,6-Dinitro-o-cyclohexyl phenol 131-89-5 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1255 o-Dinitrobenzene 528-29-0 1 19920501 May 1,1992 II. Carcinogenicity assessment now under review
1256 o-Dinitrobenzene 528-29-0 2 19920601 Jun 1,1992 Synonyms Synonyms added
1257 o-Dinitrobenzene 528-29-0 3 19920901 Sep 1,1992 II. Carcinogenicity assessment on-line
1258 o-Dinitrobenzene 528-29-0 4 19920901 Sep 1,1992 VI. Bibliography on-line
1259 o-Dinitrobenzene 528-29-0 5 19930701 Jul 1,1993 II.D.1. Other EPA Documentation heading removed
1260 o-Dinitrobenzene 528-29-0 6 19961201 Dec 1,1996 II.D.3. Primary contact removed
1261 o-Dinitrobenzene 528-29-0 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1262 o-Dinitrobenzene 528-29-0 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1263 m-Dinitrobenzene 99-65-0 1 19880822 Aug 22,1988 I.A. Oral RfD summary on-line
1264 m-Dinitrobenzene 99-65-0 2 19900701 Jul 1,1990 II. Carcinogen assessment now under review
1265 m-Dinitrobenzene 99-65-0 3 19910301 Mar 1,1991 II. Carcinogenicity assessment on-line
1266 m-Dinitrobenzene 99-65-0 4 19910301 Mar 1,1991 VI. Bibliography on-line
1267 m-Dinitrobenzene 99-65-0 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1268 m-Dinitrobenzene 99-65-0 6 19930201 Feb 1,1993 II.D.3. Primary contact changed
1269 m-Dinitrobenzene 99-65-0 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1270 m-Dinitrobenzene 99-65-0 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1271 2,4-Dinitrophenol 51-28-5 1 19880301 Mar 1,1988 I.A.3. Text corrected
1272 2,4-Dinitrophenol 51-28-5 2 19900301 Mar 1,1990 I.A.2. U.S. EPA, 1980 citation added
1273 2,4-Dinitrophenol 51-28-5 3 19900301 Mar 1,1990 VI. Bibliography on-line
1274 2,4-Dinitrophenol 51-28-5 4 19910701 Jul 1,1991 I.A. Oral RfD summary noted as pending change
1275 2,4-Dinitrophenol 51-28-5 5 19910701 Jul 1,1991 I.B. Inhalation RfC now under review
1276 2,4-Dinitrophenol 51-28-5 6 19911001 Oct 1,1991 I.B. Inhalation RfC message on-line
1277 2,4-Dinitrophenol 51-28-5 7 19911001 Oct 1,1991 VI.B. Inhalation RfC references added
1278 2,4-Dinitrophenol 51-28-5 8 19920101 Jan 1,1992 I.A.7. Secondary contact changed
1279 2,4-Dinitrophenol 51-28-5 9 19920101 Jan 1,1992 IV. Regulatory actions updated
1280 2,4-Dinitrophenol 51-28-5 10 19950801 Aug 1,1995 I.A. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1281 2,4-Dinitrophenol 51-28-5 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1282 2,4-Dinitrophenol 51-28-5 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1283 2,4-Dinitrotoluene 121-14-2 1 19910301 Mar 1,1991 I.B. Inhalation RfC message on-line
1284 2,4-Dinitrotoluene 121-14-2 2 19910301 Mar 1,1991 VI. Bibliography on-line
1285 2,4-Dinitrotoluene 121-14-2 3 19910901 Sep 1,1991 I.A. Oral RfD now under review
1286 2,4-Dinitrotoluene 121-14-2 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1287 2,4-Dinitrotoluene 121-14-2 5 19920601 Jun 1,1992 I.A. Oral RfD summary on-line
1288 2,4-Dinitrotoluene 121-14-2 6 19920601 Jun 1,1992 VI.A. Oral RfD references added
1289 2,4-Dinitrotoluene 121-14-2 7 19930201 Feb 1,1993 I.A.7. Primary contact changed
1290 2,4-Dinitrotoluene 121-14-2 8 19930301 Mar 1,1993 VI.D. Health Advisory on-line
1291 2,4-Dinitrotoluene 121-14-2 9 19930301 Mar 1,1993 III.A. Heatlh Advisory references on-line
1292 2,4-Dinitrotoluene 121-14-2 10 19930401 Apr 1,1993 VI.A. Oral RfD references corrected
1293 2,4-Dinitrotoluene 121-14-2 11 19900901 Sep 1,1990 II. Carcinogen assessment on-line
1294 2,4-Dinitrotoluene 121-14-2 12 19900901 Sep 1,1990 VI. Bibliography on-line
1295 2,4-Dinitrotoluene 121-14-2 13 19910801 Aug 1,1991 VI.C. Citations clarified
1296 2,4-Dinitrotoluene 121-14-2 14 19910801 Aug 1,1991 I.A. Oral RfD now under reivew
1297 2,4-Dinitrotoluene 121-14-2 15 19910901 Sep 1,1991 I.A. Oral RfD will be isomer-specific
1298 2,4-Dinitrotoluene 121-14-2 16 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1299 2,4-Dinitrotoluene 121-14-2 17 19950801 Aug 1,1995 I.A. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1300 2,4-Dinitrotoluene 121-14-2 18 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1301 2,4-Dinitrotoluene 121-14-2 19 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1302 2,4-/2,6-Dinitrotoluene mixture Various 1 19900901 Sep 1,1990 II. Carcinogen assessment on-line
1303 2,4-/2,6-Dinitrotoluene mixture Various 2 19900901 Sep 1,1990 VI. Bibliography on-line
1304 2,4-/2,6-Dinitrotoluene mixture Various 3 19910801 Aug 1,1991 VI.C. Citations clarified
1305 2,4-/2,6-Dinitrotoluene mixture Various 4 19910801 Aug 1,1991 I.A. Oral RfD now under reivew
1306 2,4-/2,6-Dinitrotoluene mixture Various 5 19910901 Sep 1,1991 I.A. Oral RfD will be isomer-specific
1307 2,4-/2,6-Dinitrotoluene mixture Various 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1308 2,4-/2,6-Dinitrotoluene mixture Various 7 19950801 Aug 1,1995 I.A. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1309 2,4-/2,6-Dinitrotoluene mixture Various 8 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1310 2,4-/2,6-Dinitrotoluene mixture Various 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1311 Dinoseb 88-85-7 1 19890601 Jun 1,1989 I.A.6. Work group review dates added
1312 Dinoseb 88-85-7 2 19890601 Jun 1,1989 II. Carcinogen assessment now under review
1313 Dinoseb 88-85-7 3 19890801 Aug 1,1989 I.A. Principal study citation corrected
1314 Dinoseb 88-85-7 4 19890801 Aug 1,1989 I.A.4. Citations added
1315 Dinoseb 88-85-7 5 19890801 Aug 1,1989 II. Carcinogen summary on-line
1316 Dinoseb 88-85-7 6 19890801 Aug 1,1989 VI. Bibliography on-line
1317 Dinoseb 88-85-7 7 19900601 Jun 1,1990 I.A. Text edited
1318 Dinoseb 88-85-7 8 19900601 Jun 1,1990 II. Text edited
1319 Dinoseb 88-85-7 9 19910301 Mar 1,1991 II.D.3. Secondary contact changed
1320 Dinoseb 88-85-7 10 19910301 Mar 1,1991 IV.F.1. EPA contact changed
1321 Dinoseb 88-85-7 11 19920101 Jan 1,1992 IV. Regulatory actions updated
1322 Dinoseb 88-85-7 12 19930701 Jul 1,1993 II.D.2. Missing work group review date added
1323 Dinoseb 88-85-7 13 19950801 Aug 1,1995 I.A.6., II.D.2. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by Septmber 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1324 Dinoseb 88-85-7 14 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1325 Dinoseb 88-85-7 15 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
1326 Dinoseb 88-85-7 16 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1327 1,4-Dioxane 123-91-1 1 19880822 Aug 22,1988 II. Carcinogen summary on-line
1328 1,4-Dioxane 123-91-1 10 20100811 Aug 11,2010 I., II., VI. RfD and cancer assessment updated RfC discussion added.
1329 1,4-Dioxane 123-91-1 11 20100811 Aug 11,2010 NA %3Ca href=%22http://cfpub.epa.gov/ncea/iris_drafts/archiveDrafts.cfm#D_form%22%3EArchived review drafts and comments from the development of the oral assessment%3C/a%3E are available.
1330 1,4-Dioxane 123-91-1 12 20130920 Sep 20,2013 None Added RfC and inhalation cancer assessment.
1331 1,4-Dioxane 123-91-1 13 20130920 Sep 20,2013 NA Archived review drafts and comments from the development of this assessment are available. Archived version of the 2010 final oral assessment is available (%3Ca href=%22http://hero.epa.gov/index.cfm?action=search.view&reference_id=625580%22%3EU.S. EPA, 2010%3C/a%3E).
1332 1,4-Dioxane 123-91-1 14 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1333 Diphenamid 957-51-7 1 19890401 Apr 1,1989 III. Health Advisory on-line
1334 Diphenamid 957-51-7 2 19910301 Mar 1,1991 I.A. Principal study year corrected
1335 Diphenamid 957-51-7 3 19910301 Mar 1,1991 I.A.4. Citations added
1336 Diphenamid 957-51-7 4 19910301 Mar 1,1991 III.A.5. Principal study year corrected
1337 Diphenamid 957-51-7 5 19910301 Mar 1,1991 VI. Bibliography on-line
1338 Diphenamid 957-51-7 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1339 Diphenamid 957-51-7 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1340 Diphenamid 957-51-7 8 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
1341 Diphenamid 957-51-7 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1342 Diphenylamine 122-39-4 1 19870930 Sep 30,1987 All CASRN corrected
1343 Diphenylamine 122-39-4 2 19900901 Sep 1,1990 I.A.4. Citations added
1344 Diphenylamine 122-39-4 3 19900901 Sep 1,1990 IV.F.1. EPA contact changed
1345 Diphenylamine 122-39-4 4 19900901 Sep 1,1990 VI. Bibliography on-line
1346 Diphenylamine 122-39-4 5 19920101 Jan 1,1992 IV. Regulatory actions updated
1347 Diphenylamine 122-39-4 6 19920701 Jul 1,1992 II. Carcinogen assessment summary now under review
1348 Diphenylamine 122-39-4 7 19930301 Mar 1,1993 III.A. Health Advisory on-line
1349 Diphenylamine 122-39-4 8 19930301 Mar 1,1993 VI.D. Health Advisory references on-line
1350 Diphenylamine 122-39-4 9 19930401 Apr 1,1993 VI.A. Oral RfD reference corrected
1351 Diphenylamine 122-39-4 10 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1352 Diphenylamine 122-39-4 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1353 Diphenylamine 122-39-4 12 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
1354 Diphenylamine 122-39-4 13 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1355 1,2-Diphenylhydrazine 122-66-7 1 19870331 Mar 31,1987 IV. RQ added
1356 1,2-Diphenylhydrazine 122-66-7 2 19880301 Mar 1,1988 II.B.1. Number rounded off
1357 1,2-Diphenylhydrazine 122-66-7 3 19880301 Mar 1,1988 II.B.3. Text revised
1358 1,2-Diphenylhydrazine 122-66-7 4 19880301 Mar 1,1988 II.B.4. Confidence statement revised
1359 1,2-Diphenylhydrazine 122-66-7 5 19880301 Mar 1,1988 II.C.1. Number rounded off
1360 1,2-Diphenylhydrazine 122-66-7 6 19880301 Mar 1,1988 II.C.4. Text revised
1361 1,2-Diphenylhydrazine 122-66-7 7 19880301 Mar 1,1988 II.D.3. Primary contact changed
1362 1,2-Diphenylhydrazine 122-66-7 8 19890801 Aug 1,1989 VI. Bibliography on-line
1363 1,2-Diphenylhydrazine 122-66-7 9 19910101 Jan 1,1991 II. Text edited
1364 1,2-Diphenylhydrazine 122-66-7 10 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
1365 1,2-Diphenylhydrazine 122-66-7 11 19911001 Oct 1,1991 I.B. Inhalation RfC now under review
1366 1,2-Diphenylhydrazine 122-66-7 12 19911101 Nov 1,1991 I.B. Inhalation RfC message on-line
1367 1,2-Diphenylhydrazine 122-66-7 13 19911101 Nov 1,1991 VI.B. Inhalation references added
1368 1,2-Diphenylhydrazine 122-66-7 14 19920101 Jan 1,1992 IV. Regulatory actions updated
1369 1,2-Diphenylhydrazine 122-66-7 15 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1370 1,2-Diphenylhydrazine 122-66-7 16 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1371 Diquat 2764-72-9 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
1372 Diquat 2764-72-9 2 19890901 Sep 1,1989 II. Carcinogen assessment now under review
1373 Diquat 2764-72-9 3 19900901 Sep 1,1990 I.A. Principal study clarified
1374 Diquat 2764-72-9 4 19900901 Sep 1,1990 I.A.4. Citations added
1375 Diquat 2764-72-9 5 19900901 Sep 1,1990 VI. Bibliography on-line
1376 Diquat 2764-72-9 6 19920101 Jan 1,1992 IV. Regulatory actions updated
1377 Diquat 2764-72-9 7 19940201 Feb 1,1994 I.A.1. Critical dose and NOAEL(ADJ) corrected
1378 Diquat 2764-72-9 8 19950101 Jan 1,1995 I.A. Oral RfD noted as pending change
1379 Diquat 2764-72-9 9 19950101 Jan 1,1995 I.A.6. Work group review date added
1380 Diquat 2764-72-9 10 19950801 Aug 1,1995 I.A., I.A.6., II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1381 Diquat 2764-72-9 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1382 Diquat 2764-72-9 12 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
1383 Diquat 2764-72-9 13 20200929 Sep 29,2020 CASRN Based on a request from CCTE and OLEM, the IRIS program updated the CASRN from 85-00-7 to 2764-72-9, and updated the IRIS Summary to correct an error with the original summary page. Also corrected the Chemicals Dashboard link.
1384 Disulfoton 298-04-4 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
1385 Disulfoton 298-04-4 2 19900201 Feb 1,1990 VI. Bibliography on-line
1386 Disulfoton 298-04-4 3 19920101 Jan 1,1992 IV. Regulatory actions updated
1387 Disulfoton 298-04-4 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1388 Disulfoton 298-04-4 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1389 1,4-Dithiane 505-29-3 1 19910301 Mar 1,1991 II. Carcinogenicity assessment on-line
1390 1,4-Dithiane 505-29-3 2 19910301 Mar 1,1991 VI. Bibliography on-line
1391 1,4-Dithiane 505-29-3 3 19920801 Aug 1,1992 I.A. Oral RfD now under review
1392 1,4-Dithiane 505-29-3 4 19930201 Feb 1,1993 II.D.3. Primary contact changed
1393 1,4-Dithiane 505-29-3 5 19930301 Mar 1,1993 I.A. Oral RfD summary on-line
1394 1,4-Dithiane 505-29-3 6 19930301 Mar 1,1993 III.A. Health Advisory on-line
1395 1,4-Dithiane 505-29-3 7 19930301 Mar 1,1993 VI.A. Oral RfD references on-line
1396 1,4-Dithiane 505-29-3 8 19930301 Mar 1,1993 VI.D. Health Advisory references on-line
1397 1,4-Dithiane 505-29-3 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1398 1,4-Dithiane 505-29-3 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1399 Diuron 330-54-1 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
1400 Diuron 330-54-1 2 19880822 Aug 22,1988 I.A.1. Oral RfD corrected
1401 Diuron 330-54-1 3 19891201 Dec 1,1989 VI. Bibliography on-line
1402 Diuron 330-54-1 4 19901001 Oct 1,1990 III.A. Health Advisory on-line
1403 Diuron 330-54-1 5 19901001 Oct 1,1990 VI.D. Health Advisory references added
1404 Diuron 330-54-1 6 19920101 Jan 1,1992 IV. Regulatory actions updated
1405 Diuron 330-54-1 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1406 Diuron 330-54-1 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1407 Dodine 2439-10-3 1 19900901 Sep 1,1990 I.A.4. Citations added
1408 Dodine 2439-10-3 2 19900901 Sep 1,1990 VI. Bibliography on-line
1409 Dodine 2439-10-3 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1410 Dodine 2439-10-3 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1411 Dodine 2439-10-3 5 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
1412 Dodine 2439-10-3 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1413 Endosulfan 115-29-7 1 19890701 Jul 1,1989 I.A.2. MRID numbers added to principal study
1414 Endosulfan 115-29-7 2 19890701 Jul 1,1989 I.A.4. Citations added
1415 Endosulfan 115-29-7 3 19890701 Jul 1,1989 VI. Bibliography on-line
1416 Endosulfan 115-29-7 4 19920101 Jan 1,1992 IV. Regulatory actions updated
1417 Endosulfan 115-29-7 5 19921201 Dec 1,1992 I.A. Withdrawn; new Oral RfD verified (in preparation)
1418 Endosulfan 115-29-7 6 19921201 Dec 1,1992 VI.A. Oral RfD references withdrawn
1419 Endosulfan 115-29-7 7 19930501 May 1,1993 I.A. Work group review date added
1420 Endosulfan 115-29-7 8 19940701 Jul 1,1994 II. Carcinogenicity assessment now under review
1421 Endosulfan 115-29-7 9 19941001 Oct 1,1994 I.A. Oral RfD summary replaced; new RfD
1422 Endosulfan 115-29-7 10 19941001 Oct 1,1994 VI.A. Oral RfD references replaced
1423 Endosulfan 115-29-7 11 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1424 Endosulfan 115-29-7 12 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1425 Endosulfan 115-29-7 13 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1426 Endothall 145-73-3 1 19910301 Mar 1,1991 I.A.4. Citations added
1427 Endothall 145-73-3 2 19910301 Mar 1,1991 VI. Bibliography on-line
1428 Endothall 145-73-3 3 19910901 Sep 1,1991 II. Carcinogenicity assessment now under review
1429 Endothall 145-73-3 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1430 Endothall 145-73-3 5 19920701 Jul 1,1992 III.A. Health Advisory on-line
1431 Endothall 145-73-3 6 19920701 Jul 1,1992 VI.D. Health Advisory references on-line
1432 Endothall 145-73-3 7 19920801 Aug 1,1992 III.A.5. Text clarified
1433 Endothall 145-73-3 8 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1434 Endothall 145-73-3 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1435 Endothall 145-73-3 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1436 Endrin 72-20-8 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
1437 Endrin 72-20-8 2 19890401 Apr 1,1989 V. Supplementary data on-line
1438 Endrin 72-20-8 3 19890801 Aug 1,1989 VI. Bibliography on-line
1439 Endrin 72-20-8 4 19891001 Oct 1,1989 II. Carcinogen summary on-line
1440 Endrin 72-20-8 5 19891001 Oct 1,1989 VI.C. Carcinogen references added
1441 Endrin 72-20-8 6 19910401 Apr 1,1991 I.A. Secondary contact changed
1442 Endrin 72-20-8 7 19910401 Apr 1,1991 II. Primary contact changed
1443 Endrin 72-20-8 8 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1444 Endrin 72-20-8 9 19930701 Jul 1,1993 II.D.1. EPA Documentation clarified
1445 Endrin 72-20-8 10 19930701 Jul 1,1993 VI.C. EPA references clarified
1446 Endrin 72-20-8 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1447 Endrin 72-20-8 12 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
1448 Endrin 72-20-8 13 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1449 Epichlorohydrin 106-89-8 1 19870930 Sep 30,1987 V. Supplementary Data section added
1450 Epichlorohydrin 106-89-8 2 19880301 Mar 1,1988 I.A.1. Dose conversion factor corrected
1451 Epichlorohydrin 106-89-8 3 19880301 Mar 1,1988 I.A.2. Text clarified
1452 Epichlorohydrin 106-89-8 4 19880301 Mar 1,1988 II.B.1. Number rounded off
1453 Epichlorohydrin 106-89-8 5 19880301 Mar 1,1988 II.B.3. Text revised
1454 Epichlorohydrin 106-89-8 6 19880301 Mar 1,1988 II.B.4. Confidence statement revised
1455 Epichlorohydrin 106-89-8 7 19880301 Mar 1,1988 II.C. Slope factor changed
1456 Epichlorohydrin 106-89-8 8 19880301 Mar 1,1988 II.C.1. Number rounded off
1457 Epichlorohydrin 106-89-8 9 19880301 Mar 1,1988 II.C.3. Text revised
1458 Epichlorohydrin 106-89-8 10 19880301 Mar 1,1988 II.C.4. Confidence statement revised
1459 Epichlorohydrin 106-89-8 11 19880301 Mar 1,1988 III.A. Health Advisory added
1460 Epichlorohydrin 106-89-8 12 19880630 Jun 30,1988 II.D.1. Documentation corrected
1461 Epichlorohydrin 106-89-8 13 19890601 Jun 1,1989 I.A.6. Work group review date added
1462 Epichlorohydrin 106-89-8 14 19891001 Oct 1,1989 I.B. Inhalation RfC now under review
1463 Epichlorohydrin 106-89-8 15 19900201 Feb 1,1990 II.A.2. Shellenberger et al., 1979 spelling corrected
1464 Epichlorohydrin 106-89-8 16 19900201 Feb 1,1990 VI. Bibliography on-line
1465 Epichlorohydrin 106-89-8 17 19900601 Jun 1,1990 IV.A.1. Area code for EPA contact corrected
1466 Epichlorohydrin 106-89-8 18 19900801 Aug 1,1990 III.A.10. Primary contact changed
1467 Epichlorohydrin 106-89-8 19 19910101 Jan 1,1991 II. Text edited
1468 Epichlorohydrin 106-89-8 20 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
1469 Epichlorohydrin 106-89-8 21 19910901 Sep 1,1991 I.A. Oral RfD summary noted as pending change
1470 Epichlorohydrin 106-89-8 22 19920101 Jan 1,1992 I.A.7. Secondary contact changed
1471 Epichlorohydrin 106-89-8 23 19920101 Jan 1,1992 IV. Regulatory actions updated
1472 Epichlorohydrin 106-89-8 24 19920401 Apr 1,1992 I.A. Oral RfD summary withdrawn pending further review
1473 Epichlorohydrin 106-89-8 25 19920401 Apr 1,1992 I.B. Inhalation RfC summary on-line
1474 Epichlorohydrin 106-89-8 26 19920401 Apr 1,1992 IV.A.1. CAA regulatory action withdrawn
1475 Epichlorohydrin 106-89-8 27 19920401 Apr 1,1992 VI.A. Oral RfD references withdrawn
1476 Epichlorohydrin 106-89-8 28 19920401 Apr 1,1992 VI.B. Inhalation RfC references added
1477 Epichlorohydrin 106-89-8 29 19920601 Jun 1,1992 III.A.5. DWEL withdrawn
1478 Epichlorohydrin 106-89-8 30 19940201 Feb 1,1994 II.D.3. Secondary contact's phone number changed
1479 Epichlorohydrin 106-89-8 31 19950801 Aug 1,1995 I.A., I.A.6., VI.A. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1480 Epichlorohydrin 106-89-8 32 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1481 Epichlorohydrin 106-89-8 33 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1482 1,2-Epoxybutane (EBU) 106-88-7 1 19920101 Jan 1,1992 I.B. Inhalation RfC now under review
1483 1,2-Epoxybutane (EBU) 106-88-7 2 19920501 May 1,1992 I.B. Inhalation RfC on-line
1484 1,2-Epoxybutane (EBU) 106-88-7 3 19920501 May 1,1992 VI.B. Bibliography on-line
1485 1,2-Epoxybutane (EBU) 106-88-7 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1486 1,2-Epoxybutane (EBU) 106-88-7 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1487 Ethephon 16672-87-0 1 19880822 Aug 22,1988 I.A. Oral RfD summary on-line
1488 Ethephon 16672-87-0 2 19910301 Mar 1,1991 I.A.4. Citations added
1489 Ethephon 16672-87-0 3 19910301 Mar 1,1991 VI. Bibliography on-line
1490 Ethephon 16672-87-0 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1491 Ethephon 16672-87-0 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1492 Ethephon 16672-87-0 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1493 Ethion 563-12-2 1 19890201 Feb 1,1989 I.A. Critical study citation year added
1494 Ethion 563-12-2 2 19890601 Jun 1,1989 I.A. Withdrawn; new Oral RfD verified (in preparation)
1495 Ethion 563-12-2 3 19890901 Sep 1,1989 I.A. Oral RfD summary on-line; RfD changed
1496 Ethion 563-12-2 4 19890901 Sep 1,1989 VI. Bibliography on-line
1497 Ethion 563-12-2 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1498 Ethion 563-12-2 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1499 Ethion 563-12-2 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1500 2-Ethoxyethanol 110-80-5 1 19910501 May 1,1991 I.B. Inhalation RfC summary on-line
1501 2-Ethoxyethanol 110-80-5 2 19910501 May 1,1991 VI. Bibliography on-line
1502 2-Ethoxyethanol 110-80-5 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1503 2-Ethoxyethanol 110-80-5 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1504 2-Ethoxyethanol 110-80-5 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1505 Ethyl Tertiary Butyl Ether (ETBE) 637-92-3 1 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
1506 Ethyl Tertiary Butyl Ether (ETBE) 637-92-3 2 20210813 Aug 13,2021 All EPA completed a reassessment, updating all values. There is no value for cancer oral as there was inadequate evidence to derive a value.
1507 Ethyl Tertiary Butyl Ether (ETBE) 637-92-3 3 20210816 Aug 16,2021 All Correction edits to the values after release.
1508 Ethyl acetate 141-78-6 1 19890801 Aug 1,1989 VI. Bibliography on-line
1509 Ethyl acetate 141-78-6 2 19920101 Jan 1,1992 I.A.7. Primary contact changed
1510 Ethyl acetate 141-78-6 3 19920101 Jan 1,1992 IV. Regulatory actions updated
1511 Ethyl acetate 141-78-6 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1512 Ethyl acetate 141-78-6 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1513 Ethyl carbamate 51-79-6 1 19920101 Jan 1,1992 I.B. Inhalation RfC now under review
1514 Ethyl carbamate 51-79-6 2 19920401 Apr 1,1992 I.B. Inhalation RfC message on-line
1515 Ethyl carbamate 51-79-6 3 19920401 Apr 1,1992 VI. Bibliography on-line
1516 Ethyl carbamate 51-79-6 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1517 Ethyl carbamate 51-79-6 5 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
1518 Ethyl carbamate 51-79-6 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1519 Ethyl chloride 75-00-3 1 19910401 Apr 1,1991 I.B. Inhalation RfC summary on-line
1520 Ethyl chloride 75-00-3 2 19910401 Apr 1,1991 VI. Bibliography on-line
1521 Ethyl chloride 75-00-3 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1522 Ethyl chloride 75-00-3 4 19950101 Jan 1,1995 II. Carcinogenicity assessment now under review
1523 Ethyl chloride 75-00-3 5 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken our os IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in Septermber, 1995.
1524 Ethyl chloride 75-00-3 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1525 Ethyl chloride 75-00-3 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1526 S-Ethyl dipropylthiocarbamate (EPTC) 759-94-4 1 19900901 Sep 1,1990 I.A.4. Citations added
1527 S-Ethyl dipropylthiocarbamate (EPTC) 759-94-4 2 19900901 Sep 1,1990 VI. Bibliography on-line
1528 S-Ethyl dipropylthiocarbamate (EPTC) 759-94-4 3 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1529 S-Ethyl dipropylthiocarbamate (EPTC) 759-94-4 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1530 Ethyl ether 60-29-7 1 19900901 Sep 1,1990 I.A. Oral RfD summary on-line
1531 Ethyl ether 60-29-7 2 19900901 Sep 1,1990 VI. Bibliography on-line
1532 Ethyl ether 60-29-7 3 19910701 Jul 1,1991 I.A.7. Primary and secondary contacts changed
1533 Ethyl ether 60-29-7 4 19930701 Jul 1,1993 I.A.6. Source Document and Other EPA Documentation clarified
1534 Ethyl ether 60-29-7 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1535 Ethyl ether 60-29-7 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1536 Ethyl p-nitrophenyl phenylphosphorothioate (EPN) 2104-64-5 1 19910301 Mar 1,1991 I.A.4. Citations added
1537 Ethyl p-nitrophenyl phenylphosphorothioate (EPN) 2104-64-5 2 19910301 Mar 1,1991 VI. Bibliography on-line
1538 Ethyl p-nitrophenyl phenylphosphorothioate (EPN) 2104-64-5 3 19910401 Apr 1,1991 VI.A. MRID numbers added to citations
1539 Ethyl p-nitrophenyl phenylphosphorothioate (EPN) 2104-64-5 4 19920101 Jan 1,1992 IV. Regulatory actions updated
1540 Ethyl p-nitrophenyl phenylphosphorothioate (EPN) 2104-64-5 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1541 Ethyl p-nitrophenyl phenylphosphorothioate (EPN) 2104-64-5 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1542 Ethylbenzene 100-41-4 1 19880301 Mar 1,1988 I.A.1. Dose conversion clarified
1543 Ethylbenzene 100-41-4 2 19880301 Mar 1,1988 I.A.6. Documentation revised
1544 Ethylbenzene 100-41-4 3 19880301 Mar 1,1988 III.A. Health Advisory added
1545 Ethylbenzene 100-41-4 4 19880907 Sep 7,1988 II. Carcinogen summary on-line
1546 Ethylbenzene 100-41-4 5 19890801 Aug 1,1989 VI. Bibliography on-line
1547 Ethylbenzene 100-41-4 6 19900801 Aug 1,1990 IV.F.1. EPA contact changed
1548 Ethylbenzene 100-41-4 7 19901001 Oct 1,1990 I.B. Inhalation RfC now under review
1549 Ethylbenzene 100-41-4 8 19910301 Mar 1,1991 I.B. Inhalation RfC summary on-line
1550 Ethylbenzene 100-41-4 9 19910301 Mar 1,1991 VI.B. Inhalation RfC references added
1551 Ethylbenzene 100-41-4 10 19910601 Jun 1,1991 I.A.7. Primary contact changed
1552 Ethylbenzene 100-41-4 11 19910801 Aug 1,1991 II.D.3. Secondary contact changed
1553 Ethylbenzene 100-41-4 12 19920101 Jan 1,1992 I.A.7. Secondary contact changed
1554 Ethylbenzene 100-41-4 13 19920101 Jan 1,1992 IV. Regulatory actions updated
1555 Ethylbenzene 100-41-4 14 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1556 Ethylbenzene 100-41-4 15 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
1557 Ethylbenzene 100-41-4 16 20181220 Dec 20,2018 All EPA suspended the development of this assessment.
1558 Ethylbenzene 100-41-4 17 20210628 Jun 28,2021 All EPA removed the suspension and restarted the development of an update of this assessment.
1559 Ethylene diamine 107-15-3 1 19910501 May 1,1991 I.B. Inhalation RfC message on-line
1560 Ethylene diamine 107-15-3 2 19910501 May 1,1991 VI. Bibliography on-line
1561 Ethylene diamine 107-15-3 3 19910901 Sep 1,1991 II. Carcinogenicity assessment now under review
1562 Ethylene diamine 107-15-3 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1563 Ethylene diamine 107-15-3 5 19921101 Nov 1,1992 II. Carcinogenicity assessment on-line
1564 Ethylene diamine 107-15-3 6 19921101 Nov 1,1992 VI.C. Carcinogenicity references on-line
1565 Ethylene diamine 107-15-3 7 19921201 Dec 1,1992 VI.C. Slesinski reference clarified
1566 Ethylene diamine 107-15-3 8 19930701 Jul 1,1993 II.D.1. Other EPA Documentation heading removed
1567 Ethylene diamine 107-15-3 9 19961201 Dec 1,1996 II.D.3. Secondary contact removed
1568 Ethylene diamine 107-15-3 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1569 Ethylene diamine 107-15-3 11 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1570 Ethylene glycol 107-21-1 1 19890901 Sep 1,1989 I.A. Clarified DePass (1986) & DePass et al. (1986) refs
1571 Ethylene glycol 107-21-1 2 19890901 Sep 1,1989 VI. Bibliography on-line
1572 Ethylene glycol 107-21-1 3 19920101 Jan 1,1992 I.A.7. Secondary contact changed
1573 Ethylene glycol 107-21-1 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1574 Ethylene glycol 107-21-1 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1575 Ethylene glycol 107-21-1 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1576 Ethylene glycol monobutyl ether (EGBE) (2-Butoxyethanol) 111-76-2 1 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advirsories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1577 Ethylene glycol monobutyl ether (EGBE) (2-Butoxyethanol) 111-76-2 2 19991230 Dec 30,1999 I...VI RfD, RfC, and carcinogenicity assessment first on line
1578 Ethylene glycol monobutyl ether (EGBE) (2-Butoxyethanol) 111-76-2 5 20100331 Mar 31,2010 I., II., VI. RfD, RfC, and cancer assessment sections updated.
1579 Ethylene glycol monobutyl ether (EGBE) (2-Butoxyethanol) 111-76-2 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1580 Ethylene oxide 75-21-8 1 20180516 May 16,2018 WOE Footnote Added the ADAF footnote to the WOE basis decription.
1581 Ethylene oxide 75-21-8 2 20180628 Jun 28,2018 IRIS Summary Renamed the IRIS Summary to Executive summary to match the attachment.
1582 Ethylene oxide 75-21-8 3 20180710 Jul 10,2018 Key Values Table A footnote was added for ADAF.
1583 Ethylene oxide 75-21-8 4 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
1584 Ethylene thiourea (ETU) 96-45-7 1 19910501 May 1,1991 I.A. Oral RfD summary now on-line
1585 Ethylene thiourea (ETU) 96-45-7 2 19910501 May 1,1991 VI. Bibliography on-line
1586 Ethylene thiourea (ETU) 96-45-7 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1587 Ethylene thiourea (ETU) 96-45-7 4 19920701 Jul 1,1992 I.A.6. Oral RfD source references corrected
1588 Ethylene thiourea (ETU) 96-45-7 5 19920701 Jul 1,1992 VI.A. Oral RfD references corrected
1589 Ethylene thiourea (ETU) 96-45-7 6 19920901 Sep 1,1992 I.B. Inhalation RfC now under review
1590 Ethylene thiourea (ETU) 96-45-7 7 19930901 Sep 1,1993 II. Carcinogenicity assessment now under review
1591 Ethylene thiourea (ETU) 96-45-7 8 19940201 Feb 1,1994 I.A.1. NOAEL and LOAEL were reversed; corrected
1592 Ethylene thiourea (ETU) 96-45-7 9 19950801 Aug 1,1995 I.B., II. EPA's RfD/RFC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS reivew. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1593 Ethylene thiourea (ETU) 96-45-7 10 19961101 Nov 1,1996 I.A.7. Primary contact's office changed
1594 Ethylene thiourea (ETU) 96-45-7 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1595 Ethylene thiourea (ETU) 96-45-7 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1596 Ethyleneimine 151-56-4 1 19920101 Jan 1,1992 I.B. Inhalation RfC now under review
1597 Ethyleneimine 151-56-4 2 19920401 Apr 1,1992 I.B. Inhalation RfC message on-line
1598 Ethyleneimine 151-56-4 3 19920401 Apr 1,1992 VI. Bibliography on-line
1599 Ethyleneimine 151-56-4 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1600 Ethyleneimine 151-56-4 5 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
1601 Ethyleneimine 151-56-4 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1602 Ethylphthalyl ethylglycolate (EPEG) 84-72-0 1 19890801 Aug 1,1989 VI. Bibliography on-line
1603 Ethylphthalyl ethylglycolate (EPEG) 84-72-0 2 19910501 May 1,1991 I.A.4. Text edited
1604 Ethylphthalyl ethylglycolate (EPEG) 84-72-0 3 19950201 Feb 1,1995 I.A.7. Secondary contact's name changed
1605 Ethylphthalyl ethylglycolate (EPEG) 84-72-0 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1606 Ethylphthalyl ethylglycolate (EPEG) 84-72-0 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1607 Express 101200-48-0 1 19890101 Jan 1,1989 I.A. Oral RfD summary on-line
1608 Express 101200-48-0 2 19891001 Oct 1,1989 VI. Bibliography on-line
1609 Express 101200-48-0 3 19900401 Apr 1,1990 I.A.2. Text edited
1610 Express 101200-48-0 4 19910201 Feb 1,1991 II. Carcinogen assessment now under review
1611 Express 101200-48-0 5 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1612 Express 101200-48-0 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1613 Express 101200-48-0 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1614 Fenamiphos 22224-92-6 1 19900901 Sep 1,1990 I.A. Principal study citation corrected
1615 Fenamiphos 22224-92-6 2 19900901 Sep 1,1990 I.A.4. Citations added
1616 Fenamiphos 22224-92-6 3 19900901 Sep 1,1990 VI. Bibliography on-line
1617 Fenamiphos 22224-92-6 4 19901001 Oct 1,1990 III.A. Health Advisory on-line
1618 Fenamiphos 22224-92-6 5 19901001 Oct 1,1990 VI.D. Health Advisory references added
1619 Fenamiphos 22224-92-6 6 19920101 Jan 1,1992 IV. Regulatory actions updated
1620 Fenamiphos 22224-92-6 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1621 Fenamiphos 22224-92-6 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1622 Fluometuron 2164-17-2 1 19880301 Mar 1,1988 I.A.1. Dose conversion clarified
1623 Fluometuron 2164-17-2 2 19900901 Sep 1,1990 I.A.2. Text edited
1624 Fluometuron 2164-17-2 3 19900901 Sep 1,1990 I.A.4. Citations added
1625 Fluometuron 2164-17-2 4 19900901 Sep 1,1990 III.A. Health Advisory on-line
1626 Fluometuron 2164-17-2 5 19900901 Sep 1,1990 VI. Bibliography on-line
1627 Fluometuron 2164-17-2 6 19920101 Jan 1,1992 IV. Regulatory action updated
1628 Fluometuron 2164-17-2 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1629 Fluometuron 2164-17-2 8 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
1630 Fluometuron 2164-17-2 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1631 Fluoranthene 206-44-0 1 19900901 Sep 1,1990 I.A. Oral RfD summary on-line
1632 Fluoranthene 206-44-0 2 19900901 Sep 1,1990 VI. Bibliography on-line
1633 Fluoranthene 206-44-0 3 19901201 Dec 1,1990 II. Carcinogen assessment on-line
1634 Fluoranthene 206-44-0 4 19901201 Dec 1,1990 VI.C. Carcinogen assessment references added
1635 Fluoranthene 206-44-0 5 19910701 Jul 1,1991 I.A.7. Primary and secondary contacts changed
1636 Fluoranthene 206-44-0 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1637 Fluoranthene 206-44-0 7 19930701 Jul 1,1993 I.A.6. Other EPA Documentation added
1638 Fluoranthene 206-44-0 8 19940901 Sep 1,1994 I.B. Inhalation RfC now under review
1639 Fluoranthene 206-44-0 9 19950801 Aug 1,1995 I.B. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replace the workgroup functions beginning in September, 1995.
1640 Fluoranthene 206-44-0 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1641 Fluoranthene 206-44-0 11 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1642 Fluorene 86-73-7 1 19901101 Nov 1,1990 I.A. Oral RfD summary on-line
1643 Fluorene 86-73-7 2 19901101 Nov 1,1990 VI. Bibliography on-line
1644 Fluorene 86-73-7 3 19901201 Dec 1,1990 II. Carcinogen assessment on-line
1645 Fluorene 86-73-7 4 19901201 Dec 1,1990 VI.C. Carcinogen assessment references added
1646 Fluorene 86-73-7 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1647 Fluorene 86-73-7 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1648 Fluorene 86-73-7 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1649 Fluorine (soluble fluoride) 7782-41-4 1 19870331 Mar 31,1987 I.A.6. Documentation corrected
1650 Fluorine (soluble fluoride) 7782-41-4 2 19880630 Jun 30,1988 I.A.7. Contacts switched
1651 Fluorine (soluble fluoride) 7782-41-4 3 19890401 Apr 1,1989 V. Supplementary data on-line
1652 Fluorine (soluble fluoride) 7782-41-4 4 19890601 Jun 1,1989 I.A.6. Work group review dates corrected
1653 Fluorine (soluble fluoride) 7782-41-4 5 19890801 Aug 1,1989 VI. Bibliography on-line
1654 Fluorine (soluble fluoride) 7782-41-4 6 19920101 Jan 1,1992 I.A.7. Seconday contact changed
1655 Fluorine (soluble fluoride) 7782-41-4 7 19920101 Jan 1,1992 IV. Regulatory actions updated
1656 Fluorine (soluble fluoride) 7782-41-4 8 19950801 Aug 1,1995 I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1657 Fluorine (soluble fluoride) 7782-41-4 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1658 Fluorine (soluble fluoride) 7782-41-4 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1659 Fluridone 59756-60-4 1 19880822 Aug 22,1988 I.A. Oral RfD summary replaced; RfD not changed
1660 Fluridone 59756-60-4 2 19900901 Sep 1,1990 I.A.4. Citations added
1661 Fluridone 59756-60-4 3 19900901 Sep 1,1990 VI. Bibliography on-line
1662 Fluridone 59756-60-4 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1663 Fluridone 59756-60-4 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1664 Flurprimidol 56425-91-3 1 19890701 Jul 1,1989 I.A. Oral RfD summary on-line
1665 Flurprimidol 56425-91-3 2 19890701 Jul 1,1989 VI. Bibliography on-line
1666 Flurprimidol 56425-91-3 3 19900401 Apr 1,1990 All CASRN corrected
1667 Flurprimidol 56425-91-3 4 19900401 Apr 1,1990 I.A. Text edited
1668 Flurprimidol 56425-91-3 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1669 Flurprimidol 56425-91-3 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1670 Flutolanil 66332-96-5 1 19890501 May 1,1989 I.A. Oral RfD summary on-line
1671 Flutolanil 66332-96-5 2 19890701 Jul 1,1989 VI. Bibliography on-line
1672 Flutolanil 66332-96-5 3 19900501 May 1,1990 I.A.2. Text edited
1673 Flutolanil 66332-96-5 4 19900501 May 1,1990 I.A.4. Text edited
1674 Flutolanil 66332-96-5 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1675 Flutolanil 66332-96-5 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1676 Fluvalinate 69409-94-5 1 19910301 Mar 1,1991 I.A.4. Citations added
1677 Fluvalinate 69409-94-5 2 19910301 Mar 1,1991 VI. Bibliography on-line
1678 Fluvalinate 69409-94-5 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1679 Fluvalinate 69409-94-5 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1680 Fluvalinate 69409-94-5 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1681 Folpet 133-07-3 1 19880822 Aug 22,1988 II. Carcinogen summary on-line
1682 Folpet 133-07-3 2 19910301 Mar 1,1991 I.A.4. Citations added
1683 Folpet 133-07-3 3 19910301 Mar 1,1991 VI. Bibliography on-line
1684 Folpet 133-07-3 4 19910401 Apr 1,1991 VI.C. Carcinogen references added
1685 Folpet 133-07-3 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1686 Folpet 133-07-3 6 19931001 Oct 1,1993 II.D.3. Primary contact changed; secondary's phone no. changed
1687 Folpet 133-07-3 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1688 Folpet 133-07-3 8 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
1689 Folpet 133-07-3 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1690 Fomesafen 72178-02-0 1 19880822 Aug 22,1988 II. Carcinogen summary on-line
1691 Fomesafen 72178-02-0 2 19890101 Jan 1,1989 All CASRN corrected
1692 Fomesafen 72178-02-0 3 19920601 Jun 1,1992 II.A.3. Citation years corrected
1693 Fomesafen 72178-02-0 4 19920601 Jun 1,1992 II.B.2. Citation year corrected
1694 Fomesafen 72178-02-0 5 19920601 Jun 1,1992 VI. Bibliography on-line
1695 Fomesafen 72178-02-0 6 19931001 Oct 1,1993 II.D.3. Primary contact changed
1696 Fomesafen 72178-02-0 7 19970401 Apr 1,1997 III., IV. V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1697 Fomesafen 72178-02-0 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1698 Fonofos 944-22-9 1 19910301 Mar 1,1991 I.A.1. MRID No. corrected
1699 Fonofos 944-22-9 2 19910301 Mar 1,1991 I.A.4. Citations added
1700 Fonofos 944-22-9 3 19910301 Mar 1,1991 VI. Bibliography on-line
1701 Fonofos 944-22-9 4 19910401 Apr 1,1991 V.B. Missing field added (Haz. Decomp. or Byproducts)
1702 Fonofos 944-22-9 5 19920101 Jan 1,1992 IV. Regulatory actions updated
1703 Fonofos 944-22-9 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1704 Fonofos 944-22-9 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1705 Formaldehyde 50-00-0 1 19891001 Oct 1,1989 II. Carcinogen summary on-line
1706 Formaldehyde 50-00-0 2 19891001 Oct 1,1989 VI. Bibliography on-line
1707 Formaldehyde 50-00-0 3 19891201 Dec 1,1989 I.A. Oral RfD now under review
1708 Formaldehyde 50-00-0 4 19900201 Feb 1,1990 VI. Supplementary data on-line
1709 Formaldehyde 50-00-0 5 19900901 Sep 1,1990 I.A. Oral RfD summary on-line
1710 Formaldehyde 50-00-0 6 19900901 Sep 1,1990 II. Text edited
1711 Formaldehyde 50-00-0 7 19900901 Sep 1,1990 VI.A. Oral RfD references added
1712 Formaldehyde 50-00-0 8 19910101 Jan 1,1991 II. Text edited
1713 Formaldehyde 50-00-0 9 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
1714 Formaldehyde 50-00-0 10 19910501 May 1,1991 II.C.1. Corrected units in risk level concentrations
1715 Formaldehyde 50-00-0 11 19910801 Aug 1,1991 VI.A.&C. Citations clarified
1716 Formaldehyde 50-00-0 12 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1717 Formaldehyde 50-00-0 13 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1718 Formaldehyde 50-00-0 14 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
1719 Formic acid 64-18-6 1 19870331 Mar 31,1987 I.A.6. Documentation corrected
1720 Formic acid 64-18-6 2 19880301 Mar 1,1988 I.A.1. Critical effect revised
1721 Formic acid 64-18-6 3 19880301 Mar 1,1988 I.A.2. Text added paragraph 1
1722 Formic acid 64-18-6 4 19901201 Dec 1,1990 I.A. Oral RfD withdrawn pending further review
1723 Formic acid 64-18-6 5 19911001 Oct 1,1991 II. Carcinogenicity assessment now under review
1724 Formic acid 64-18-6 6 19920101 Jan 1,1992 IV. Regulatory action updated
1725 Formic acid 64-18-6 7 19950801 Aug 1,1995 I.A., II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1726 Formic acid 64-18-6 8 19960201 Feb 1,1996 I.A. Contact changed
1727 Formic acid 64-18-6 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1728 Formic acid 64-18-6 10 20181210 Dec 10,2018 Archived Values Requested by the IRIS Program to archive the chemicals with null values.
1729 Formic acid 64-18-6 11 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1730 Fosetyl-al 39148-24-8 1 19880822 Aug 22,1988 II. Carcinogen summary on-line
1731 Fosetyl-al 39148-24-8 2 19910301 Mar 1,1991 I.A.1. MRID No. added
1732 Fosetyl-al 39148-24-8 3 19910301 Mar 1,1991 I.A.4. Citations added
1733 Fosetyl-al 39148-24-8 4 19910301 Mar 1,1991 VI. Bibliography on-line
1734 Fosetyl-al 39148-24-8 5 19910401 Apr 1,1991 VI.C. Citations clarified
1735 Fosetyl-al 39148-24-8 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1736 Fosetyl-al 39148-24-8 7 19931001 Oct 1,1993 II.D.3. Primary contact changed; secondary's phone no. changed
1737 Fosetyl-al 39148-24-8 8 19940701 Jul 1,1994 II. Carcinogenicity assessment noted as pending change
1738 Fosetyl-al 39148-24-8 9 19950801 Aug 1,1995 II., II.D.2. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
1739 Fosetyl-al 39148-24-8 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1740 Fosetyl-al 39148-24-8 11 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
1741 Fosetyl-al 39148-24-8 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1742 Furan 110-00-9 1 None None
1743 Furan 110-00-9 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1744 Furfural 98-01-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1745 Furmecyclox 60568-05-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1746 Glufosinate-ammonium 77182-82-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1747 Glycidaldehyde 765-34-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1748 Glyphosate 1071-83-6 1 20190416 Apr 16,2019 Related Links Removed the archived REDs link from top list because they can get to the documents from the new tab.
1749 Glyphosate 1071-83-6 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1750 Haloxyfop-methyl 69806-40-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1751 Harmony 79277-27-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1752 Heptachlor 76-44-8 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
1753 Heptachlor 76-44-8 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1754 Heptachlor epoxide 1024-57-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1755 n-Heptane 142-82-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1756 Hexabromobenzene 87-82-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1757 Hexabromocyclododecane (HBCD) 3194-55-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1758 Hexabromodiphenyl ether 36483-60-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1759 2,2',4,4',5,5'-Hexabromodiphenyl ether (BDE-153) 68631-49-2 1 20080630 Jun 30,2008 I., II. RfD, RfC, and cancer assessment first on line.
1760 2,2',4,4',5,5'-Hexabromodiphenyl ether (BDE-153) 68631-49-2 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1761 Hexachlorobenzene 118-74-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1762 Hexachlorobutadiene 87-68-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1763 alpha-Hexachlorocyclohexane (alpha-HCH) 319-84-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1764 beta-Hexachlorocyclohexane (beta-HCH) 319-85-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1765 delta-Hexachlorocyclohexane (delta-HCH) 319-86-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1766 epsilon-Hexachlorocyclohexane (epsilon-HC) 6108-10-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1767 gamma-Hexachlorocyclohexane (gamma-HCH) 58-89-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1768 technical Hexachlorocyclohexane (t-HCH) 608-73-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1769 Hexachlorocyclopentadiene (HCCPD) 77-47-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1770 Hexachlorodibenzo-p-dioxin (HxCDD), mixture of 1,2,3,6,7,8-HxCDD and 1,2,3,7,8,9-HxCDD 57653-85-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1771 Hexachloroethane 67-72-1 1 19870930 Sep 30,1987 I.A. Oral RfD assessment on-line
1772 Hexachloroethane 67-72-1 2 19880301 Mar 1,1988 I.A.5. Confidence levels revised
1773 Hexachloroethane 67-72-1 3 19880301 Mar 1,1988 II.B.3. Text clarified
1774 Hexachloroethane 67-72-1 4 19880301 Mar 1,1988 II.B.4. Confidence statement revised
1775 Hexachloroethane 67-72-1 5 19880301 Mar 1,1988 II.C.4. Confidence statement revised
1776 Hexachloroethane 67-72-1 6 19910101 Jan 1,1991 II. Text edited
1777 Hexachloroethane 67-72-1 7 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
1778 Hexachloroethane 67-72-1 8 19910401 Apr 1,1991 I.A. Text edited
1779 Hexachloroethane 67-72-1 9 19910401 Apr 1,1991 I.A.7. Secondary contact changed
1780 Hexachloroethane 67-72-1 10 19910401 Apr 1,1991 II. Text edited
1781 Hexachloroethane 67-72-1 11 19910401 Apr 1,1991 VI. Bibliography on-line
1782 Hexachloroethane 67-72-1 12 19911201 Dec 1,1991 I.B. Inhalation RfC now under review
1783 Hexachloroethane 67-72-1 13 19911201 Dec 1,1991 IV.F.1. EPA contact changed
1784 Hexachloroethane 67-72-1 14 19920101 Jan 1,1992 IV. Regulatory actions updated
1785 Hexachloroethane 67-72-1 15 19921201 Dec 1,1992 I.B. Work group review date added
1786 Hexachloroethane 67-72-1 16 19940201 Feb 1,1994 II.D.3. Secondary contact's phone number changed
1787 Hexachloroethane 67-72-1 17 19950801 Aug 1,1995 I.B. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemicalsubstance reviews that were not completed by September 1995 were taken out of IRISreview. The IRIS Pilot Program replaced the workgroup functions beginning inSeptember, 1995.
1788 Hexachloroethane 67-72-1 18 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Datawere removed from IRIS on or before April 1997. IRIS users were directed to theappropriate EPA Program Offices for this information.
1789 Hexachloroethane 67-72-1 19 20110923 Sep 23,2011 I, II, VI, VIII RfD and cancer assessments updated. RfC added.
1790 Hexachloroethane 67-72-1 20 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1791 Hexachlorophene 70-30-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1792 Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) 121-82-4 1 20180830 Aug 30,2018 Updates to Key Value After a rigorous peer review, the IRIS Program update the noncancer RfD value (not enough data was available to update the RfC), and the weight of evidence (woe) oral unit risk value (not enough data was available to update the inhalation unit risk value.
1793 Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) 121-82-4 2 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
1794 1,6-Hexamethylene diisocyanate 822-06-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1795 n-Hexane 110-54-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1796 2-Hexanone 591-78-6 1 20090925 Sep 25,2009 I., II. RfD, RfC, and cancer assessment first on-line
1797 2-Hexanone 591-78-6 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1798 Hexazinone 51235-04-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1799 Hydrazine/Hydrazine sulfate 302-01-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1800 Hydrogen Cyanide and Cyanide Salts Various 1 19870331 Mar 31,1987 I.A.6. Documentation corrected
1801 Hydrogen Cyanide and Cyanide Salts Various 2 19880301 Mar 1,1988 I.A.2. Text revised
1802 Hydrogen Cyanide and Cyanide Salts Various 3 19880301 Mar 1,1988 III.A. Health Advisory added
1803 Hydrogen Cyanide and Cyanide Salts Various 4 19900801 Aug 1,1990 IV.F.1. EPA contact changed
1804 Hydrogen Cyanide and Cyanide Salts Various 5 19910601 Jun 1,1991 VI. Bibliography on-line
1805 Hydrogen Cyanide and Cyanide Salts Various 6 19920101 Jan 1,1992 I.A.7. Primary contact changed
1806 Hydrogen Cyanide and Cyanide Salts Various 7 19920101 Jan 1,1992 IV. Regulatory actions updated
1807 Hydrogen Cyanide and Cyanide Salts Various 8 19930201 Feb 1,1993 I.A.7. Minor text change
1808 Hydrogen Cyanide and Cyanide Salts Various 9 19930301 Mar 1,1993 I.B. Inhalation RfC now under review
1809 Hydrogen Cyanide and Cyanide Salts Various 10 19940901 Sep 1,1994 I.B. Inhalation RfC on-line
1810 Hydrogen Cyanide and Cyanide Salts Various 11 19940901 Sep 1,1994 VI.B. Inhalation RfC references on-line
1811 Hydrogen Cyanide and Cyanide Salts Various 12 19941101 Nov 1,1994 VI.B. Osuntokun, 1981 reference clarified
1812 Hydrogen Cyanide and Cyanide Salts Various 13 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1813 Hydrogen Cyanide and Cyanide Salts Various 14 20020109 Jan 9,2002 I., II. This chemical is being reassessed under the IRIS Program
1814 Hydrogen Cyanide and Cyanide Salts Various 15 20100928 Sep 28,2010 I., II., VI. RfD and RfC assessment updated cancer assessment added.
1815 Hydrogen Cyanide and Cyanide Salts Various 16 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1816 Hydrogen chloride 7647-01-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1817 Hydrogen sulfide 7783-06-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1818 Hydroquinone 123-31-9 1 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
1819 Hydroquinone 123-31-9 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1820 Imazalil 35554-44-0 1 20160715 Jul 15,2016 Archived Key Values IRIS working with OPP agreed to mark this pesticide chemical archived.
1821 Imazalil 35554-44-0 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1822 Imazaquin 81335-37-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1823 Indeno[1,2,3-cd]pyrene 193-39-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1824 Iprodione 36734-19-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1825 Isobutyl alcohol 78-83-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1826 Isophorone 78-59-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1827 Isopropalin 33820-53-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1828 Isopropyl methyl phosphonic acid (IMPA) 1832-54-8 1 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
1829 Isopropyl methyl phosphonic acid (IMPA) 1832-54-8 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1830 Isoxaben 82558-50-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1831 Lactofen 77501-63-4 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
1832 Lactofen 77501-63-4 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1833 Lead and compounds (inorganic) 7439-92-1 1 19880926 Sep 26,1988 II. Carcinogen summary on-line
1834 Lead and compounds (inorganic) 7439-92-1 2 19890201 Feb 1,1989 IV.B.1. Effect level corrected in discussion
1835 Lead and compounds (inorganic) 7439-92-1 3 19890601 Jun 1,1989 II.D.3. Primary contact changed
1836 Lead and compounds (inorganic) 7439-92-1 4 19890601 Jun 1,1989 IV.A.1. Reference corrected - changed number for part in CFR
1837 Lead and compounds (inorganic) 7439-92-1 5 19891201 Dec 1,1989 II.A.3. Last paragraph - correct Van Esch 1969 citation
1838 Lead and compounds (inorganic) 7439-92-1 6 19891201 Dec 1,1989 VI. Bibliography on-line
1839 Lead and compounds (inorganic) 7439-92-1 7 19900701 Jul 1,1990 I.A. Changed contact J. Cohen's office and telephone number
1840 Lead and compounds (inorganic) 7439-92-1 8 19900701 Jul 1,1990 IV.F.1. EPA contact chenged
1841 Lead and compounds (inorganic) 7439-92-1 9 19910201 Feb 1,1991 I.A. Message revised to include new EPA document
1842 Lead and compounds (inorganic) 7439-92-1 10 19910201 Feb 1,1991 I.A. EPA contacts changed
1843 Lead and compounds (inorganic) 7439-92-1 11 19910501 May 1,1991 II.A. Text edited
1844 Lead and compounds (inorganic) 7439-92-1 12 19920101 Jan 1,1992 IV. Regulatory actions updated
1845 Lead and compounds (inorganic) 7439-92-1 13 19920601 Jun 1,1992 IV.B.2. MCL monitoring reqs. and BAT corrected
1846 Lead and compounds (inorganic) 7439-92-1 14 19930701 Jul 1,1993 II.D.3. Secondary contact's phone number changed
1847 Lead and compounds (inorganic) 7439-92-1 15 19930701 Jul 1,1993 VI.C. References alphabetized correctly
1848 Lead and compounds (inorganic) 7439-92-1 16 19931101 Nov 1,1993 II.D.1. U.S.EPA 1987 replaced with 1989; rev. state. revised
1849 Lead and compounds (inorganic) 7439-92-1 17 19931101 Nov 1,1993 VI.C. U.S.EPA 1987 deleted; U.S.EPA 1989 added
1850 Lead and compounds (inorganic) 7439-92-1 18 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1851 Lead and compounds (inorganic) 7439-92-1 19 I.A., I.Bl, II. Previous reference value discussions replaced with links to EPA websites containing regulatory information and other websites with risk assessment information; cancer discussion retained, added links to agencies conducting reviews of lead carcinogenicity.
1852 Lead and compounds (inorganic) 7439-92-1 20 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1853 Libby Amphibole Asbestos 1318-09-8 1 20141117 Nov 17,2014 IB, II, VI. RfC and cancer assessment added
1854 Libby Amphibole Asbestos 1318-09-8 2 20200619 Jun 19,2020 CASRN Added CASRN, DTXSID number (as alternate CASRN) and related link from/to the Chemistry Dashboard.
1855 Libby Amphibole Asbestos 1318-09-8 3 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
1856 d-Limonene 5989-27-5 1 19931101 Nov 1,1993 I.B. Inhalation RfC now under review
1857 d-Limonene 5989-27-5 2 19931201 Dec 1,1993 I.B. Inhalation RfC message on-line
1858 d-Limonene 5989-27-5 3 19911201 Dec 1,1991 VI.B. Inhalation RfC references on-line
1859 d-Limonene 5989-27-5 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1860 d-Limonene 5989-27-5 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1861 Linuron 330-55-2 1 19890501 May 1,1989 II. Carcinogen assessment now under review
1862 Linuron 330-55-2 2 19890801 Aug 1,1989 II. Carcinogen summary on-line
1863 Linuron 330-55-2 3 19890801 Aug 1,1989 VI. Bibliography on-line
1864 Linuron 330-55-2 4 19900801 Aug 1,1990 I.A. Text edited
1865 Linuron 330-55-2 5 19900801 Aug 1,1990 II. Text edited
1866 Linuron 330-55-2 6 19900801 Aug 1,1990 VI.A. RfD references added
1867 Linuron 330-55-2 7 19920101 Jan 1,1992 IV. Regulatory actions updated
1868 Linuron 330-55-2 8 19931001 Oct 1,1993 II.D.3. Secondary actions updated
1869 Linuron 330-55-2 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1870 Linuron 330-55-2 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1871 Londax 83055-99-6 1 19870930 Sep 30,1987 All CASRN added to file
1872 Londax 83055-99-6 2 19880301 Mar 1,1988 I.A.2. LEL text clarified
1873 Londax 83055-99-6 3 19880630 Jun 30,1988 I.A. Withdrawn; new RfD verified (in preparation)
1874 Londax 83055-99-6 4 19880907 Sep 7,1988 I.A. Revised oral RfD summary added
1875 Londax 83055-99-6 5 19900901 Sep 1,1990 I.A.4. Citations added
1876 Londax 83055-99-6 6 19900901 Sep 1,1990 VI. Bibliography on-line
1877 Londax 83055-99-6 7 19910401 Apr 1,1991 I.A. Text edited
1878 Londax 83055-99-6 8 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1879 Londax 83055-99-6 9 20180801 Aug 1,2018 POD Value Update Made a correction on the POD on the Oral RfD from 1.99 to 19.9 to match the tox review.
1880 Londax 83055-99-6 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1881 Malathion 121-75-5 1 19880301 Mar 1,1988 All CASRN corrected
1882 Malathion 121-75-5 2 19910801 Aug 1,1991 I.B. Inhalation RfC now under review
1883 Malathion 121-75-5 3 19920101 Jan 1,1992 I.A.4. Citations added
1884 Malathion 121-75-5 4 19920101 Jan 1,1992 IV. Regulatory actions updated
1885 Malathion 121-75-5 5 19920101 Jan 1,1992 VI. Bibliography on-line
1886 Malathion 121-75-5 6 19950801 Aug 1,1995 I.B. EPA's RfD/RfC and CRAVE workshops were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken oout of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
1887 Malathion 121-75-5 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1888 Malathion 121-75-5 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1889 Maleic anhydride 108-31-6 1 19880822 Aug 22,1988 I.A. Oral RfD summary on-line
1890 Maleic anhydride 108-31-6 2 19880926 Sep 26,1988 All CASRN corrected
1891 Maleic anhydride 108-31-6 3 19910401 Apr 1,1991 I.A. Text edited
1892 Maleic anhydride 108-31-6 4 19910401 Apr 1,1991 I.A.7. Secondary contact changed
1893 Maleic anhydride 108-31-6 5 19910801 Aug 1,1991 I.A. All citations clarified - changed to U.S. EPA
1894 Maleic anhydride 108-31-6 6 19910801 Aug 1,1991 VI. Bibliography on-ine
1895 Maleic anhydride 108-31-6 7 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1896 Maleic anhydride 108-31-6 8 19930701 Jul 1,1993 I.A.6. Other EPA Documentation clarified
1897 Maleic anhydride 108-31-6 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1898 Maleic anhydride 108-31-6 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1899 Maleic hydrazide 123-33-1 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
1900 Maleic hydrazide 123-33-1 2 19920101 Jan 1,1992 IV. Regulatory actions updated
1901 Maleic hydrazide 123-33-1 3 19920501 May 1,1992 I.A.7. Primary contact changed
1902 Maleic hydrazide 123-33-1 4 19920501 May 1,1992 VI.A. Bibliography on-line
1903 Maleic hydrazide 123-33-1 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information
1904 Maleic hydrazide 123-33-1 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1905 Maneb 12427-38-2 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
1906 Maneb 12427-38-2 2 19910401 Apr 1,1991 I.A. Text edited
1907 Maneb 12427-38-2 3 19920101 Jan 1,1992 I.A.4. Citations added
1908 Maneb 12427-38-2 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1909 Maneb 12427-38-2 5 19920101 Jan 1,1992 VI. Bibliography on-line
1910 Maneb 12427-38-2 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1911 Maneb 12427-38-2 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1912 Manganese 7439-96-5 1 19880926 Sep 26,1988 II. Carcinogen summary on-line
1913 Manganese 7439-96-5 2 19890901 Sep 1,1989 VI. Bibliography on-line
1914 Manganese 7439-96-5 3 19900601 Jun 1,1990 I.A. Oral RfD now under review
1915 Manganese 7439-96-5 4 19900801 Aug 1,1990 I.A. Oral RfD summary on-line
1916 Manganese 7439-96-5 5 19900801 Aug 1,1990 II. Text edited
1917 Manganese 7439-96-5 6 19900801 Aug 1,1990 VI. Oral RfD references added
1918 Manganese 7439-96-5 7 19900901 Sep 1,1990 I.B. Inhalation RfC now under review
1919 Manganese 7439-96-5 8 19901206 Dec 6,1990 I.B. Inhalation RfC on-line
1920 Manganese 7439-96-5 9 19901206 Dec 6,1990 VI.B. Inhalation RfC references added
1921 Manganese 7439-96-5 10 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1922 Manganese 7439-96-5 11 19920601 Jun 1,1992 VI.B. Iregren, 1990 and Nishiyama et al., 1975 pages corrected
1923 Manganese 7439-96-5 12 19920801 Aug 1,1992 I.A. Oral RfD noted as pending change
1924 Manganese 7439-96-5 13 19920801 Aug 1,1992 I.A.6. Work group review date added
1925 Manganese 7439-96-5 14 19921001 Oct 1,1992 I.A. Oral RfD withdrawn; new summary in preparation
1926 Manganese 7439-96-5 15 19921001 Oct 1,1992 I.A.6. Work group review date added
1927 Manganese 7439-96-5 16 19921001 Oct 1,1992 VI.A. Oral RfD references withdrawn
1928 Manganese 7439-96-5 17 19930101 Jan 1,1993 I.A. Oral RfD replaced (RfD changed)
1929 Manganese 7439-96-5 18 19930101 Jan 1,1993 VI.A. Oral RfD references replaced
1930 Manganese 7439-96-5 19 19930501 May 1,1993 I.A. Work group review date added
1931 Manganese 7439-96-5 20 19930701 Jul 1,1993 II.A.3. 'Inadequate' added to first paragraph
1932 Manganese 7439-96-5 21 19930701 Jul 1,1993 II.D.1. EPA Documentation clarified
1933 Manganese 7439-96-5 22 19931101 Nov 1,1993 I.B. Inhalation RfC noted as pending changed
1934 Manganese 7439-96-5 23 19931101 Nov 1,1993 I.B.6. Work group review date added
1935 Manganese 7439-96-5 24 19931201 Dec 1,1993 I.B. Inhalation RfC replaced; RfC changed
1936 Manganese 7439-96-5 25 19931201 Dec 1,1993 VI.B. Inhalation RfC references replaced
1937 Manganese 7439-96-5 26 19940101 Jan 1,1994 I.A. Oral RfD noted as pending change
1938 Manganese 7439-96-5 27 19940101 Jan 1,1994 I.A.6. Work group review date added
1939 Manganese 7439-96-5 28 19940301 Mar 1,1994 II.D.3. Primary contact changed
1940 Manganese 7439-96-5 29 19940401 Apr 1,1994 I.A.2. Text revised
1941 Manganese 7439-96-5 30 19940401 Apr 1,1994 I.A.3. Test revised
1942 Manganese 7439-96-5 31 19940401 Apr 1,1994 I.A.4. Text revised
1943 Manganese 7439-96-5 32 19940401 Apr 1,1994 I.A.5. Text revised
1944 Manganese 7439-96-5 33 19940401 Apr 1,1994 VI.A. Oral RfD references revised
1945 Manganese 7439-96-5 34 19950601 Jun 1,1995 I.A. Oral RfD noted as pending change
1946 Manganese 7439-96-5 35 19950601 Jun 1,1995 I.A.6. Work group review date added
1947 Manganese 7439-96-5 36 19950801 Aug 1,1995 I.A., I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot PRogram replaced the workgroup functions beginning in September 1995.
1948 Manganese 7439-96-5 37 19951101 Nov 1,1995 I.A. Oral RfD assessment replaced
1949 Manganese 7439-96-5 38 19951101 Nov 1,1995 VI.A. Oral RfD references replaced
1950 Manganese 7439-96-5 39 19960501 May 1,1996 I.A.7. Secondary contact's phone number changed
1951 Manganese 7439-96-5 40 19961201 Dec 1,1996 II.D.3. Primary contact removed
1952 Manganese 7439-96-5 41 19970401 Apr 1,1997 III., IV., V. Drinking Wate Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1953 Manganese 7439-96-5 42 20181220 Dec 20,2018 Reassessment EPA had been working on a reassessment of manganese but this document developmebt was suspended because of other priorities.
1954 Manganese 7439-96-5 43 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
1955 Mepiquat chloride 24307-26-4 1 19880822 Aug 22,1988 I.A. Oral RfD summary on-line
1956 Mepiquat chloride 24307-26-4 2 19891001 Oct 1,1989 VI. Bibliography on-line
1957 Mepiquat chloride 24307-26-4 3 19910401 Apr 1,1991 I.A. text edited
1958 Mepiquat chloride 24307-26-4 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1959 Mepiquat chloride 24307-26-4 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1960 Mepiquat chloride 24307-26-4 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1961 Mercuric chloride (HgCl2) 7487-94-7 1 19940401 Apr 1,1994 I.B. Inhalation RfC noted as under review on 3/22/1990
1962 Mercuric chloride (HgCl2) 7487-94-7 2 19940401 Apr 1,1994 II. Carcinogenicity assessment now under review
1963 Mercuric chloride (HgCl2) 7487-94-7 3 19950501 May 1,1995 I.A. Oral RfD summary on-line
1964 Mercuric chloride (HgCl2) 7487-94-7 4 19950501 May 1,1995 II. Carcinogenicity assessment summary on-line
1965 Mercuric chloride (HgCl2) 7487-94-7 5 19950501 May 1,1995 VI. Bibliography on-line
1966 Mercuric chloride (HgCl2) 7487-94-7 6 19950601 Jun 1,1995 II.B. Text revised; first paragraph
1967 Mercuric chloride (HgCl2) 7487-94-7 7 19950801 Aug 1,1995 I.B. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by Setember 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
1968 Mercuric chloride (HgCl2) 7487-94-7 8 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were direced to the appropriate EPA Program Offices for this information.
1969 Mercuric chloride (HgCl2) 7487-94-7 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1970 Mercury, elemental 7439-97-6 1 19880907 Sep 7,1988 II. Carcinogen summary on-line
1971 Mercury, elemental 7439-97-6 2 19890901 Sep 1,1989 VI. Bibliography on-line
1972 Mercury, elemental 7439-97-6 3 19891201 Dec 1,1989 I.B. Inhalation RfD now under review
1973 Mercury, elemental 7439-97-6 4 19910501 May 1,1991 II.A.3. Text edited
1974 Mercury, elemental 7439-97-6 5 19920101 Jan 1,1992 IV. Regulatory Action Section on-line
1975 Mercury, elemental 7439-97-6 6 19940401 Apr 1,1994 II. Carcinogenicity assessment noted as pending change
1976 Mercury, elemental 7439-97-6 7 19940401 Apr 1,1994 II.D.2. Work group review date added
1977 Mercury, elemental 7439-97-6 8 19950501 May 1,1995 All Name changed from mercury (inorganic)
1978 Mercury, elemental 7439-97-6 9 19950501 May 1,1995 II. Carcinogen assessment replaced
1979 Mercury, elemental 7439-97-6 10 19950501 May 1,1995 VI.C. Carcinogen assessment references replaced
1980 Mercury, elemental 7439-97-6 11 19950601 Jun 1,1995 I.B. Inhalation RfC summary on-line
1981 Mercury, elemental 7439-97-6 12 19950601 Jun 1,1995 VI.B. Inhalation RfC references on-line
1982 Mercury, elemental 7439-97-6 13 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
1983 Mercury, elemental 7439-97-6 14 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1984 Merphos 150-50-5 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
1985 Merphos 150-50-5 2 19890101 Jan 1,1989 All CASRN corrected
1986 Merphos 150-50-5 3 19910401 Apr 1,1991 I.A. Text edited
1987 Merphos 150-50-5 4 19920401 Apr 1,1992 I.A.4. Citations added
1988 Merphos 150-50-5 5 19920401 Apr 1,1992 VI. Bibliography on-line
1989 Merphos 150-50-5 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
1990 Merphos 150-50-5 7 19920801 Aug 1,1992 I.B. Inhalation RfC now under review
1991 Merphos 150-50-5 8 19921101 Nov 1,1992 I.B. Not verified; data inadequate
1992 Merphos 150-50-5 9 19921101 Nov 1,1992 VI.B. No references available
1993 Merphos 150-50-5 10 19970401 Apr 1,1997 III., IV.,V. Dring Water Health Advisories, EPA Regulatory Actions, and Supplementary data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program offices for this information.
1994 Merphos 150-50-5 11 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
1995 Merphos 150-50-5 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
1996 Merphos oxide 78-48-8 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
1997 Merphos oxide 78-48-8 2 19910401 Apr 1,1991 I.A. Text edited
1998 Merphos oxide 78-48-8 3 19910401 Apr 1,1991 I.A.4. Citations added
1999 Merphos oxide 78-48-8 4 19910401 Apr 1,1991 VI. Bibliography on-line
2000 Merphos oxide 78-48-8 5 19920801 Aug 1,1992 I.B. Inhalation RfC now under review
2001 Merphos oxide 78-48-8 6 19921101 Nov 1,1992 I.B. Not verified; data inadequate
2002 Merphos oxide 78-48-8 7 19921101 Nov 1,1992 VI.B. No references available
2003 Merphos oxide 78-48-8 8 19970401 Apr 1,1997 III., IV., V. Drinking Water Halth Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2004 Merphos oxide 78-48-8 9 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2005 Merphos oxide 78-48-8 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2006 Metalaxyl 57837-19-1 1 19870301 Mar 1,1987 IV. Regulatory Action section on-line
2007 Metalaxyl 57837-19-1 2 19910301 Mar 1,1991 I.A.4. Citations added
2008 Metalaxyl 57837-19-1 3 19910301 Mar 1,1991 VI. Bibliography on-line
2009 Metalaxyl 57837-19-1 4 19920101 Jan 1,1992 IV. Regulatory action updated
2010 Metalaxyl 57837-19-1 5 19950101 Jan 1,1995 I.A. Oral RfD noted as pending
2011 Metalaxyl 57837-19-1 6 19950101 Jan 1,1995 I.A.6. Work group review date added
2012 Metalaxyl 57837-19-1 7 19950801 Aug 1,1995 I.A., I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2013 Metalaxyl 57837-19-1 8 19970401 Apr 1,1997 III., IV., V. Drinking Water HEalth Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2014 Metalaxyl 57837-19-1 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2015 Methacrylonitrile 126-98-7 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
2016 Methacrylonitrile 126-98-7 2 19890401 Apr 1,1989 V. Supplementary data on-line
2017 Methacrylonitrile 126-98-7 3 19890901 Sep 1,1989 VI. Bibliography on-line
2018 Methacrylonitrile 126-98-7 4 19910101 Jan 1,1991 I.A. Text edited
2019 Methacrylonitrile 126-98-7 5 19920101 Jan 1,1992 I.A.7. Secondary contact changed
2020 Methacrylonitrile 126-98-7 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2021 Methacrylonitrile 126-98-7 7 19960201 Feb 1,1996 I.A.7. Secondary contact deleted
2022 Methacrylonitrile 126-98-7 8 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplemetary data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2023 Methacrylonitrile 126-98-7 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2024 Methamidophos 10265-92-6 1 19880301 Mar 1,1988 I.A.4. Text deleted
2025 Methamidophos 10265-92-6 2 19910301 Mar 1,1991 I.A.4. Citations added
2026 Methamidophos 10265-92-6 3 19910301 Mar 1,1991 VI. Bibliography on-line
2027 Methamidophos 10265-92-6 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2028 Methamidophos 10265-92-6 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2029 Methamidophos 10265-92-6 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2030 Methanol 67-56-1 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
2031 Methanol 67-56-1 2 19891001 Oct 1,1989 I.B. Inhalation RfD now under review
2032 Methanol 67-56-1 3 19891101 Nov 1,1989 VI. Bibliography on-line
2033 Methanol 67-56-1 4 19910101 Jan 1,1991 I.A. Text edited
2034 Methanol 67-56-1 5 19920101 Jan 1,1992 I.A.7. Secondary contact changed
2035 Methanol 67-56-1 6 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2036 Methanol 67-56-1 7 19930701 Jul 1,1993 I.A.6. Other EPA Documnetation added
2037 Methanol 67-56-1 8 19950801 Aug 1,1995 .B. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2038 Methanol 67-56-1 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA PRogram Offices for this information.
2039 Methanol 67-56-1 10 20130930 Sep 30,2013 I., VI., VIII. RfD assessment updated. RfC added.
2040 Methanol 67-56-1 11 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
2041 Methidathion 950-37-8 1 19880822 Aug 22,1988 I.A. Oral RfD summary on-line
2042 Methidathion 950-37-8 2 19890401 Apr 1,1989 V. Supplementary data on-line
2043 Methidathion 950-37-8 3 19890501 May 1,1989 II. Carcinogen summary on-line
2044 Methidathion 950-37-8 4 19891201 Dec 1,1989 II.A.3. Paragraph 1: Citation corrected
2045 Methidathion 950-37-8 5 19891201 Dec 1,1989 II.A.3. Paragraph 2: Citation corrected
2046 Methidathion 950-37-8 6 19891201 Dec 1,1989 VI. Bibliography on-line
2047 Methidathion 950-37-8 7 19900801 Aug 1,1990 I.A. Text edited
2048 Methidathion 950-37-8 8 19900801 Aug 1,1990 II. Text edited
2049 Methidathion 950-37-8 9 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2050 Methidathion 950-37-8 10 19930701 Jul 1,1993 II.D.1. EPA Documentation clarified
2051 Methidathion 950-37-8 11 19930701 Jul 1,1993 VI.C. EPA reference year clarified
2052 Methidathion 950-37-8 12 19931001 Oct 1,1993 II.D.3. Secondary contact changed
2053 Methidathion 950-37-8 13 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices.
2054 Methidathion 950-37-8 14 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2055 Methidathion 950-37-8 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2056 Methomyl 16752-77-5 1 19870331 Mar 31,1987 IV. Regulatory Action section on-line
2057 Methomyl 16752-77-5 2 19881201 Dec 1,1988 I.A.4. Core grades added to studies 1, 3 and 4
2058 Methomyl 16752-77-5 3 19910301 Mar 1,1991 I.A.4. Citations added
2059 Methomyl 16752-77-5 4 19910301 Mar 1,1991 III.A. Health Advisory on-line
2060 Methomyl 16752-77-5 5 19910301 Mar 1,1991 VI. Bibliography on-line
2061 Methomyl 16752-77-5 6 19911001 Oct 1,1991 II. Carcinogenicity assessment now under review
2062 Methomyl 16752-77-5 7 19920101 Jan 1,1992 IV. Regulatory actions updated
2063 Methomyl 16752-77-5 8 19920801 Aug 1,1992 II. EPA's RfD/RfC and Crave workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of the IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2064 Methomyl 16752-77-5 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplemntary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2065 Methomyl 16752-77-5 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2066 Methoxychlor 72-43-5 1 19880907 Sep 7,1988 II. Carcinogen summary on-line
2067 Methoxychlor 72-43-5 2 19890201 Feb 1,1989 II.D.3. Primary contact's phone number corrected
2068 Methoxychlor 72-43-5 3 19890601 Jun 1,1989 II.D.3. Secondary contact deleted
2069 Methoxychlor 72-43-5 4 19891201 Dec 1,1989 VI. Bibliography on-line
2070 Methoxychlor 72-43-5 5 19900501 May 1,1990 I.A. Oral RfD now under review
2071 Methoxychlor 72-43-5 6 19900901 Sep 1,1990 I.A. Oral RfD summary on-line
2072 Methoxychlor 72-43-5 7 19900901 Sep 1,1990 III.A. Health Advisory on-line
2073 Methoxychlor 72-43-5 8 19900901 Sep 1,1990 VI.A. Oral RfD references added
2074 Methoxychlor 72-43-5 9 19900901 Sep 1,1990 VI.D. Health Advisory references added
2075 Methoxychlor 72-43-5 10 19901001 Oct 1,1990 II. Text edited
2076 Methoxychlor 72-43-5 11 19910801 Aug 1,1991 I.A.4. Khera citation year corrected
2077 Methoxychlor 72-43-5 12 19910801 Aug 1,1991 VI.A. Khera reference year corrected
2078 Methoxychlor 72-43-5 13 19911201 Dec 1,1991 I.B. Inhalation RfC now under review
2079 Methoxychlor 72-43-5 14 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2080 Methoxychlor 72-43-5 15 19920401 Apr 1,1992 I.B. Inhalation RfC message on-line
2081 Methoxychlor 72-43-5 16 19920401 Apr 1,1992 VI.B. Inhalation RfC references added
2082 Methoxychlor 72-43-5 17 19931201 Dec 1,1993 I.B. Replaced with expanded assessment
2083 Methoxychlor 72-43-5 18 19931201 Dec 1,1993 III.A. Health Advisory withdrawn
2084 Methoxychlor 72-43-5 19 19931201 Dec 1,1993 VI.B. References revised
2085 Methoxychlor 72-43-5 20 19931201 Dec 1,1993 VI.D. Health Advisory references withdrawn
2086 Methoxychlor 72-43-5 21 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2087 Methoxychlor 72-43-5 22 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
2088 Methoxychlor 72-43-5 23 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2089 2-Methoxyethanol 109-86-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2090 Methyl acrylate 96-33-3 1 19901201 Dec 1,1990 II. Carcinogen assessment on-line
2091 Methyl acrylate 96-33-3 2 19901201 Dec 1,1990 VI.C. Bibliography on-line
2092 Methyl acrylate 96-33-3 3 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2093 Methyl acrylate 96-33-3 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2094 Methyl chloride 74-87-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2095 Methyl chlorocarbonate 79-22-1 1 19880822 Aug 22,1988 I.A. Oral RfD summary on-line
2096 Methyl chlorocarbonate 79-22-1 2 19890401 Apr 1,1989 V. Supplementary data on-line
2097 Methyl chlorocarbonate 79-22-1 3 19890501 May 1,1989 I.A. Withdrawn pending further review
2098 Methyl chlorocarbonate 79-22-1 4 19911001 Oct 1,1991 II. Carcinogenicity assessment now under review
2099 Methyl chlorocarbonate 79-22-1 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2100 Methyl chlorocarbonate 79-22-1 6 19950801 Aug 1,1995 I.A., II. EPAs RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2101 Methyl chlorocarbonate 79-22-1 7 19960201 Feb 1,1996 I.A. Contact changed
2102 Methyl chlorocarbonate 79-22-1 8 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA PROgram Offices for this information.
2103 Methyl chlorocarbonate 79-22-1 9 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
2104 Methyl chlorocarbonate 79-22-1 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2105 Methyl ethyl ketone (MEK) 78-93-3 1 19870331 Mar 31,1987 I.A.6. Documentation corrected
2106 Methyl ethyl ketone (MEK) 78-93-3 2 19880301 Mar 1,1988 I.A.2. Paragraph 2 clarified
2107 Methyl ethyl ketone (MEK) 78-93-3 3 19890701 Jul 1,1989 II. Carcinogen assessment now under review
2108 Methyl ethyl ketone (MEK) 78-93-3 4 19890701 Jul 1,1989 VI. Bibliography on-line
2109 Methyl ethyl ketone (MEK) 78-93-3 5 19891201 Dec 1,1989 II. Carcinogen assessment on-line
2110 Methyl ethyl ketone (MEK) 78-93-3 6 19891201 Dec 1,1989 VI.C. Carcinogen references added
2111 Methyl ethyl ketone (MEK) 78-93-3 7 19900401 Apr 1,1990 I.B. Inhalation RfC now under review
2112 Methyl ethyl ketone (MEK) 78-93-3 8 19900601 Jun 1,1990 I.A. Oral RfD summary noted as pending change
2113 Methyl ethyl ketone (MEK) 78-93-3 9 19900601 Jun 1,1990 IV.F.1. EPA contact changed
2114 Methyl ethyl ketone (MEK) 78-93-3 10 19910801 Aug 1,1991 I.A. Withdrawn pending further review
2115 Methyl ethyl ketone (MEK) 78-93-3 11 19910801 Aug 1,1991 VI.A. Oral RfD references withdrawn
2116 Methyl ethyl ketone (MEK) 78-93-3 12 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2117 Methyl ethyl ketone (MEK) 78-93-3 13 19920701 Jul 1,1992 I.B. Inhalation RfC on-line
2118 Methyl ethyl ketone (MEK) 78-93-3 14 19920701 Jul 1,1992 VI.B. Inhalation RfC references on-line
2119 Methyl ethyl ketone (MEK) 78-93-3 15 19920801 Aug 1,1992 VI.B. Inhalation RfC references clarified
2120 Methyl ethyl ketone (MEK) 78-93-3 16 19921001 Oct 1,1992 I.A. Work group review date added
2121 Methyl ethyl ketone (MEK) 78-93-3 17 19921201 Dec 1,1992 I.A. Work group review date added
2122 Methyl ethyl ketone (MEK) 78-93-3 18 19930501 May 1,1993 I.A. Oral RfD summary replaced; RfD changed
2123 Methyl ethyl ketone (MEK) 78-93-3 19 19930501 May 1,1993 VI.A. Oral RfD references replaced
2124 Methyl ethyl ketone (MEK) 78-93-3 20 19930601 Jun 1,1993 VI.C. Minor correction
2125 Methyl ethyl ketone (MEK) 78-93-3 21 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS user were directed to the appropriate EPA Program Offices for this information.
2126 Methyl ethyl ketone (MEK) 78-93-3 22 20020109 Jan 9,2002 I., II. This chemical is being reassessed under the IRIS Program.
2127 Methyl ethyl ketone (MEK) 78-93-3 23 I., II., VI. RfD, RfC, and cancer sections updated
2128 Methyl ethyl ketone (MEK) 78-93-3 24 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2129 Methyl iodide 74-88-4 1 19920901 Sep 1,1992 I.B. inhalation RfC now under review
2130 Methyl iodide 74-88-4 2 19940301 Mar 1,1994 II. Carcinogenicity assessment now under review
2131 Methyl iodide 74-88-4 3 19941001 Oct 1,1994 All CASRN corrected
2132 Methyl iodide 74-88-4 4 19950801 Aug 1,1995 I.B., II. EPA's RfD/RfC and Crave workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2133 Methyl iodide 74-88-4 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisries, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2134 Methyl iodide 74-88-4 6 20181210 Dec 10,2018 Archived Values Requested by the IRIS Program to archive the chemicals with null values.
2135 Methyl iodide 74-88-4 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2136 Methyl isobutyl ketone (MIBK) 108-10-1 1 19880301 Mar 1,1988 I.A.2. Text revised
2137 Methyl isobutyl ketone (MIBK) 108-10-1 2 19890701 Jul 1,1989 VI. Bibliography on-line
2138 Methyl isobutyl ketone (MIBK) 108-10-1 3 19900401 Apr 1,1990 I.B. Inhalation RfD now under review
2139 Methyl isobutyl ketone (MIBK) 108-10-1 4 19910301 Mar 1,1991 I.A. Oral RfD withdrawn pending additional review
2140 Methyl isobutyl ketone (MIBK) 108-10-1 5 19910301 Mar 1,1991 VI. Bibliography on-line
2141 Methyl isobutyl ketone (MIBK) 108-10-1 6 19920101 Jan 1,1992 IV. Regulatory actions updated
2142 Methyl isobutyl ketone (MIBK) 108-10-1 7 19930801 Aug 1,1993 I.A. Work group review date added
2143 Methyl isobutyl ketone (MIBK) 108-10-1 8 19930801 Aug 1,1993 I.A. EPA contact changed
2144 Methyl isobutyl ketone (MIBK) 108-10-1 9 19950801 Aug 1,1995 I.A., I.B., VI. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2145 Methyl isobutyl ketone (MIBK) 108-10-1 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2146 Methyl isobutyl ketone (MIBK) 108-10-1 11 19981210 Dec 10,1998 I., II. This chemical is being reassessed under the IRIS Program.
2147 Methyl isobutyl ketone (MIBK) 108-10-1 12 I., II., VI. RfD, RfC and cancer sections updated
2148 Methyl isobutyl ketone (MIBK) 108-10-1 13 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2149 Methyl isocyanate 624-83-9 1 19910301 Mar 1,1991 I.B. Inhalation RfC message on-line
2150 Methyl isocyanate 624-83-9 2 19910301 Mar 1,1991 VI. Bibliography on-line
2151 Methyl isocyanate 624-83-9 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2152 Methyl isocyanate 624-83-9 4 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
2153 Methyl isocyanate 624-83-9 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2154 Methyl methacrylate 80-62-6 1 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementart Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2155 Methyl methacrylate 80-62-6 2 19980302 Mar 2,1998 I.A., I.B., II., VI. New RfD, RfC, cancer assessments
2156 Methyl methacrylate 80-62-6 3 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2157 Methyl parathion 298-00-0 1 19910301 Mar 1,1991 I.A.4. Citations added
2158 Methyl parathion 298-00-0 2 19910301 Mar 1,1991 III.A. Health Advisory on-line
2159 Methyl parathion 298-00-0 3 19910301 Mar 1,1991 VI. Bibliography on-line
2160 Methyl parathion 298-00-0 4 19920101 Jan 1,1992 IV. Regulatory actions updated
2161 Methyl parathion 298-00-0 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1995. IRIS users were directed to the appropriate EPA Program Offices for this information
2162 Methyl parathion 298-00-0 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2163 Methyl tert-butyl ether (MTBE) 1634-04-4 1 19910801 Aug 1,1991 I.B. Inhalation RfC now under review
2164 Methyl tert-butyl ether (MTBE) 1634-04-4 2 19911201 Dec 1,1991 I.B. Inhalation RfC on-line
2165 Methyl tert-butyl ether (MTBE) 1634-04-4 3 19911201 Dec 1,1991 VI. Bibliography on-line
2166 Methyl tert-butyl ether (MTBE) 1634-04-4 4 19930301 Mar 1,1993 I.A. Oral RfD now under review
2167 Methyl tert-butyl ether (MTBE) 1634-04-4 5 19930501 May 1,1993 I.B. Inhalation RfC noted as pending change
2168 Methyl tert-butyl ether (MTBE) 1634-04-4 6 19930501 May 1,1993 I.B.6. Work group review date added
2169 Methyl tert-butyl ether (MTBE) 1634-04-4 7 19930801 Aug 1,1993 I.B. Withdrawn; new RfC verified (in preparation)
2170 Methyl tert-butyl ether (MTBE) 1634-04-4 8 19930801 Aug 1,1993 I.B.6. Work group review date added
2171 Methyl tert-butyl ether (MTBE) 1634-04-4 9 19930801 Aug 1,1993 I.B.7. EPA contact changed
2172 Methyl tert-butyl ether (MTBE) 1634-04-4 10 19930801 Aug 1,1993 VI. Bibliography withdrawn
2173 Methyl tert-butyl ether (MTBE) 1634-04-4 11 19930901 Sep 1,1993 I.B. Inhalation RfC replaced; RfC changed
2174 Methyl tert-butyl ether (MTBE) 1634-04-4 12 19930901 Sep 1,1993 VI.B. Inhalation RfC refereences on-line
2175 Methyl tert-butyl ether (MTBE) 1634-04-4 13 19950801 Aug 1,1995 I.A. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2176 Methyl tert-butyl ether (MTBE) 1634-04-4 14 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2177 Methyl tert-butyl ether (MTBE) 1634-04-4 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2178 4-(2-Methyl-4-chlorophenoxy) butyric acid (MCPB) 94-81-5 1 19880929 Sep 29,1988 I.A. Oral RfD summary on-line
2179 4-(2-Methyl-4-chlorophenoxy) butyric acid (MCPB) 94-81-5 2 19901201 Dec 1,1990 I.A.2. Text edited
2180 4-(2-Methyl-4-chlorophenoxy) butyric acid (MCPB) 94-81-5 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2181 4-(2-Methyl-4-chlorophenoxy) butyric acid (MCPB) 94-81-5 4 19920701 Jul 1,1992 VI.A. Oral RfD references on-line
2182 4-(2-Methyl-4-chlorophenoxy) butyric acid (MCPB) 94-81-5 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2183 4-(2-Methyl-4-chlorophenoxy) butyric acid (MCPB) 94-81-5 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2184 2-(2-Methyl-4-chlorophenoxy)propionic acid (MCPP) 93-65-2 1 19880301 Mar 1,1988 I.A.1. Dose conversion clarified
2185 2-(2-Methyl-4-chlorophenoxy)propionic acid (MCPP) 93-65-2 2 19881201 Dec 1,1988 I.A. Withdrawn; new RfD verified (in preparation)
2186 2-(2-Methyl-4-chlorophenoxy)propionic acid (MCPP) 93-65-2 3 19890101 Jan 1,1989 I.A. Oral RfD summary replaced; RfD changed
2187 2-(2-Methyl-4-chlorophenoxy)propionic acid (MCPP) 93-65-2 4 19891201 Dec 1,1989 VI. Bibliography on-line
2188 2-(2-Methyl-4-chlorophenoxy)propionic acid (MCPP) 93-65-2 5 19900801 Aug 1,1990 I.A. Text edited
2189 2-(2-Methyl-4-chlorophenoxy)propionic acid (MCPP) 93-65-2 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2190 2-(2-Methyl-4-chlorophenoxy)propionic acid (MCPP) 93-65-2 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2191 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 1 19870828 Aug 28,1987 I.A. New Study - RfD changed
2192 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 2 19880301 Mar 1,1988 I.A.6. Verification date changed
2193 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 3 19880926 Sep 26,1988 I.A.1. Citation corrected
2194 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 4 19880926 Sep 26,1988 I.A.2. Text revised
2195 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 5 19880926 Sep 26,1988 I.A.3. UF text revised
2196 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 6 19880926 Sep 26,1988 I.A.4. Study descriptions revised
2197 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 7 19880926 Sep 26,1988 I.A.5. Confidence levels revised
2198 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 8 19910101 Jan 1,1991 I.A. Text edited
2199 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 9 19910301 Mar 1,1991 VI. Bibliography on-line
2200 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 10 19920101 Jan 1,1992 IV. Regulatory action updated
2201 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2202 2-Methyl-4-chlorophenoxyacetic acid (MCPA) 94-74-6 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2203 Methylene Diphenyl Diisocyanate (monomeric MDI) and polymeric MDI (PMDI) 101-68-8 1 19910801 Aug 1,1991 I.B. Inhalation RfC now under review
2204 Methylene Diphenyl Diisocyanate (monomeric MDI) and polymeric MDI (PMDI) 101-68-8 2 19930301 Mar 1,1993 I.B. Work group review date added
2205 Methylene Diphenyl Diisocyanate (monomeric MDI) and polymeric MDI (PMDI) 101-68-8 3 19940501 May 1,1994 I.B. Inhalation RfC now on-line
2206 Methylene Diphenyl Diisocyanate (monomeric MDI) and polymeric MDI (PMDI) 101-68-8 4 19940501 May 1,1994 VI.B. Inhalation RfC references on-line
2207 Methylene Diphenyl Diisocyanate (monomeric MDI) and polymeric MDI (PMDI) 101-68-8 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2208 Methylene Diphenyl Diisocyanate (monomeric MDI) and polymeric MDI (PMDI) 101-68-8 6 19980207 Feb 7,1998 I.B., II., VI. Revised RfC, new carcinogenicity assessment
2209 Methylene Diphenyl Diisocyanate (monomeric MDI) and polymeric MDI (PMDI) 101-68-8 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2210 4,4'-Methylene bis(N,N'-dimethyl)aniline 101-61-1 1 19890801 Aug 1,1989 II. Carcinogen summary on-line
2211 4,4'-Methylene bis(N,N'-dimethyl)aniline 101-61-1 2 19890801 Aug 1,1989 VI. Bibliography on-line
2212 4,4'-Methylene bis(N,N'-dimethyl)aniline 101-61-1 3 19900801 Aug 1,1990 II. Text edited
2213 4,4'-Methylene bis(N,N'-dimethyl)aniline 101-61-1 4 19930701 Jul 1,1993 VI.C. References alphabetized correctly
2214 4,4'-Methylene bis(N,N'-dimethyl)aniline 101-61-1 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2215 4,4'-Methylene bis(N,N'-dimethyl)aniline 101-61-1 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2216 Methylmercury (MeHg) 22967-92-6 1 19881201 Dec 1,1988 I.A. Principal study citations added
2217 Methylmercury (MeHg) 22967-92-6 2 19890201 Feb 1,1989 I.A. Oral RfD summary is being reevaluated
2218 Methylmercury (MeHg) 22967-92-6 3 19910801 Aug 1,1991 VI. Bibliography on-line
2219 Methylmercury (MeHg) 22967-92-6 4 19920101 Jan 1,1992 I.A.7. Secondary contact changed
2220 Methylmercury (MeHg) 22967-92-6 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2221 Methylmercury (MeHg) 22967-92-6 6 19940301 Mar 1,1994 I.A.6. Work group review date added
2222 Methylmercury (MeHg) 22967-92-6 7 19940401 Apr 1,1994 II. Carcinogenicity assessment now under review
2223 Methylmercury (MeHg) 22967-92-6 8 19940901 Sep 1,1994 I.A.6. Work group review date added
2224 Methylmercury (MeHg) 22967-92-6 9 19941001 Oct 1,1994 I.A.6. Work group review dates added
2225 Methylmercury (MeHg) 22967-92-6 10 19941101 Nov 1,1994 I.A.6. Work group review date added
2226 Methylmercury (MeHg) 22967-92-6 11 19941201 Dec 1,1994 I.A.6. Work group review date added
2227 Methylmercury (MeHg) 22967-92-6 12 19950501 May 1,1995 I.A. Oral RfD summary replaced; new RfD
2228 Methylmercury (MeHg) 22967-92-6 13 19950501 May 1,1995 VI.A. Oral RfD references replaced
2229 Methylmercury (MeHg) 22967-92-6 14 19950501 May 1,1995 II. Carcinogenicity assessment on-line
2230 Methylmercury (MeHg) 22967-92-6 15 19950501 May 1,1995 VI.C. Carcinogenicity assessment references on-line
2231 Methylmercury (MeHg) 22967-92-6 16 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2232 Methylmercury (MeHg) 22967-92-6 17 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2233 2-Methylnaphthalene 91-57-6 1 All First IRIS RfD, cancer assessment
2234 2-Methylnaphthalene 91-57-6 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2235 4-Methylphenol 106-44-5 1 19880822 Aug 22,1988 I.A. Oral RfD summary on-line
2236 4-Methylphenol 106-44-5 2 19890101 Jan 1,1989 I.A.6. Review statement deleted
2237 4-Methylphenol 106-44-5 3 19891101 Nov 1,1989 II. Carcinogen assessment now under review
2238 4-Methylphenol 106-44-5 4 19891101 Nov 1,1989 VI. Bibliography on-line
2239 4-Methylphenol 106-44-5 5 19900901 Sep 1,1990 I.A. Text edited
2240 4-Methylphenol 106-44-5 6 19900901 Sep 1,1990 II. Carcinogen assessment on-line
2241 4-Methylphenol 106-44-5 7 19900901 Sep 1,1990 VI.C. Carcinogen references added
2242 4-Methylphenol 106-44-5 8 19910801 Aug 1,1991 I.A. Withdrawn pending further review
2243 4-Methylphenol 106-44-5 9 19910801 Aug 1,1991 II.A.3. Kaiser reference year corrected
2244 4-Methylphenol 106-44-5 10 19910801 Aug 1,1991 All Name changed from p-Cresol
2245 4-Methylphenol 106-44-5 11 19910801 Aug 1,1991 VI.A. Oral RfD references withdrawn
2246 4-Methylphenol 106-44-5 12 19910801 Aug 1,1991 VI.C. Kaiser reference year corrected
2247 4-Methylphenol 106-44-5 13 19910801 Aug 1,1991 VI.C. Citations corrected
2248 4-Methylphenol 106-44-5 14 19920101 Jan 1,1992 I.B. Inhalation RfC now under review
2249 4-Methylphenol 106-44-5 15 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2250 4-Methylphenol 106-44-5 16 19920401 Apr 1,1992 I.B. Inhalation RfC now under review
2251 4-Methylphenol 106-44-5 17 19920401 Apr 1,1992 VI.B. Inhalation RfC references added
2252 4-Methylphenol 106-44-5 18 19930801 Aug 1,1993 I.A. Work group review date added
2253 4-Methylphenol 106-44-5 19 19930801 Aug 1,1993 I.A. EPA contact changed
2254 4-Methylphenol 106-44-5 20 19950801 Aug 1,1995 I.A., VI.A. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2255 4-Methylphenol 106-44-5 21 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2256 4-Methylphenol 106-44-5 22 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2257 3-Methylphenol 108-39-4 1 19880822 Aug 22,1988 I.A. ORal RfD summary on-line
2258 3-Methylphenol 108-39-4 2 19890101 Jan 1,1989 I.A.6. Review statement deleted
2259 3-Methylphenol 108-39-4 3 19891101 Nov 1,1989 II. Carcinogen assessment now under review
2260 3-Methylphenol 108-39-4 4 19891101 Nov 1,1989 VI. Bibliography on-line
2261 3-Methylphenol 108-39-4 5 19900901 Sep 1,1990 I.A. Text edited
2262 3-Methylphenol 108-39-4 6 19900901 Sep 1,1990 II. Carcinogen assessment on-line
2263 3-Methylphenol 108-39-4 7 19900901 Sep 1,1990 VI.C. Carcinogen references added
2264 3-Methylphenol 108-39-4 8 19910801 Aug 1,1991 II.A.3. Kaiser reference year corrected
2265 3-Methylphenol 108-39-4 9 19910801 Aug 1,1991 VI.C. Kaiser reference year corrected
2266 3-Methylphenol 108-39-4 10 19910801 Aug 1,1991 VI.C. Citations corrected
2267 3-Methylphenol 108-39-4 11 19910801 Aug 1,1991 All Name changed from m-Cresol
2268 3-Methylphenol 108-39-4 12 19920101 Jan 1,1992 I.A.7. Secondary contact changed
2269 3-Methylphenol 108-39-4 13 19920101 Jan 1,1992 I.B. Inhalation RfC now under review
2270 3-Methylphenol 108-39-4 14 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2271 3-Methylphenol 108-39-4 15 19920401 Apr 1,1992 I.B. Inhalation RfD message on-line
2272 3-Methylphenol 108-39-4 16 19920401 Apr 1,1992 VI.B. Inhalation RfC references added
2273 3-Methylphenol 108-39-4 17 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2274 3-Methylphenol 108-39-4 18 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2275 2-Methylphenol 95-48-7 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
2276 2-Methylphenol 95-48-7 2 19890101 Jan 1,1989 I.A.7. Contacts phone numbers corrected
2277 2-Methylphenol 95-48-7 3 19890401 Apr 1,1989 V. Supplementary data on-line
2278 2-Methylphenol 95-48-7 4 19890101 Jan 1,1989 II. Carcinogen assessment now under review
2279 2-Methylphenol 95-48-7 5 19891101 Nov 1,1989 VI. Bibliography on-line
2280 2-Methylphenol 95-48-7 6 19900901 Sep 1,1990 I.A. Text edited
2281 2-Methylphenol 95-48-7 7 19900901 Sep 1,1990 II. Carcinogen assessment on-line
2282 2-Methylphenol 95-48-7 8 19900901 Sep 1,1990 VI.C. Carcinogen references added
2283 2-Methylphenol 95-48-7 9 19910801 Aug 1,1991 II.A.3. Kaiser reference year corrected
2284 2-Methylphenol 95-48-7 10 19910801 Aug 1,1991 VI.C. Kaiser reference year corrected
2285 2-Methylphenol 95-48-7 11 19910801 Aug 1,1991 VI.C. Citations corrected
2286 2-Methylphenol 95-48-7 12 19910801 Aug 1,1991 All Name changed from o-Cresol
2287 2-Methylphenol 95-48-7 13 19920101 Jan 1,1992 I.A.7. Secondary contact changed
2288 2-Methylphenol 95-48-7 14 19920101 Jan 1,1992 I.B. Inhalation RfC now under review
2289 2-Methylphenol 95-48-7 15 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2290 2-Methylphenol 95-48-7 16 19920401 Apr 1,1992 I.B. Inhalation RfC message on-line
2291 2-Methylphenol 95-48-7 17 19920401 Apr 1,1992 VI.B. Inhalation references added
2292 2-Methylphenol 95-48-7 18 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Date were removed from IRIS on or before April 1997. IRIS users were directed to the appropirate EPA Program Offices for this information.
2293 2-Methylphenol 95-48-7 19 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2294 Metolachlor 51218-45-2 1 19870331 Mar 31,1987 IV. regulatory Action section on-line
2295 Metolachlor 51218-45-2 2 19880301 Mar 1,1988 I.A.5. Confidence levels revised
2296 Metolachlor 51218-45-2 3 19880630 Jun 30,1988 I.A. Withdrawn pending further review
2297 Metolachlor 51218-45-2 4 19880822 Aug 22,1988 II. Carcinogen summary on-line
2298 Metolachlor 51218-45-2 5 19880907 Sep 7,1988 I.A. Revised oral RfD summary added
2299 Metolachlor 51218-45-2 6 19881201 Dec 1,1988 I.A.1. Clarified effect
2300 Metolachlor 51218-45-2 7 19890201 Feb 1,1989 II.D.3. Secondary contact's area code corrected
2301 Metolachlor 51218-45-2 8 19901001 Oct 1,1990 I.A.1 Oral RfD corrected
2302 Metolachlor 51218-45-2 9 19910201 Feb 1,1991 I.A. Text edited
2303 Metolachlor 51218-45-2 10 19910201 Feb 1,1991 II. Text edited
2304 Metolachlor 51218-45-2 11 19910201 Feb 1,1991 VI. bibliography on-line
2305 Metolachlor 51218-45-2 12 19910301 Mar 1,1991 III.A. Health Advisory on-line
2306 Metolachlor 51218-45-2 13 19910301 Mar 1,1991 VI.D. Health Advisory on-line
2307 Metolachlor 51218-45-2 14 19920101 Jan 1,1992 IV. Regulatory actions updated
2308 Metolachlor 51218-45-2 15 19931001 Oct 1,1993 II.D.3. Primary contact changed; secondary's phone no. changed
2309 Metolachlor 51218-45-2 16 19940101 Jan 1,1994 I.A. Oral RfD noted as pending change
2310 Metolachlor 51218-45-2 17 19940101 Jan 1,1994 I.A.6. Work group review date added
2311 Metolachlor 51218-45-2 18 19950801 Aug 1,1995 .A., I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2312 Metolachlor 51218-45-2 19 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2313 Metolachlor 51218-45-2 20 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2314 Metribuzin 21087-64-9 1 19870331 Mar 31,1987 IV. Regulatory Action section on-line
2315 Metribuzin 21087-64-9 2 19880301 Mar 1,1988 I.A.5. Confidence levels revised
2316 Metribuzin 21087-64-9 3 19910301 Mar 1,1991 I.A.4. Citations added
2317 Metribuzin 21087-64-9 4 19910301 Mar 1,1991 III.A. Health Advisory on-line
2318 Metribuzin 21087-64-9 5 19910301 Mar 1,1991 VI. Bibliography on-line
2319 Metribuzin 21087-64-9 6 19920101 Jan 1,1992 IV. Regulatory actions updated
2320 Metribuzin 21087-64-9 7 19930301 Mar 1,1993 II. Carcinogenicty assessment now under review
2321 Metribuzin 21087-64-9 8 19931201 Dec 1,1993 II. Carcinogenicity assessment on-line
2322 Metribuzin 21087-64-9 9 19931201 Dec 1,1993 VI.C. Carcinogenicity assessment references on-line
2323 Metribuzin 21087-64-9 10 19940301 Mar 1,1994 I.A. Oral RfD noted as pending change
2324 Metribuzin 21087-64-9 11 19940301 Mar 1,1994 I.A.6. Work group review date added
2325 Metribuzin 21087-64-9 12 19950101 Jan 1,1995 I.A.6. Work group review date added
2326 Metribuzin 21087-64-9 13 19950801 Aug 1,1995 I.A., I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2327 Metribuzin 21087-64-9 14 19961201 Dec 1,1996 II.D.3. Primary contact removed
2328 Metribuzin 21087-64-9 15 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. The IRIS users were directed to the appropriate EPA Program Offices for this information.
2329 Metribuzin 21087-64-9 16 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2330 Mirex 2385-85-5 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
2331 Mirex 2385-85-5 2 19910401 Apr 1,1991 I.A.4. Citations added
2332 Mirex 2385-85-5 3 19910401 Apr 1,1991 VI. Bibliography on-line
2333 Mirex 2385-85-5 4 19920101 Jan 1,1992 IV. Regulatory actions updated
2334 Mirex 2385-85-5 5 19920801 Aug 1,1992 I.A. Withdrawn; new oral RfD verified (in preparation)
2335 Mirex 2385-85-5 6 19920801 Aug 1,1992 IV. Regulatory actions withdrawn
2336 Mirex 2385-85-5 7 19920801 Aug 1,1992 VI.A. Bibliography withdrawn
2337 Mirex 2385-85-5 8 19921001 Oct 1,1992 I.A. Oral RfD summary replaced; RfD changed
2338 Mirex 2385-85-5 9 19921001 Oct 1,1992 IV. Regulatory actions returned in conjunction with RfD
2339 Mirex 2385-85-5 10 19921001 Oct 1,1992 VI.A. Bibliography replaced
2340 Mirex 2385-85-5 11 19930701 Jul 1,1993 II. Carcinogenicity assessment now under review
2341 Mirex 2385-85-5 12 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substances that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2342 Mirex 2385-85-5 13 19970401 Apr 1,1997 III., IV.,V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2343 Mirex 2385-85-5 14 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
2344 Mirex 2385-85-5 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2345 Molinate 2212-67-1 1 19880926 Sep 26,1988 I.A. Oral RfD summary on-line
2346 Molinate 2212-67-1 2 19910201 Feb 1,1991 I.A. Text edited
2347 Molinate 2212-67-1 3 19910201 Feb 1,1991 VI. Biblioraphy on-line
2348 Molinate 2212-67-1 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2349 Molinate 2212-67-1 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2350 Molybdenum 7439-98-7 1 19910801 Aug 1,1991 I.A. Oral RfD now under review
2351 Molybdenum 7439-98-7 2 19921101 Nov 1,1992 I.A. Oral RfD summary on-line
2352 Molybdenum 7439-98-7 3 19921101 Nov 1,1992 VI.A. Oral RfD references on-line
2353 Molybdenum 7439-98-7 4 19930801 Aug 1,1993 I.A.2. Transposed number corrected in para. 1, line 13
2354 Molybdenum 7439-98-7 5 19970401 Apr 1,1997 III., IV.,V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA PRogram Offices for this information.
2355 Molybdenum 7439-98-7 6 20200619 Jun 19,2020 CASRN Added DTXSID and related links from/to Chemistry Dashboard and ATSDR.
2356 Molybdenum 7439-98-7 7 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
2357 Monochloramine 10599-90-3 1 19920801 Aug 1,1992 I.A. Oral RfD now under review
2358 Monochloramine 10599-90-3 2 19921101 Nov 1,1992 I.A. Oral RfD summary on-line
2359 Monochloramine 10599-90-3 3 19921101 Nov 1,1992 VI.A. Oral RfD references on-line
2360 Monochloramine 10599-90-3 4 19921101 Nov 1,1992 II. Carcinogenicity assessment now under review
2361 Monochloramine 10599-90-3 5 19930101 Jan 1,1993 II.D.2. Work group review date added
2362 Monochloramine 10599-90-3 6 19931201 Dec 1,1993 I.A.6. Work group review date added
2363 Monochloramine 10599-90-3 7 19931201 Dec 1,1993 II. Carcinogenicity assessment on-line
2364 Monochloramine 10599-90-3 8 19931201 Dec 1,1993 VI.C. Carcinogenicity references on-line
2365 Monochloramine 10599-90-3 9 19940101 Jan 1,1994 I.A. Oral RfD noted as pending change
2366 Monochloramine 10599-90-3 10 19940101 Jan 1,1994 I.A.6. Work group reiew date added
2367 Monochloramine 10599-90-3 11 19940301 Mar 1,1994 I.A. Oral RfD revised; study and number unchanged
2368 Monochloramine 10599-90-3 12 19940301 Mar 1,1994 VI.A. Oral RfD references revised
2369 Monochloramine 10599-90-3 13 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Actions were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2370 Monochloramine 10599-90-3 14 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
2371 Monochloramine 10599-90-3 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2372 Naled 300-76-5 1 19870930 Sep 30,1987 I.A.4. Study description added (number 2.)
2373 Naled 300-76-5 2 19870930 Sep 30,1987 IV. Pesticide Registration Standard added
2374 Naled 300-76-5 3 19890601 Jun 1,1989 I.A.6. Work group review date added
2375 Naled 300-76-5 4 19910301 Mar 1,1991 I.A.4. Citations added
2376 Naled 300-76-5 5 19910301 Mar 1,1991 VI. Bibliography on-line
2377 Naled 300-76-5 6 19920101 Jan 1,1992 IV. Regulatory actions updated
2378 Naled 300-76-5 7 19950101 Jan 1,1995 I.A. Oral RfD noted as pending change
2379 Naled 300-76-5 8 19950101 Jan 1,1995 I.A.6. Work group review date added
2380 Naled 300-76-5 9 19950801 Aug 1,1995 I.A., I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2381 Naled 300-76-5 10 19970401 Apr 1,1997 III., IV.,V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2382 Naled 300-76-5 11 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2383 Naphthalene 91-20-3 1 19901201 Dec 1,1990 II. Carcinogen assessment on-line
2384 Naphthalene 91-20-3 2 19901201 Dec 1,1990 VI. Bibliography on-line
2385 Naphthalene 91-20-3 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2386 Naphthalene 91-20-3 4 19920901 Sep 1,1992 II. Classification noted as pending change
2387 Naphthalene 91-20-3 5 19920901 Sep 1,1992 II.D.2. Work group review date added
2388 Naphthalene 91-20-3 6 19931101 Nov 1,1993 I.A. Work group review date added
2389 Naphthalene 91-20-3 7 19940901 Sep 1,1994 I.A. Work group review date added
2390 Naphthalene 91-20-3 8 19950501 May 1,1995 II. Pending change note replaced
2391 Naphthalene 91-20-3 9 19950501 May 1,1995 II.D.2. Work group review date added
2392 Naphthalene 91-20-3 10 19950701 Jul 1,1995 II. Pending change note replaced; see new note
2393 Naphthalene 91-20-3 11 19950801 Aug 1,1995 I.A, II., II.D.2. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2394 Naphthalene 91-20-3 12 19950801 Aug 1,1995 II. Note revised
2395 Naphthalene 91-20-3 13 19950801 Aug 1,1995 II.A.3. Paragraph 1 revised
2396 Naphthalene 91-20-3 14 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2397 Naphthalene 91-20-3 15 19980917 Sep 17,1998 I., II., VI. Revised RfD, RfC, carcinogenicity assessments
2398 Naphthalene 91-20-3 16 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
2399 Naphthalene 91-20-3 17 20210628 Jun 28,2021 All EPA removed the suspension and restarted the development of an update of this assessment.
2400 Naphthalene 91-20-3 18 20181220 Dec 20,2018 All EPA suspended the development of this assessment.
2401 Napropamide 15299-99-7 1 19890701 Jul 1,1989 I.A. Oral RfD summary on-line
2402 Napropamide 15299-99-7 2 19890701 Jul 1,1989 VI. Bibliography on-line
2403 Napropamide 15299-99-7 3 19900501 May 1,1990 I.A.2. Text edited
2404 Napropamide 15299-99-7 4 19900501 May 1,1990 I.A.4. Text edited
2405 Napropamide 15299-99-7 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices.
2406 Napropamide 15299-99-7 6 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2407 Napropamide 15299-99-7 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2408 Nickel carbonyl 13463-39-3 1 19891201 Dec 1,1989 VI. Bibliography on-line
2409 Nickel carbonyl 13463-39-3 2 19900601 Jun 1,1990 IV.A.1. Area code for EPA contact corrected
2410 Nickel carbonyl 13463-39-3 3 19910301 Mar 1,1991 II.A.1. Text edited
2411 Nickel carbonyl 13463-39-3 4 19920101 Jan 1,1992 IV. Regulatory actions updated
2412 Nickel carbonyl 13463-39-3 5 19920401 Apr 1,1992 IV.A.1. CAA regulatory action withdrawn
2413 Nickel carbonyl 13463-39-3 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2414 Nickel carbonyl 13463-39-3 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2415 Nickel refinery dust None 1 19900601 Jun 1,1990 II.A.3. Text revised
2416 Nickel refinery dust None 2 19900601 Jun 1,1990 VI. Bibliography on-line
2417 Nickel refinery dust None 3 19910101 Jan 1,1991 II. Text edited
2418 Nickel refinery dust None 4 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
2419 Nickel refinery dust None 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2420 Nickel refinery dust None 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Adivsories, EPA Regulatory Actions, and Supplementary Data were removed on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2421 Nickel refinery dust None 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2422 Nickel subsulfide 12035-72-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2423 Nickel, soluble salts Various 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2424 Nitrapyrin 1929-82-4 1 20181210 Dec 10,2018 Archived Values Requested by the IRIS Program to archive the chemicals with null values.
2425 Nitrapyrin 1929-82-4 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2426 Nitrate 14797-55-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2427 Nitric oxide 10102-43-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2428 Nitrite 14797-65-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2429 Nitrobenzene 98-95-3 1 20090206 Feb 6,2009 I., II. Revised the RfD; added an RfC; revised the cancer assessment.
2430 Nitrobenzene 98-95-3 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2431 Nitrogen dioxide 10102-44-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2432 Nitroguanidine 556-88-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2433 p-Nitrophenol 100-02-7 1 20181210 Dec 10,2018 Archived Values Requested by the IRIS Program to archive the chemicals with null values.
2434 p-Nitrophenol 100-02-7 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2435 2-Nitropropane 79-46-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2436 N-Nitroso-N-methylethylamine 10595-95-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2437 N-Nitroso-di-n-butylamine 924-16-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2438 N-Nitrosodi-N-propylamine 621-64-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2439 N-Nitrosodiethanolamine 1116-54-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2440 N-Nitrosodiethylamine 55-18-5 1 19870331 Mar 31,1987 IV. RQ added
2441 N-Nitrosodiethylamine 55-18-5 2 19870930 Sep 30,1987 IV. Water Quality Criteria added
2442 N-Nitrosodiethylamine 55-18-5 3 19880301 Mar 1,1988 II.A.1. Text clarified
2443 N-Nitrosodiethylamine 55-18-5 4 19880301 Mar 1,1988 II.B.1. Number rounded off
2444 N-Nitrosodiethylamine 55-18-5 5 19880301 Mar 1,1988 II.B.3. Text revised
2445 N-Nitrosodiethylamine 55-18-5 6 19880301 Mar 1,1988 II.B.4. Confidence statement revised
2446 N-Nitrosodiethylamine 55-18-5 7 19880301 Mar 1,1988 II.C.1. Number rounded off
2447 N-Nitrosodiethylamine 55-18-5 8 19880301 Mar 1,1988 II.C.4. Confidence statement revised
2448 N-Nitrosodiethylamine 55-18-5 9 19880301 Mar 1,1988 II.D.3. Secondary contact changed
2449 N-Nitrosodiethylamine 55-18-5 10 19900201 Feb 1,1990 II.A.3. Rajewsky et al., 1966 spelling corrected
2450 N-Nitrosodiethylamine 55-18-5 11 19900201 Feb 1,1990 VI. Bibliography on-line
2451 N-Nitrosodiethylamine 55-18-5 12 19900301 Mar 1,1990 VI.C. Druckrey, Peto and Mohr reference titles clarified
2452 N-Nitrosodiethylamine 55-18-5 13 19910101 Jan 1,1991 II. Text edited
2453 N-Nitrosodiethylamine 55-18-5 14 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
2454 N-Nitrosodiethylamine 55-18-5 15 19920101 Jan 1,1992 IV. Regulatory actions updated
2455 N-Nitrosodiethylamine 55-18-5 16 19930701 Jul 1,1993 II.D.3. Secondary contact's phone number changed
2456 N-Nitrosodiethylamine 55-18-5 17 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2457 N-Nitrosodiethylamine 55-18-5 18 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2458 N-Nitrosodimethylamine 62-75-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2459 N-Nitrosodiphenylamine 86-30-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2460 N-Nitrosopyrrolidine 930-55-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2461 Nonabromodiphenyl ether 63936-56-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2462 Norflurazon 27314-13-2 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2463 Norflurazon 27314-13-2 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2464 NuStar 85509-19-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2465 Octabromodiphenyl ether 32536-52-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2466 Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) 2691-41-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2467 Oryzalin 19044-88-3 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2468 Oryzalin 19044-88-3 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2469 Oxadiazon 19666-30-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2470 Oxamyl 23135-22-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2471 Oxyfluorfen 42874-03-3 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2472 Oxyfluorfen 42874-03-3 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2473 Paclobutrazol 76738-62-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2474 Paraquat 1910-42-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2475 Parathion 56-38-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2476 Pendimethalin 40487-42-1 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2477 Pendimethalin 40487-42-1 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2478 Pentabromodiphenyl ether 32534-81-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2479 2,2',4,4',5-Pentabromodiphenyl ether (BDE-99) 60348-60-9 1 20080630 Jun 30,2008 I., II. RfD, RfC, and cancer assessment first on line.
2480 2,2',4,4',5-Pentabromodiphenyl ether (BDE-99) 60348-60-9 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2481 Pentachlorobenzene 608-93-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2482 Pentachlorocyclopentadiene 25329-35-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2483 Pentachloronitrobenzene (PCNB) 82-68-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2484 Pentachlorophenol 87-86-5 1 20100930 Sep 30,2010 I., II., VI. RfD and cancer assessment sections updated. RfC discussion added.
2485 Pentachlorophenol 87-86-5 2 19880301 Mar 1,1988 III.A. Health Advisory added
2486 Pentachlorophenol 87-86-5 3 19880630 Jun 30,1988 I.A.6. Documentation year corrected
2487 Pentachlorophenol 87-86-5 4 19900101 Jan 1,1990 II. Carcinogen assessment now under review
2488 Pentachlorophenol 87-86-5 5 19900101 Jan 1,1990 VI. Bibliography on-line
2489 Pentachlorophenol 87-86-5 6 19900401 Apr 1,1990 I.A.2. NOEL corrected to NOAEL in last sentence, 1st paragraph
2490 Pentachlorophenol 87-86-5 7 19900701 Jul 1,1990 I.B. Inhalation RfC now under Review
2491 Pentachlorophenol 87-86-5 8 19900701 Jul 1,1990 IV.F.1. EPA contact changed
2492 Pentachlorophenol 87-86-5 9 19900801 Aug 1,1990 III.A.10 Primary contact changed
2493 Pentachlorophenol 87-86-5 10 19910301 Mar 1,1991 II. Carcinogenicity assessment on-line
2494 Pentachlorophenol 87-86-5 11 19910301 Mar 1,1991 VI.C. Carcinogenicity references added
2495 Pentachlorophenol 87-86-5 12 19920101 Jan 1,1992 I.A.7. Primary contact changed
2496 Pentachlorophenol 87-86-5 13 19920101 Jan 1,1992 IV. Regulatory actions updated
2497 Pentachlorophenol 87-86-5 14 19930201 Feb 1,1993 I.A.7. Minor text change
2498 Pentachlorophenol 87-86-5 15 19930701 Jul 1,1993 II.D.3. Primary contact's phone number changed
2499 Pentachlorophenol 87-86-5 16 19950801 Aug 1,1995 I.B. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2500 Pentachlorophenol 87-86-5 17 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2501 Pentachlorophenol 87-86-5 18 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2502 Pentafluoroethane 354-33-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2503 Perchlorate (ClO4) and Perchlorate Salts 7790-98-9 1 20050218 Feb 18,2005 All IRIS assessment for Perchlorate and Perchlorate Salts added to the database.
2504 Perchlorate (ClO4) and Perchlorate Salts 7790-98-9 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2505 Perfluorobutanoic Acid (PFBA) 375-22-4 1 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
2506 Perfluorobutanoic Acid (PFBA) 375-22-4 2 20220210 Feb 10,2022 Supporting document Added a link to the peer review meeting at the request of the public & program (DS).
2507 Perfluorodecanoic Acid (PFDA) 335-76-2 1 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
2508 Perfluorohexanesulfonic Acid (PFHxS) 355-46-4 1 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
2509 Perfluorohexanoic Acid (PFHxA) 307-24-4 1 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
2510 Perfluorohexanoic Acid (PFHxA) 307-24-4 2 20230410 Apr 10,2023 All Released the final report and key values.
2511 Perfluorononanoic Acid (PFNA) 375-95-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2512 Permethrin 52645-53-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2513 Phenanthrene 85-01-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2514 Phenmedipham 13684-63-4 1 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
2515 Phenmedipham 13684-63-4 2 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2516 Phenmedipham 13684-63-4 3 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2517 Phenol 108-95-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2518 m-Phenylenediamine 108-45-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2519 Phenylmercuric acetate 62-38-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2520 Phosalone 2310-17-0 1 20181210 Dec 10,2018 Archived Values Requested by the IRIS Program to archive the chemicals with null values.
2521 Phosalone 2310-17-0 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2522 Phosgene 75-44-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2523 Phosmet 732-11-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2524 Phosphine 7803-51-2 1 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
2525 Phosphine 7803-51-2 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2526 Phosphoric acid 7664-38-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2527 Phthalic anhydride 85-44-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2528 Picloram 1918-02-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2529 Pirimiphos-methyl 29232-93-7 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2530 Pirimiphos-methyl 29232-93-7 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2531 Polychlorinated Biphenyls (PCBs) 1336-36-3 1 19890501 May 1,1989 II. Carcinogen summary on-line
2532 Polychlorinated Biphenyls (PCBs) 1336-36-3 2 19900101 Jan 1,1990 II. Text edited
2533 Polychlorinated Biphenyls (PCBs) 1336-36-3 3 19900101 Jan 1,1990 VI. Bibliography on-line
2534 Polychlorinated Biphenyls (PCBs) 1336-36-3 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2535 Polychlorinated Biphenyls (PCBs) 1336-36-3 5 19940601 Jun 1,1994 I.A. Message only
2536 Polychlorinated Biphenyls (PCBs) 1336-36-3 6 19960101 Jan 1,1996 II. Note added to assessment
2537 Polychlorinated Biphenyls (PCBs) 1336-36-3 7 19961001 Oct 1,1996 II. File replaced; cancer potency of mixtures addressed
2538 Polychlorinated Biphenyls (PCBs) 1336-36-3 8 19961101 Nov 1,1996 VI.C. References revised
2539 Polychlorinated Biphenyls (PCBs) 1336-36-3 9 19970601 Jun 1,1997 II.C.3. Units corrected in Upper-bound Unit Risk
2540 Polychlorinated Biphenyls (PCBs) 1336-36-3 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2541 Polychlorinated Biphenyls (PCBs) 1336-36-3 11 20180516 May 16,2018 Footnotes to WOE Notes were added to the WOE-Oral and WOE-inhalation table to further explain these numbers. Additional updates were made to the inhalation unit risk and extrapolation method descriptions.
2542 Polychlorinated Biphenyls (PCBs) 1336-36-3 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2543 Polycyclic aromatic hydrocarbon (PAH) mixtures Various 1 20190927 Sep 27,2019 CASRN Set to various
2544 Polycyclic aromatic hydrocarbon (PAH) mixtures Various 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2545 Potassium cyanide 151-50-8 1 20100928 Sep 28,2010 I.A. Updated RfD with data from Hydrogen Cyanide and Cyanide Salts Assessment
2546 Potassium cyanide 151-50-8 2 20180927 Sep 27,2018 Noncancer Critical Updated the system value to other so it would show up in the advanced search.
2547 Potassium cyanide 151-50-8 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2548 Potassium silver cyanide 506-61-6 1 20100928 Sep 28,2010 I.A. Updated RfD with data from Hydrogen Cyanide and Cyanide Salts Assessment
2549 Potassium silver cyanide 506-61-6 2 20180927 Sep 27,2018 Noncancer Critical Updated the system value to other so it would show up in the advanced search.
2550 Potassium silver cyanide 506-61-6 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2551 Prochloraz 67747-09-5 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
2552 Prochloraz 67747-09-5 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2553 Prometon 1610-18-0 1 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
2554 Prometon 1610-18-0 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2555 Prometryn 7287-19-6 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2556 Prometryn 7287-19-6 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2557 Pronamide 23950-58-5 1 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
2558 Pronamide 23950-58-5 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2559 Propachlor 1918-16-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2560 Propanil 709-98-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2561 Propargite 2312-35-8 1 19900501 May 1,1990 I.A. Oral RfD summary on-line
2562 Propargite 2312-35-8 2 19900501 May 1,1990 VI. Bibliography on-line
2563 Propargite 2312-35-8 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2564 Propargite 2312-35-8 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2565 Propargite 2312-35-8 5 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2566 Propargite 2312-35-8 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2567 Propargyl alcohol 107-19-7 1 19901101 Nov 1,1990 I.A. Oral RfD summary on-line
2568 Propargyl alcohol 107-19-7 2 19901101 Nov 1,1990 VI. Bibliography on-line
2569 Propargyl alcohol 107-19-7 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2570 Propargyl alcohol 107-19-7 4 19930701 Jul 1,1993 I.A.6. Other EPA documentation added
2571 Propargyl alcohol 107-19-7 5 19940101 Jan 1,1994 I.A.1. Citation year changed to 1987
2572 Propargyl alcohol 107-19-7 6 19940101 Jan 1,1994 I.A.2. Citation year changed to 1987
2573 Propargyl alcohol 107-19-7 7 19940101 Jan 1,1994 I.A.6. Citation year changed to 1987
2574 Propargyl alcohol 107-19-7 8 19940101 Jan 1,1994 VI.A. Reference year changed to 1987
2575 Propargyl alcohol 107-19-7 9 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2576 Propargyl alcohol 107-19-7 10 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2577 Propazine 139-40-2 1 19870828 Aug 28,1987 I.A. UF reevaluated - RfD changed
2578 Propazine 139-40-2 2 19901001 Oct 1,1990 I.A.4. Citations added
2579 Propazine 139-40-2 3 19901001 Oct 1,1990 III.A. Health advisory on-line
2580 Propazine 139-40-2 4 19901001 Oct 1,1990 VI. Bibliography on-line
2581 Propazine 139-40-2 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2582 Propazine 139-40-2 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2583 Propazine 139-40-2 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2584 Propham 122-42-9 1 19891201 Dec 1,1989 VI. Bibliography on-line
2585 Propham 122-42-9 2 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2586 Propham 122-42-9 3 19930201 Feb 1,1993 III.A. Health Advisory on-line
2587 Propham 122-42-9 4 19930201 Feb 1,1993 VI.D. Health Advisory references on-line
2588 Propham 122-42-9 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2589 Propham 122-42-9 6 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
2590 Propham 122-42-9 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2591 Propiconazole 60207-90-1 1 19880822 Aug 22,1988 I.A.1. Dose conversion factor changed; RfD changed
2592 Propiconazole 60207-90-1 2 19880822 Aug 22,1988 I.A.2. Dose levels changed; reflects altered conversion factor
2593 Propiconazole 60207-90-1 3 19910201 Feb 1,1991 II. Carcinogen assessment now under review
2594 Propiconazole 60207-90-1 4 19920101 Jan 1,1992 I.A.4. Citations added
2595 Propiconazole 60207-90-1 5 19920101 Jan 1,1992 VI. Bibliography on-line
2596 Propiconazole 60207-90-1 6 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May 1995. Chemical substance reviews that were not completed by September, 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2597 Propiconazole 60207-90-1 7 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2598 Propiconazole 60207-90-1 8 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2599 Propiconazole 60207-90-1 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2600 beta-Propiolactone 57-57-8 1 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
2601 beta-Propiolactone 57-57-8 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2602 Propionaldehyde 123-38-6 1 20080930 Sep 30,2008 I., II. RfD, RfC, and cancer assessment first on line.
2603 Propionaldehyde 123-38-6 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2604 Propylene glycol 57-55-6 1 19910601 Jun 1,1991 I.B. Inhalation RfC message on-line
2605 Propylene glycol 57-55-6 2 19910601 Jun 1,1991 VI. Bibliography on-line
2606 Propylene glycol 57-55-6 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2607 Propylene glycol 57-55-6 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2608 Propylene glycol 57-55-6 5 20181210 Dec 10,2018 Archived Values Requested by the IRIS Program to archive the chemicals with null values.
2609 Propylene glycol 57-55-6 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2610 Propylene glycol monoethyl ether 52125-53-8 1 19910601 Jun 1,1991 I.B. Inhalation RfC message on-line
2611 Propylene glycol monoethyl ether 52125-53-8 2 19910601 Jun 1,1991 VI. Bibliography on-line
2612 Propylene glycol monoethyl ether 52125-53-8 3 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2613 Propylene glycol monoethyl ether 52125-53-8 4 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
2614 Propylene glycol monoethyl ether 52125-53-8 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2615 Propylene glycol monomethyl ether (PGME) 107-98-2 1 19910701 Jul 1,1991 I.B. Inhalation RfC summary on-line
2616 Propylene glycol monomethyl ether (PGME) 107-98-2 2 19910701 Jul 1,1991 VI. Bibliography on-line
2617 Propylene glycol monomethyl ether (PGME) 107-98-2 3 19930701 Jul 1,1993 I.B.1. 'E' notation added
2618 Propylene glycol monomethyl ether (PGME) 107-98-2 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2619 Propylene glycol monomethyl ether (PGME) 107-98-2 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2620 Propylene oxide 75-56-9 1 19901001 Oct 1,1990 II. Carcinogen assessment on-line
2621 Propylene oxide 75-56-9 2 19901001 Oct 1,1990 VI. Bibliography on-line
2622 Propylene oxide 75-56-9 3 19901101 Nov 1,1990 I.B. Inhalation RfC summary on-line
2623 Propylene oxide 75-56-9 4 19901101 Nov 1,1990 VI.B. Inhalation RfC references added
2624 Propylene oxide 75-56-9 5 19910101 Jan 1,1991 II. Text edited
2625 Propylene oxide 75-56-9 6 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
2626 Propylene oxide 75-56-9 7 19910201 Feb 1,1991 II.C.3. Information on extrapolation process included
2627 Propylene oxide 75-56-9 8 19910801 Aug 1,1991 VI.C. References clarified
2628 Propylene oxide 75-56-9 9 19910101 Jan 1,1991 IV. Regulatory Action section on-line
2629 Propylene oxide 75-56-9 10 19940301 Mar 1,1994 II.D.3. Contact's phone number changed
2630 Propylene oxide 75-56-9 11 19940401 Apr 1,1994 II.D.3. Contact changed
2631 Propylene oxide 75-56-9 12 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2632 Propylene oxide 75-56-9 13 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2633 Propyleneimine 75-55-8 1 19911201 Dec 1,1991 I.B. Inhalation RfC now under review
2634 Propyleneimine 75-55-8 2 19920101 Jan 1,1992 I.B. Inhalation RfC message on-line
2635 Propyleneimine 75-55-8 3 19920101 Jan 1,1992 VI. Bibliography on-line; no inhalation refs available
2636 Propyleneimine 75-55-8 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2637 Propyleneimine 75-55-8 5 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
2638 Propyleneimine 75-55-8 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2639 Pursuit 81335-77-5 1 19900101 Jan 1,1990 I.A. Oral RfD summary on-line
2640 Pursuit 81335-77-5 2 19900101 Jan 1,1990 VI. Bibliography on-line
2641 Pursuit 81335-77-5 3 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2642 Pursuit 81335-77-5 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2643 Pydrin 51630-58-1 1 19920101 Jan 1,1992 I.A.4. Citations added
2644 Pydrin 51630-58-1 2 19920101 Jan 1,1992 IV. Regulatory Action section added
2645 Pydrin 51630-58-1 3 19920101 Jan 1,1992 VI. Bibliography on-line
2646 Pydrin 51630-58-1 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2647 Pydrin 51630-58-1 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2648 Pyrene 129-00-0 1 19900901 Sep 1,1990 I.A. Oral RfD summary on-line
2649 Pyrene 129-00-0 2 19900901 Sep 1,1990 VI. Bibliography on-line
2650 Pyrene 129-00-0 3 19910101 Jan 1,1991 II. Carcinogen assessment on-line
2651 Pyrene 129-00-0 4 19910101 Jan 1,1991 VI.C. Carcinogen assessment references added
2652 Pyrene 129-00-0 5 19910701 Jul 1,1991 I.A.7. Primary and secondary contacts changed
2653 Pyrene 129-00-0 6 19910801 Aug 1,1991 VI.A. U.S. EPA, 1989 citation clarified
2654 Pyrene 129-00-0 7 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2655 Pyrene 129-00-0 8 19930701 Jul 1,1993 I.A.6. Other EPA Documentation added
2656 Pyrene 129-00-0 9 19940901 Sep 1,1994 I.B. Inhalation RfC now under review
2657 Pyrene 129-00-0 10 19950801 Aug 1,1995 I.B. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2658 Pyrene 129-00-0 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2659 Pyrene 129-00-0 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2660 Pyridine 110-86-1 1 19880301 Mar 1,1988 I.A.4. Text clarified
2661 Pyridine 110-86-1 2 19880630 Jun 30,1988 I.A.2. Clarified principal study
2662 Pyridine 110-86-1 3 19880926 Sep 26,1988 I.A.2. Corrected citation
2663 Pyridine 110-86-1 4 19880926 Sep 26,1988 I.A.4. Corrected citation
2664 Pyridine 110-86-1 5 19890601 Jun 1,1989 I.A.6. Work group review date corrected
2665 Pyridine 110-86-1 6 19900101 Jan 1,1990 VI. Bibliography on-line
2666 Pyridine 110-86-1 7 19920101 Jan 1,1992 I.A.7. Primary contact changed
2667 Pyridine 110-86-1 8 19920101 Jan 1,1992 IV. Regulatory actions updated
2668 Pyridine 110-86-1 9 19950801 Aug 1,1995 I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2669 Pyridine 110-86-1 10 19870401 Apr 1,1987 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this infomation.
2670 Pyridine 110-86-1 11 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2671 Quinalphos 13593-03-8 1 19920101 Jan 1,1992 I.A.4. Citations added
2672 Quinalphos 13593-03-8 2 19920101 Jan 1,1992 VI. Bibiography on-line
2673 Quinalphos 13593-03-8 3 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2674 Quinalphos 13593-03-8 4 20180927 Sep 27,2018 Noncancer Critical Updated the system value from none to other so it would show up in the advanced search.
2675 Quinalphos 13593-03-8 5 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
2676 Quinalphos 13593-03-8 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2677 Quinoline 91-22-5 1 I.,II.,VI Assessment first on-line
2678 Quinoline 91-22-5 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2679 Quinone 106-51-4 1 19901001 Oct 1,1990 I.B. Inhalation RfC message on-line
2680 Quinone 106-51-4 2 19901001 Oct 1,1990 VI. Bibliography on-line
2681 Quinone 106-51-4 3 19950301 Mar 1,1995 I.B. Agency Work Group Review date corrected
2682 Quinone 106-51-4 4 19970401 Apr 1,1997 III., IV, V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2683 Quinone 106-51-4 5 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
2684 Quinone 106-51-4 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2685 Radium 226,228 Various 1 19890101 Jan 1,1989 II. Withdrawn pending further review
2686 Radium 226,228 Various 2 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2687 Radium 226,228 Various 3 19930301 Mar 1,1993 II. Work Group review date added
2688 Radium 226,228 Various 4 19930501 May 1,1993 II. Work Group review date added
2689 Radium 226,228 Various 5 19930701 Jul 1,1993 II. EPA contact changed
2690 Radium 226,228 Various 6 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2691 Radium 226,228 Various 7 19970401 Apr 1,1997 II., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2692 Radium 226,228 Various 8 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
2693 Radium 226,228 Various 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2694 Radon 222 14859-67-7 1 19880301 Mar 1,1988 II.A.1. Classification clarified
2695 Radon 222 14859-67-7 2 19880301 Mar 1,1988 II.B.1. Number rounded off
2696 Radon 222 14859-67-7 3 19880630 Jun 30,1988 II.D.3. Contacts changed
2697 Radon 222 14859-67-7 4 19890101 Jan 1,1989 II. Withdrawn pending further review
2698 Radon 222 14859-67-7 5 19890701 Jul 1,1989 II. Withdrawn; new assessment verified (in preparation)
2699 Radon 222 14859-67-7 6 19920101 Jan 1,1992 IV. Regulatory actions updated
2700 Radon 222 14859-67-7 7 19921101 Nov 1,1992 II. Work group review date added
2701 Radon 222 14859-67-7 8 19930301 Mar 1,1993 II. Work group review date added
2702 Radon 222 14859-67-7 9 19930501 May 1,1993 II. Work group review date added
2703 Radon 222 14859-67-7 10 19930701 Jul 1,1993 II. EPA contact changed
2704 Radon 222 14859-67-7 11 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2705 Radon 222 14859-67-7 12 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2706 Radon 222 14859-67-7 13 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
2707 Radon 222 14859-67-7 14 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2708 Refractory ceramic fibers None 1 19920901 Sep 1,1992 II. Carcinogenicity assessment under review on 03/31/1992
2709 Refractory ceramic fibers None 2 19920901 Sep 1,1992 II. Carcinogenicity assessment on-line
2710 Refractory ceramic fibers None 3 19920901 Sep 1,1992 VI. Bibliography on-line
2711 Refractory ceramic fibers None 4 19921001 Oct 1,1992 VI.C. Minor corrections to references
2712 Refractory ceramic fibers None 5 19930701 Jul 1,1993 II.D.1. Other EPA Documentation heading removed
2713 Refractory ceramic fibers None 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2714 Refractory ceramic fibers None 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2715 Resmethrin 10453-86-8 1 19880926 Sep 26,1988 I.A. Oral RfD summary on-line
2716 Resmethrin 10453-86-8 2 19891001 Oct 1,1989 VI. Bibliography on-line
2717 Resmethrin 10453-86-8 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2718 Resmethrin 10453-86-8 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2719 Resmethrin 10453-86-8 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2720 Rotenone 83-79-4 1 19880907 Sep 7,1988 I.A. Oral RfD summary on-line
2721 Rotenone 83-79-4 2 19891001 Oct 1,1989 VI. Bibliography on-line
2722 Rotenone 83-79-4 3 19910601 Jun 1,1991 II. Carcinogen assessment now under review
2723 Rotenone 83-79-4 4 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2724 Rotenone 83-79-4 5 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2725 Rotenone 83-79-4 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2726 Rotenone 83-79-4 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2727 Savey 78587-05-0 1 19880926 Sep 26,1988 I.A. Oral RfD summary on-line
2728 Savey 78587-05-0 2 19890501 May 1,1989 II. Carcinogen assessment now under review
2729 Savey 78587-05-0 3 19891001 Oct 1,1989 VI. Bibliography on-line
2730 Savey 78587-05-0 4 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2731 Savey 78587-05-0 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2732 Savey 78587-05-0 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2733 Selenious acid 7783-00-8 1 19890501 May 1,1989 I.A. Oral RfD summary noted as pending change
2734 Selenious acid 7783-00-8 2 19900101 Jan 1,1990 I.A.5. Corrected citation year
2735 Selenious acid 7783-00-8 3 19900101 Jan 1,1990 VI. Bibliography on-line
2736 Selenious acid 7783-00-8 4 19910301 Mar 1,1991 II. Carcinogenicity assessment on-line
2737 Selenious acid 7783-00-8 5 19910301 Mar 1,1991 VI.C. Carcinogenicity references added
2738 Selenious acid 7783-00-8 6 19910501 May 1,1991 I.A. Withdrawn; new Oral RfD verfied (in preparation)
2739 Selenious acid 7783-00-8 7 19910501 May 1,1991 VI.A. Oral RfD references withdrawn
2740 Selenious acid 7783-00-8 8 19910601 Jun 1,1991 I.A. Oral RfD summary replaced; RfD changed
2741 Selenious acid 7783-00-8 9 19910601 Jun 1,1991 VI.A. Oral RfD references replaced
2742 Selenious acid 7783-00-8 10 19910701 Jul 1,1991 I.A.6. Work group review date added
2743 Selenious acid 7783-00-8 11 19910701 Jul 1,1991 I.A.7. Primary contact's phone number corrected
2744 Selenious acid 7783-00-8 12 19910901 Sep 1,1991 I.A.3. Text revised
2745 Selenious acid 7783-00-8 13 19910901 Sep 1,1991 I.A.5. Text revised
2746 Selenious acid 7783-00-8 14 19920101 Jan 1,1992 IV. Regulatory actions added
2747 Selenious acid 7783-00-8 15 19930701 Jul 1,1993 II.D.3. Primary contact's phone number changed
2748 Selenious acid 7783-00-8 16 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2749 Selenious acid 7783-00-8 17 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2750 Selenium and Compounds 7782-49-2 1 19910301 Mar 1,1991 II. Carcinogenicity assessment on-line
2751 Selenium and Compounds 7782-49-2 2 19910301 Mar 1,1991 VI. Bibliography on-line
2752 Selenium and Compounds 7782-49-2 3 19910601 Jun 1,1991 II.A.2. Para 4: Correct Shamber&Willis to Shamberger&Willis
2753 Selenium and Compounds 7782-49-2 4 19910601 Jun 1,1991 I.A. Oral RfD summary on-line
2754 Selenium and Compounds 7782-49-2 5 19910601 Jun 1,1991 VI.A. Oral RfD references added
2755 Selenium and Compounds 7782-49-2 6 19910901 Sep 1,1991 I.A.2. Paragraph 2, line 2: number corrected to 5/349
2756 Selenium and Compounds 7782-49-2 7 19910901 Sep 1,1991 I.A.3. Text revised
2757 Selenium and Compounds 7782-49-2 8 19910901 Sep 1,1991 I.A.5. Confidence in RfD changed; text revised
2758 Selenium and Compounds 7782-49-2 9 19920101 Jan 1,1992 IV. Regulatory section on-line
2759 Selenium and Compounds 7782-49-2 10 19930701 Jul 1,1993 II.D.3. Primary contact's phone number changed
2760 Selenium and Compounds 7782-49-2 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2761 Selenium and Compounds 7782-49-2 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2762 Selenium sulfide 7446-34-6 1 19910301 Mar 1,1991 II. Carcinogenicity assessment on-line
2763 Selenium sulfide 7446-34-6 2 19910301 Mar 1,1991 VI. Bibliography on-line
2764 Selenium sulfide 7446-34-6 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2765 Selenium sulfide 7446-34-6 4 19930701 Jul 1,1993 II.D.3. Primary contact's phone number changed
2766 Selenium sulfide 7446-34-6 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2767 Selenium sulfide 7446-34-6 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2768 Selenourea 630-10-4 1 19870331 Mar 31,1987 I.A.6. Documentation corrected
2769 Selenourea 630-10-4 2 19890501 May 1,1989 I.A. Oral RfDsummary noted as pending change
2770 Selenourea 630-10-4 3 19891201 Dec 1,1989 VI. Bibliography on-line
2771 Selenourea 630-10-4 4 19910501 May 1,1991 I.A. Oral RfD withdrawn pending additional review
2772 Selenourea 630-10-4 5 19910501 May 1,1991 VI. Bibliography withdrawn
2773 Selenourea 630-10-4 6 19920101 Jan 1,1992 IV. Regulatory actions withdrawn
2774 Selenourea 630-10-4 7 19920601 Jun 1,1992 I.A. Work group review dates added
2775 Selenourea 630-10-4 8 19950801 Aug 1,1995 I.A., VI. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed before September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2776 Selenourea 630-10-4 9 19960201 Feb 1,1996 I.A. Contact changed
2777 Selenourea 630-10-4 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2778 Selenourea 630-10-4 11 20181219 Dec 19,2018 Archived Key Values Archived this assessment because there were null key values.
2779 Selenourea 630-10-4 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2780 Sethoxydim 74051-80-2 1 19880301 Mar 1,1988 I.A.5. Confidence levels revised
2781 Sethoxydim 74051-80-2 2 19890701 Jul 1,1989 I.A. Withdrawn; new Oral RfD verified (in preparation)
2782 Sethoxydim 74051-80-2 3 19891101 Nov 1,1989 I.A. Oral RfD summary replaced; RfD changed
2783 Sethoxydim 74051-80-2 4 19891101 Nov 1,1989 VI. Bibliography on-line
2784 Sethoxydim 74051-80-2 5 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2785 Sethoxydim 74051-80-2 6 19970401 Apr 1,1997 II., IV., V. Drinking Water Health Advisoies, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2786 Sethoxydim 74051-80-2 7 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
2787 Sethoxydim 74051-80-2 8 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2788 Silver 7440-22-4 1 19880301 Mar 1,1988 I.A.4. Text revised
2789 Silver 7440-22-4 2 19880301 Mar 1,1988 I.A.7. Seconary contact changed
2790 Silver 7440-22-4 3 19880630 Jun 30,1988 I.A.7. Primary contact changed
2791 Silver 7440-22-4 4 19890601 Jun 1,1989 II. Carcinogen summary on-line
2792 Silver 7440-22-4 5 19890601 Jun 1,1989 VI. Bibliography on-line
2793 Silver 7440-22-4 6 19890801 Aug 1,1989 VI.A. Oral RfD references added
2794 Silver 7440-22-4 7 19910301 Mar 1,1991 I.A. Oral RfD summary noted as pending change
2795 Silver 7440-22-4 8 19910801 Aug 1,1991 I.A. Withdrawn; new oral RfD verified (in preparation)
2796 Silver 7440-22-4 9 19910801 Aug 1,1991 VI.A. Oral RfD references withdrawn
2797 Silver 7440-22-4 10 19911201 Dec 1,1991 I.A. Oral RfD summary replaced; RfD changed
2798 Silver 7440-22-4 11 19911201 Dec 1,1991 VI.A. Oral RfD references replaced
2799 Silver 7440-22-4 12 19920101 Jan 1,1992 IV. Regulatory actions updated
2800 Silver 7440-22-4 13 19961201 Dec 1,1996 I.A.7. Secondary contact removed
2801 Silver 7440-22-4 14 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2802 Silver 7440-22-4 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2803 Silver cyanide 506-64-9 1 19870331 Mar 31,1987 I.A.6. Documentation corrected
2804 Silver cyanide 506-64-9 2 19880301 Mar 1,1988 I.A.5. Confidence levels raised
2805 Silver cyanide 506-64-9 3 19900101 Jan 1,1990 I.A.2. Add Philbrick et al. 1979 citation
2806 Silver cyanide 506-64-9 4 19900101 Jan 1,1990 VI. Bibliography on- line
2807 Silver cyanide 506-64-9 5 19920101 Jan 1,1992 I.A.7. Primary contact changed
2808 Silver cyanide 506-64-9 6 19920101 Jan 1,1992 IV. Regulatory actions updated
2809 Silver cyanide 506-64-9 7 19960201 Feb 1,1996 I.A.7. Contact changed
2810 Silver cyanide 506-64-9 8 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2811 Silver cyanide 506-64-9 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2812 Simazine 122-34-9 1 19880301 Mar 1,1988 I.A.4. Data gaps revised
2813 Simazine 122-34-9 2 19890701 Jul 1,1989 I.A. Withdrawn; new Oral RfD verified (in preparation)
2814 Simazine 122-34-9 3 19890901 Sep 1,1989 II. Carcinogen assessment now under review
2815 Simazine 122-34-9 4 19891101 Nov 1,1989 I.A. Oral RfD summary replaced; RfD changed
2816 Simazine 122-34-9 5 19891101 Nov 1,1989 VI. Bibliography on-line
2817 Simazine 122-34-9 6 19910901 Sep 1,1991 I.A. Withdrawn; new Oral RfD verified (in preparation)
2818 Simazine 122-34-9 7 19910901 Sep 1,1991 VI.A. Bibliography withdrawn
2819 Simazine 122-34-9 8 19920101 Jan 1,1992 IV. Regulatory actions updated
2820 Simazine 122-34-9 9 19930901 Sep 1,1993 I.A. Oral RfD summary replaced; RfD changed
2821 Simazine 122-34-9 10 19940401 Apr 1,1994 I.A.1. Study type corrected to 2-year
2822 Simazine 122-34-9 11 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September 1995.
2823 Simazine 122-34-9 12 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2824 Simazine 122-34-9 13 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2825 Sodium azide 26628-22-8 1 19900101 Jan 1,1990 VI. Bibliography on-line
2826 Sodium azide 26628-22-8 2 19920101 Jan 1,1992 I.A.7. Primary contact changed
2827 Sodium azide 26628-22-8 3 19920101 Jan 1,1992 IV. Regulatory actions updated
2828 Sodium azide 26628-22-8 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2829 Sodium azide 26628-22-8 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2830 Sodium cyanide 143-33-9 1 19870331 Mar 31,1987 I.A.6. Documentation corrected
2831 Sodium cyanide 143-33-9 2 19880301 Mar 1,1988 III.A. Health Advisory
2832 Sodium cyanide 143-33-9 3 19900801 Aug 1,1990 IV.F.1. EPA contact changed
2833 Sodium cyanide 143-33-9 4 19910601 Jun 1,1991 VI. Bibliography on-line
2834 Sodium cyanide 143-33-9 5 19920101 Jan 1,1992 I.A.7. Primary contact changed
2835 Sodium cyanide 143-33-9 6 19920101 Jan 1,1992 IV. Regulatory actions updated
2836 Sodium cyanide 143-33-9 7 19960201 Feb 1,1996 I.A.7. Contact changed
2837 Sodium cyanide 143-33-9 8 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2838 Sodium cyanide 143-33-9 10 20180927 Sep 27,2018 Noncancer Critical Updated the system value to other so it would show up in the advanced search.
2839 Sodium cyanide 143-33-9 12 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2840 Sodium diethyldithiocarbamate 148-18-5 1 19880301 Mar 1,1988 I.A.1. Dose conversion clarified
2841 Sodium diethyldithiocarbamate 148-18-5 2 19900101 Jan 1,1990 VI. Bibliography on-line
2842 Sodium diethyldithiocarbamate 148-18-5 3 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2843 Sodium diethyldithiocarbamate 148-18-5 4 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2844 Sodium fluoroacetate 62-74-8 1 19910501 May 1,1991 I.A. Oral RfD summary on-line
2845 Sodium fluoroacetate 62-74-8 2 19910501 May 1,1991 VI. Bibliography on-line
2846 Sodium fluoroacetate 62-74-8 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2847 Sodium fluoroacetate 62-74-8 4 19930701 Jul 1,1993 I.A.6. Other EPA Documentation added
2848 Sodium fluoroacetate 62-74-8 5 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2849 Sodium fluoroacetate 62-74-8 6 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2850 Strontium 7440-24-6 1 19910801 Aug 1,1991 I.A. Oral RfD now uder review
2851 Strontium 7440-24-6 2 19920801 Aug 1,1992 I.A.6. Work group review dates added
2852 Strontium 7440-24-6 3 19921001 Oct 1,1992 I.A. Oral RfD summary on-line
2853 Strontium 7440-24-6 4 19921001 Oct 1,1992 VI.A. Oral RfD references on-line
2854 Strontium 7440-24-6 5 19961201 Dec 1,1996 I.A.7. Primary contact removed
2855 Strontium 7440-24-6 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2856 Strontium 7440-24-6 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2857 Strychnine 57-24-9 1 19870331 Mar 31,1987 I.A.6. Documentation corrected
2858 Strychnine 57-24-9 2 19880301 Mar 1,1988 I.A.4. Text deleted
2859 Strychnine 57-24-9 3 19900101 Jan 1,1990 VI. Bibliography on-line
2860 Strychnine 57-24-9 4 19920101 Jan 1,1992 I.A.7. Primary contact changed
2861 Strychnine 57-24-9 5 19920101 Jan 1,1992 IV. Regulatory actions updated
2862 Strychnine 57-24-9 6 19870401 Apr 1,1987 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2863 Strychnine 57-24-9 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2864 Styrene 100-42-5 1 19880630 Jun 30,1988 I.A.7. cONTACTS CHANGED
2865 Styrene 100-42-5 2 19891001 Oct 1,1989 I.B. Inhalation RfD now under review
2866 Styrene 100-42-5 3 19900201 Feb 1,1990 VI. Bibliography on-line
2867 Styrene 100-42-5 4 19900501 May 1,1990 I.A. Oral RfD summary noted as pending change
2868 Styrene 100-42-5 5 19900501 May 1,1990 II. Carcinogen assessment now under review
2869 Styrene 100-42-5 6 19900901 Sep 1,1990 I.A. Text edited
2870 Styrene 100-42-5 7 19900901 Sep 1,1990 III.A. Health Advisory on-line
2871 Styrene 100-42-5 8 19900901 Sep 1,1990 VI.D. Health Advisory references added
2872 Styrene 100-42-5 9 19920101 Jan 1,1992 IV. Regulatory actions updated
2873 Styrene 100-42-5 10 19921101 Nov 1,1992 I.B. Inhalation RfC summary on-line
2874 Styrene 100-42-5 11 19921101 Nov 1,1992 VI.B. Inhalation RfC references on-line
2875 Styrene 100-42-5 12 19930701 Jul 1,1993 I.B.1. 'E' notation added
2876 Styrene 100-42-5 13 19950801 Aug 1,1995 I.A., II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2877 Styrene 100-42-5 14 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2878 Styrene 100-42-5 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2879 Systhane 88671-89-0 1 19880926 Sep 26,1988 I.A. Oral RfD summary on-line
2880 Systhane 88671-89-0 2 19891001 Oct 1,1989 VI. Bibliography on-line
2881 Systhane 88671-89-0 3 19950101 Jan 1,1995 I.A. Oral RfD noted as pending change
2882 Systhane 88671-89-0 4 19950101 Jan 1,1995 I.A.6. Work group review date added
2883 Systhane 88671-89-0 5 19950801 Aug 1,1995 I.A., I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2884 Systhane 88671-89-0 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April, 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2885 Systhane 88671-89-0 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2886 Tebuthiuron 34014-18-1 1 19880822 Aug 22,1988 I.A.1. NOEL corrected; RfD changed
2887 Tebuthiuron 34014-18-1 2 19880822 Aug 22,1988 I.A.2. Text changed to reflect corrected dose levels
2888 Tebuthiuron 34014-18-1 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2889 Tebuthiuron 34014-18-1 4 19920701 Jul 1,1992 I.A.1. Short citation clarified
2890 Tebuthiuron 34014-18-1 5 19920701 Jul 1,1992 I.A.2. Principal study clarified
2891 Tebuthiuron 34014-18-1 6 19920701 Jul 1,1992 I.A.4. Citations added
2892 Tebuthiuron 34014-18-1 7 19920701 Jul 1,1992 VI.A. Oral RfD references on-line
2893 Tebuthiuron 34014-18-1 8 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2894 Tebuthiuron 34014-18-1 9 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2895 Terbacil 5902-51-2 1 19870331 Mar 31,1987 IV. Regulatory Action section on-line
2896 Terbacil 5902-51-2 2 19890901 Sep 1,1989 I.A. Oral RfD summary sheet revised
2897 Terbacil 5902-51-2 3 19890901 Sep 1,1989 I.A.5. Confidence levels changed
2898 Terbacil 5902-51-2 4 19890901 Sep 1,1989 VI. Bibliography on-line
2899 Terbacil 5902-51-2 5 19920101 Jan 1,1992 IV. Regulatory action updated
2900 Terbacil 5902-51-2 6 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2901 Terbacil 5902-51-2 7 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2902 Terbutryn 886-50-0 1 19880926 Sep 26,1988 I.A. Oral RfD summary on-line
2903 Terbutryn 886-50-0 2 19891201 Dec 1,1989 VI. Bibliography on-line
2904 Terbutryn 886-50-0 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2905 Terbutryn 886-50-0 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2906 Terbutryn 886-50-0 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2907 Tetrabromodiphenyl ether 40088-47-9 1 19900801 Aug 1,1990 II. Carcinogen assessment on-line
2908 Tetrabromodiphenyl ether 40088-47-9 2 19900801 Aug 1,1990 VI. Bibliography on-line
2909 Tetrabromodiphenyl ether 40088-47-9 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
2910 Tetrabromodiphenyl ether 40088-47-9 4 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2911 Tetrabromodiphenyl ether 40088-47-9 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2912 2,2',4,4'-Tetrabromodiphenyl ether (BDE-47) 5436-43-1 1 20080630 Jun 30,2008 I., II. RfD, RfC, and cancer assessment first on line.
2913 2,2',4,4'-Tetrabromodiphenyl ether (BDE-47) 5436-43-1 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2914 1,2,4,5-Tetrachlorobenzene 95-94-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2915 Tetrachlorocyclopentadiene 695-77-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2916 2,3,7,8-Tetrachlorodibenzo-p-dioxin 1746-01-6 1 20120217 Feb 17,2012 I.A. RfD added
2917 2,3,7,8-Tetrachlorodibenzo-p-dioxin 1746-01-6 2 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
2918 1,1,1,2-Tetrachloroethane 630-20-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2919 1,1,2,2-Tetrachloroethane 79-34-5 1 19880301 Mar 1,1988 II.B.4. Confidence statement revised
2920 1,1,2,2-Tetrachloroethane 79-34-5 2 19880301 Mar 1,1988 II.C.4. Confidence statement revised
2921 1,1,2,2-Tetrachloroethane 79-34-5 3 19880301 Mar 1,1988 II.D.3. Secondary contact changed
2922 1,1,2,2-Tetrachloroethane 79-34-5 4 19890801 Aug 1,1989 I.A. Oral RfD under review
2923 1,1,2,2-Tetrachloroethane 79-34-5 5 19890801 Aug 1,1989 VI. Bibliography on-line
2924 1,1,2,2-Tetrachloroethane 79-34-5 6 19910101 Jan 1,1991 II. Text edited
2925 1,1,2,2-Tetrachloroethane 79-34-5 7 19910101 Jan 1,1991 II.C.1. Inhalation slope factor removed (global change)
2926 1,1,2,2-Tetrachloroethane 79-34-5 8 19920101 Jan 1,1992 IV. Regulatory Actions updated
2927 1,1,2,2-Tetrachloroethane 79-34-5 9 19940201 Feb 1,1994 II.D.3. Primary contact's phone number changed
2928 1,1,2,2-Tetrachloroethane 79-34-5 10 19950801 Aug 1,1995 I.A. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2929 1,1,2,2-Tetrachloroethane 79-34-5 11 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2930 1,1,2,2-Tetrachloroethane 79-34-5 12 20021203 Dec 3,2002 II.D.2. Screening-Level Literature Review Findings message has been added.
2931 1,1,2,2-Tetrachloroethane 79-34-5 13 20050307 Mar 7,2005 II.B.1. Text edited
2932 1,1,2,2-Tetrachloroethane 79-34-5 14 20100930 Sep 30,2010 I., II., VI. RfD and cancer assessment updated RfC discussion added.
2933 1,1,2,2-Tetrachloroethane 79-34-5 15 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2934 Tetrachloroethylene (Perchloroethylene) 127-18-4 1 19871223 Dec 23,1987 I.A. RfD withdrawn pending further review
2935 Tetrachloroethylene (Perchloroethylene) 127-18-4 2 19880301 Mar 1,1988 I.A. Revised Oral RfD summary added - RfD changed
2936 Tetrachloroethylene (Perchloroethylene) 127-18-4 3 19880301 Mar 1,1988 III.A. Health Advisory added
2937 Tetrachloroethylene (Perchloroethylene) 127-18-4 4 19890701 Jul 1,1989 VI. Bibliography on-line
2938 Tetrachloroethylene (Perchloroethylene) 127-18-4 5 19900601 Jun 1,1990 IV.A.1. Area code for EPA contact corrected
2939 Tetrachloroethylene (Perchloroethylene) 127-18-4 6 19900601 Jun 1,1990 IV.F.1. EPA contact changed
2940 Tetrachloroethylene (Perchloroethylene) 127-18-4 7 19920101 Jan 1,1992 IV. Regulatory actions updated
2941 Tetrachloroethylene (Perchloroethylene) 127-18-4 8 19920401 Apr 1,1992 IV. Regulatory action section withdrawn
2942 Tetrachloroethylene (Perchloroethylene) 127-18-4 9 19950801 Aug 1,1995 II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
2943 Tetrachloroethylene (Perchloroethylene) 127-18-4 10 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
2944 Tetrachloroethylene (Perchloroethylene) 127-18-4 11 20120210 Feb 10,2012 I., II., VI. RfD updated. RfC and cancer assessment added.
2945 Tetrachloroethylene (Perchloroethylene) 127-18-4 12 20171025 Oct 25,2017 Updates Key Values Removed the basis, POD and UF and added (see note) for users to refer to the IRIS Summary. On the RfD, a table of 4 rows was consolidated to 1 row with the same (see note) update.
2946 Tetrachloroethylene (Perchloroethylene) 127-18-4 13 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
2947 2,3,4,6-Tetrachlorophenol 58-90-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2948 Tetrachlorovinphos 961-11-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2949 Tetraethyl lead 78-00-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2950 Tetraethyldithiopyrophosphate 3689-24-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2951 1,1,1,2-Tetrafluoroethane 811-97-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2952 Tetrahydrofuran 109-99-9 1 20111209 Dec 9,2011 I., II, and VI. RfD and RfC added, cancer assessment added.
2953 Tetrahydrofuran 109-99-9 2 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
2954 Tetrahydrofuran 109-99-9 3 20230925 Sep 25,2023 RFC Value The IRIS program requested a correction for the THF POD BMCL10 being represented incorrectly in the key values table on the chemical landing page. Request included removing the %E2%80%9C-12%E2%80%9D from the RFC value.
2955 Thallium (I), soluble salts Various 1 19870331 Mar 31,1987 I.A.6 Documentation corrected.
2956 Thallium (I), soluble salts Various 2 19880301 Mar 1,1988 I.A. RfD changed -- new study (thallium sulfate).
2957 Thallium (I), soluble salts Various 3 19880301 Mar 1,1988 I.A.6. Verification date changed (thallium sulfate).
2958 Thallium (I), soluble salts Various 4 19880630 Jun 30,1988 I.A. RfD withdrawn.
2959 Thallium (I), soluble salts Various 5 19880907 Sep 7,1988 I.A. Revised oral RfD summary added.
2960 Thallium (I), soluble salts Various 6 19890601 Jun 1,1989 I.A.6. Work group review dates revised (thallium acetate, carbonate, chloride, nitrate).
2961 Thallium (I), soluble salts Various 7 19900901 Sep 1,1990 I.A. Text edited.
2962 Thallium (I), soluble salts Various 8 19900901 Sep 1,1990 I.A.7. Secondary contact changed.
2963 Thallium (I), soluble salts Various 9 19900901 Sep 1,1990 II. Carcinogen assessment online.
2964 Thallium (I), soluble salts Various 10 19900901 Sep 1,1990 IV.F.1. EPA contact changed.
2965 Thallium (I), soluble salts Various 11 19900901 Sep 1,1990 VI. Bibliography online.
2966 Thallium (I), soluble salts Various 12 19910801 Aug 1,1991 VI.C. Kada et al. (1980) citation corrected.
2967 Thallium (I), soluble salts Various 13 19920101 Jan 1,1992 IV. Regulatory actions updated.
2968 Thallium (I), soluble salts Various 14 19920601 Jun 1,1992 V.B. Chemical formula corrected (thallium carbonate).
2969 Thallium (I), soluble salts Various 15 19970401 Apr 1,1997 III., IV., V. Drinking water health advisories, EPA regulated actions, and supplementary data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA program offices for this information.
2970 Thallium (I), soluble salts Various 16 20021203 Dec 3,2002 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium sulfate, carbonate, chloride, nitrate).
2971 Thallium (I), soluble salts Various 17 20031028 Oct 28,2003 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium acetate).
2972 Thallium (I), soluble salts Various 18 20090930 Sep 30,2009 I.A.6., II.D.2. Screening-level literature review findings message removed.
2973 Thallium (I), soluble salts Various 19 20090930 Sep 30,2009 All IRIS Summaries for five thallium soluble salts combined into a single Summary. RfD, RfC, and cancer sections updated. RfD removed.
2974 Thallium (I), soluble salts Various 20 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2975 Thallium acetate 563-68-8 1 19870331 Mar 31,1987 I.A.6 Documentation corrected.
2976 Thallium acetate 563-68-8 2 19880301 Mar 1,1988 I.A. RfD changed -- new study (thallium sulfate).
2977 Thallium acetate 563-68-8 3 19880301 Mar 1,1988 I.A.6. Verification date changed (thallium sulfate).
2978 Thallium acetate 563-68-8 4 19880630 Jun 30,1988 I.A. RfD withdrawn.
2979 Thallium acetate 563-68-8 5 19880907 Sep 7,1988 I.A. Revised oral RfD summary added.
2980 Thallium acetate 563-68-8 6 19890601 Jun 1,1989 I.A.6. Work group review dates revised (thallium acetate, carbonate, chloride, nitrate).
2981 Thallium acetate 563-68-8 7 19900901 Sep 1,1990 I.A. Text edited.
2982 Thallium acetate 563-68-8 8 19900901 Sep 1,1990 I.A.7. Secondary contact changed.
2983 Thallium acetate 563-68-8 9 19900901 Sep 1,1990 II. Carcinogen assessment online.
2984 Thallium acetate 563-68-8 10 19900901 Sep 1,1990 IV.F.1. EPA contact changed.
2985 Thallium acetate 563-68-8 11 19900901 Sep 1,1990 VI. Bibliography online.
2986 Thallium acetate 563-68-8 12 19910801 Aug 1,1991 VI.C. Kada et al. (1980) citation corrected.
2987 Thallium acetate 563-68-8 13 19920101 Jan 1,1992 IV. Regulatory actions updated.
2988 Thallium acetate 563-68-8 14 19920601 Jun 1,1992 V.B. Chemical formula corrected (thallium carbonate).
2989 Thallium acetate 563-68-8 15 19970401 Apr 1,1997 III., IV., V. Drinking water health advisories, EPA regulated actions, and supplementary data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA program offices for this information.
2990 Thallium acetate 563-68-8 16 20021203 Dec 3,2002 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium sulfate, carbonate, chloride, nitrate).
2991 Thallium acetate 563-68-8 17 20031028 Oct 28,2003 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium acetate).
2992 Thallium acetate 563-68-8 18 20090930 Sep 30,2009 I.A.6., II.D.2. Screening-level literature review findings message removed.
2993 Thallium acetate 563-68-8 19 20090930 Sep 30,2009 All IRIS Summaries for five thallium soluble salts combined into a single Summary. RfD, RfC, and cancer sections updated. RfD removed.
2994 Thallium acetate 563-68-8 20 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
2995 Thallium carbonate 6533-73-9 1 19870331 Mar 31,1987 I.A.6 Documentation corrected.
2996 Thallium carbonate 6533-73-9 2 19880301 Mar 1,1988 I.A. RfD changed -- new study (thallium sulfate).
2997 Thallium carbonate 6533-73-9 3 19880301 Mar 1,1988 I.A.6. Verification date changed (thallium sulfate).
2998 Thallium carbonate 6533-73-9 4 19880630 Jun 30,1988 I.A. RfD withdrawn.
2999 Thallium carbonate 6533-73-9 5 19880907 Sep 7,1988 I.A. Revised oral RfD summary added.
3000 Thallium carbonate 6533-73-9 6 19890601 Jun 1,1989 I.A.6. Work group review dates revised (thallium acetate, carbonate, chloride, nitrate).
3001 Thallium carbonate 6533-73-9 7 19900901 Sep 1,1990 I.A. Text edited.
3002 Thallium carbonate 6533-73-9 8 19900901 Sep 1,1990 I.A.7. Secondary contact changed.
3003 Thallium carbonate 6533-73-9 9 19900901 Sep 1,1990 II. Carcinogen assessment online.
3004 Thallium carbonate 6533-73-9 10 19900901 Sep 1,1990 IV.F.1. EPA contact changed.
3005 Thallium carbonate 6533-73-9 11 19900901 Sep 1,1990 VI. Bibliography online.
3006 Thallium carbonate 6533-73-9 12 19910801 Aug 1,1991 VI.C. Kada et al. (1980) citation corrected.
3007 Thallium carbonate 6533-73-9 13 19920101 Jan 1,1992 IV. Regulatory actions updated.
3008 Thallium carbonate 6533-73-9 14 19920601 Jun 1,1992 V.B. Chemical formula corrected (thallium carbonate).
3009 Thallium carbonate 6533-73-9 15 19970401 Apr 1,1997 III., IV., V. Drinking water health advisories, EPA regulated actions, and supplementary data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA program offices for this information.
3010 Thallium carbonate 6533-73-9 16 20021203 Dec 3,2002 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium sulfate, carbonate, chloride, nitrate).
3011 Thallium carbonate 6533-73-9 17 20031028 Oct 28,2003 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium acetate).
3012 Thallium carbonate 6533-73-9 18 20090930 Sep 30,2009 I.A.6., II.D.2. Screening-level literature review findings message removed.
3013 Thallium carbonate 6533-73-9 19 20090930 Sep 30,2009 All IRIS Summaries for five thallium soluble salts combined into a single Summary. RfD, RfC, and cancer sections updated. RfD removed.
3014 Thallium carbonate 6533-73-9 20 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3015 Thallium chloride 7791-12-0 1 19870331 Mar 31,1987 I.A.6 Documentation corrected.
3016 Thallium chloride 7791-12-0 2 19880301 Mar 1,1988 I.A. RfD changed -- new study (thallium sulfate).
3017 Thallium chloride 7791-12-0 3 19880301 Mar 1,1988 I.A.6. Verification date changed (thallium sulfate).
3018 Thallium chloride 7791-12-0 4 19880630 Jun 30,1988 I.A. RfD withdrawn.
3019 Thallium chloride 7791-12-0 5 19880907 Sep 7,1988 I.A. Revised oral RfD summary added.
3020 Thallium chloride 7791-12-0 6 19890601 Jun 1,1989 I.A.6. Work group review dates revised (thallium acetate, carbonate, chloride, nitrate).
3021 Thallium chloride 7791-12-0 7 19900901 Sep 1,1990 I.A. Text edited.
3022 Thallium chloride 7791-12-0 8 19900901 Sep 1,1990 I.A.7. Secondary contact changed.
3023 Thallium chloride 7791-12-0 9 19900901 Sep 1,1990 II. Carcinogen assessment online.
3024 Thallium chloride 7791-12-0 10 19900901 Sep 1,1990 IV.F.1. EPA contact changed.
3025 Thallium chloride 7791-12-0 11 19900901 Sep 1,1990 VI. Bibliography online.
3026 Thallium chloride 7791-12-0 12 19910801 Aug 1,1991 VI.C. Kada et al. (1980) citation corrected.
3027 Thallium chloride 7791-12-0 13 19920101 Jan 1,1992 IV. Regulatory actions updated.
3028 Thallium chloride 7791-12-0 14 19920601 Jun 1,1992 V.B. Chemical formula corrected (thallium carbonate).
3029 Thallium chloride 7791-12-0 15 19970401 Apr 1,1997 III., IV., V. Drinking water health advisories, EPA regulated actions, and supplementary data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA program offices for this information.
3030 Thallium chloride 7791-12-0 16 20021203 Dec 3,2002 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium sulfate, carbonate, chloride, nitrate).
3031 Thallium chloride 7791-12-0 17 20031028 Oct 28,2003 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium acetate).
3032 Thallium chloride 7791-12-0 18 20090930 Sep 30,2009 I.A.6., II.D.2. Screening-level literature review findings message removed.
3033 Thallium chloride 7791-12-0 19 20090930 Sep 30,2009 All IRIS Summaries for five thallium soluble salts combined into a single Summary. RfD, RfC, and cancer sections updated. RfD removed.
3034 Thallium chloride 7791-12-0 20 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3035 Thallium nitrate 10102-45-1 1 19870331 Mar 31,1987 I.A.6 Documentation corrected.
3036 Thallium nitrate 10102-45-1 2 19880301 Mar 1,1988 I.A. RfD changed -- new study (thallium sulfate).
3037 Thallium nitrate 10102-45-1 3 19880301 Mar 1,1988 I.A.6. Verification date changed (thallium sulfate).
3038 Thallium nitrate 10102-45-1 4 19880630 Jun 30,1988 I.A. RfD withdrawn.
3039 Thallium nitrate 10102-45-1 5 19880907 Sep 7,1988 I.A. Revised oral RfD summary added.
3040 Thallium nitrate 10102-45-1 6 19890601 Jun 1,1989 I.A.6. Work group review dates revised (thallium acetate, carbonate, chloride, nitrate).
3041 Thallium nitrate 10102-45-1 7 19900901 Sep 1,1990 I.A. Text edited.
3042 Thallium nitrate 10102-45-1 8 19900901 Sep 1,1990 I.A.7. Secondary contact changed.
3043 Thallium nitrate 10102-45-1 9 19900901 Sep 1,1990 II. Carcinogen assessment online.
3044 Thallium nitrate 10102-45-1 10 19900901 Sep 1,1990 IV.F.1. EPA contact changed.
3045 Thallium nitrate 10102-45-1 11 19900901 Sep 1,1990 VI. Bibliography online.
3046 Thallium nitrate 10102-45-1 12 19910801 Aug 1,1991 VI.C. Kada et al. (1980) citation corrected.
3047 Thallium nitrate 10102-45-1 13 19920101 Jan 1,1992 IV. Regulatory actions updated.
3048 Thallium nitrate 10102-45-1 14 19920601 Jun 1,1992 V.B. Chemical formula corrected (thallium carbonate).
3049 Thallium nitrate 10102-45-1 15 19970401 Apr 1,1997 III., IV., V. Drinking water health advisories, EPA regulated actions, and supplementary data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA program offices for this information.
3050 Thallium nitrate 10102-45-1 16 20021203 Dec 3,2002 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium sulfate, carbonate, chloride, nitrate).
3051 Thallium nitrate 10102-45-1 17 20031028 Oct 28,2003 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium acetate).
3052 Thallium nitrate 10102-45-1 18 20090930 Sep 30,2009 I.A.6., II.D.2. Screening-level literature review findings message removed.
3053 Thallium nitrate 10102-45-1 19 20090930 Sep 30,2009 All IRIS Summaries for five thallium soluble salts combined into a single Summary. RfD, RfC, and cancer sections updated. RfD removed.
3054 Thallium nitrate 10102-45-1 20 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3055 Thallium oxide 1314-32-5 1 19870331 Mar 31,1987 I.A.6. Documentation corrected.
3056 Thallium oxide 1314-32-5 2 19880630 Jun 30,1988 I.A. RfD withdrawn.
3057 Thallium oxide 1314-32-5 3 19880907 Sep 7,1988 I.A. Revised oral RfD summary added.
3058 Thallium oxide 1314-32-5 4 19890501 May 1,1989 I.A. Oral RfD withdrawn pending further review.
3059 Thallium oxide 1314-32-5 5 19900901 Sep 1,1990 II. Carcinogen assessment online.
3060 Thallium oxide 1314-32-5 6 19900901 Sep 1,1990 IV.F.1. EPA contact changed.
3061 Thallium oxide 1314-32-5 7 19900901 Sep 1,1990 VI. Bibliography online.
3062 Thallium oxide 1314-32-5 8 19910801 Aug 1,1991 VI.C. Kada et al. (1980) citation corrected.
3063 Thallium oxide 1314-32-5 9 19920101 Jan 1,1992 IV. Regulatory actions updated.
3064 Thallium oxide 1314-32-5 10 19930801 Aug 1,1993 I.A. Work group review date added.
3065 Thallium oxide 1314-32-5 11 19930801 Aug 1,1993 I.A. EPA contact changed.
3066 Thallium oxide 1314-32-5 12 19950801 Aug 1,1995 I.A., I.A.6. EPA's RfD/RfC and CRAVE work groups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS pilot program replaced the work group functions beginning in September 1995.
3067 Thallium oxide 1314-32-5 13 19960701 Jul 1,1996 I.A. WG review date corrected contact changed.
3068 Thallium oxide 1314-32-5 14 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulated Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
3069 Thallium oxide 1314-32-5 15 20021203 Dec 3,2002 I.A., II.D.2. Screening-Level Literature Review Findings message has been added.
3070 Thallium oxide 1314-32-5 16 20090930 Sep 30,2009 All RfD, RfC, and cancer sections updated.
3071 Thallium oxide 1314-32-5 17 20090930 Sep 30,2009 All Name of file changed from thallic oxide to thallium oxide.
3072 Thallium oxide 1314-32-5 18 20090930 Sep 30,2009 I.A., II.D.2. Screening-Level Literature Review Findings message removed.
3073 Thallium oxide 1314-32-5 19 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3074 Thallium selenite 12039-52-0 1 19870331 Mar 31,1987 I.A.6. Documentation corrected.
3075 Thallium selenite 12039-52-0 2 19880630 Jun 30,1988 I.A. RfD withdrawn.
3076 Thallium selenite 12039-52-0 3 19880907 Sep 7,1988 I.A. Revised oral RfD summary added.
3077 Thallium selenite 12039-52-0 4 19890501 May 1,1989 I.A. Oral RfD noted as pending change.
3078 Thallium selenite 12039-52-0 5 19890601 Jun 1,1989 I.A.6. Work group review dates revised.
3079 Thallium selenite 12039-52-0 6 19890601 Jun 1,1989 I.A.7. Secondary contact changed.
3080 Thallium selenite 12039-52-0 7 19900901 Sep 1,1990 I.A. Text edited.
3081 Thallium selenite 12039-52-0 8 19900901 Sep 1,1990 II. Carcinogen assessment online.
3082 Thallium selenite 12039-52-0 9 19900901 Sep 1,1990 IV.F.1. EPA contact changed.
3083 Thallium selenite 12039-52-0 10 19900901 Sep 1,1990 VI. Bibliography online.
3084 Thallium selenite 12039-52-0 11 19910801 Aug 1,1991 VI.C. Kada et al. (1980) citation corrected.
3085 Thallium selenite 12039-52-0 12 19920101 Jan 1,1992 IV. Regulatory actions updated.
3086 Thallium selenite 12039-52-0 13 19930801 Aug 1,1993 I.A. Withdrawn inadequate data.
3087 Thallium selenite 12039-52-0 14 19930801 Aug 1,1993 I.A. Work group review date added.
3088 Thallium selenite 12039-52-0 15 19930801 Aug 1,1993 I.A. EPA contact changed.
3089 Thallium selenite 12039-52-0 16 19930801 Aug 1,1993 VI.A. Oral RfD references withdrawn.
3090 Thallium selenite 12039-52-0 17 19950801 Aug 1,1995 I.A., I.A.6. EPA's RfD/RfC and CRAVE work groups were discontinued in May 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS pilot program replaced the work group functions beginning in September 1995.
3091 Thallium selenite 12039-52-0 18 19960701 Jul 1,1996 I.A. Contact changed.
3092 Thallium selenite 12039-52-0 19 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulated Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
3093 Thallium selenite 12039-52-0 20 20031028 Oct 28,2003 I.A., II.D.2. Screening-Level Literature Review Findings message has been added.
3094 Thallium selenite 12039-52-0 21 20090930 Sep 30,2009 All RfD, RfC, and cancer sections updated.
3095 Thallium selenite 12039-52-0 22 20090930 Sep 30,2009 I.A., II.D.2. Screening-Level Literature Review Findings message removed.
3096 Thallium selenite 12039-52-0 23 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3097 Thallium(I) sulfate 7446-18-6 1 19870331 Mar 31,1987 I.A.6 Documentation corrected.
3098 Thallium(I) sulfate 7446-18-6 2 19880301 Mar 1,1988 I.A. RfD changed -- new study (thallium sulfate).
3099 Thallium(I) sulfate 7446-18-6 3 19880301 Mar 1,1988 I.A.6. Verification date changed (thallium sulfate).
3100 Thallium(I) sulfate 7446-18-6 4 19880630 Jun 30,1988 I.A. RfD withdrawn.
3101 Thallium(I) sulfate 7446-18-6 5 19880907 Sep 7,1988 I.A. Revised oral RfD summary added.
3102 Thallium(I) sulfate 7446-18-6 6 19890601 Jun 1,1989 I.A.6. Work group review dates revised (thallium acetate, carbonate, chloride, nitrate).
3103 Thallium(I) sulfate 7446-18-6 7 19900901 Sep 1,1990 I.A. Text edited.
3104 Thallium(I) sulfate 7446-18-6 8 19900901 Sep 1,1990 I.A.7. Secondary contact changed.
3105 Thallium(I) sulfate 7446-18-6 9 19900901 Sep 1,1990 II. Carcinogen assessment online.
3106 Thallium(I) sulfate 7446-18-6 10 19900901 Sep 1,1990 IV.F.1. EPA contact changed.
3107 Thallium(I) sulfate 7446-18-6 11 19900901 Sep 1,1990 VI. Bibliography online.
3108 Thallium(I) sulfate 7446-18-6 12 19910801 Aug 1,1991 VI.C. Kada et al. (1980) citation corrected.
3109 Thallium(I) sulfate 7446-18-6 13 19920101 Jan 1,1992 IV. Regulatory actions updated.
3110 Thallium(I) sulfate 7446-18-6 14 19920601 Jun 1,1992 V.B. Chemical formula corrected (thallium carbonate).
3111 Thallium(I) sulfate 7446-18-6 15 19970401 Apr 1,1997 III., IV., V. Drinking water health advisories, EPA regulated actions, and supplementary data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA program offices for this information.
3112 Thallium(I) sulfate 7446-18-6 16 20021203 Dec 3,2002 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium sulfate, carbonate, chloride, nitrate).
3113 Thallium(I) sulfate 7446-18-6 17 20031028 Oct 28,2003 I.A.6., II.D.2. Screening-level literature review findings message has been added (thallium acetate).
3114 Thallium(I) sulfate 7446-18-6 18 20090930 Sep 30,2009 I.A.6., II.D.2. Screening-level literature review findings message removed.
3115 Thallium(I) sulfate 7446-18-6 19 20090930 Sep 30,2009 All IRIS Summaries for five thallium soluble salts combined into a single Summary. RfD, RfC, and cancer sections updated. RfD removed.
3116 Thallium(I) sulfate 7446-18-6 20 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3117 Thiobencarb 28249-77-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3118 Thiophanate-methyl 23564-05-8 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
3119 Thiophanate-methyl 23564-05-8 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3120 Thiram 137-26-8 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
3121 Thiram 137-26-8 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3122 Toluene 108-88-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3123 2,4-/2,6-Toluene diisocyanate mixture (TDI) 26471-62-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3124 Toxaphene 8001-35-2 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
3125 Toxaphene 8001-35-2 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3126 Tralomethrin 66841-25-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3127 Triallate 2303-17-5 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
3128 Triallate 2303-17-5 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3129 Triasulfuron 82097-50-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3130 1,2,4-Tribromobenzene 615-54-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3131 Tribromochloromethane 594-15-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3132 Tribromodiphenyl ether 49690-94-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3133 Tributyltin oxide (TBTO) 56-35-9 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3134 1,1,2-Trichloro-1,2,2-trifluoroethane (CFC-113) 76-13-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3135 Trichloroacetic acid 76-03-9 1 20110930 Sep 30,2011 I., II. RfD and cancer assessment sections updated. RfC discussion added.%0A
3136 Trichloroacetic acid 76-03-9 2 19921001 Oct 1,1992 I.A. Oral RfD now under review
3137 Trichloroacetic acid 76-03-9 3 19930301 Mar 1,1993 II. Carcinogenicity assessment now under review
3138 Trichloroacetic acid 76-03-9 4 19930501 May 1,1993 I.A., II. Work group review date added
3139 Trichloroacetic acid 76-03-9 5 19930701 Jul 1,1993 I.A. Work group review date added
3140 Trichloroacetic acid 76-03-9 6 19930901 Sep 1,1993 II. Work group review date added
3141 Trichloroacetic acid 76-03-9 7 19940101 Jan 1,1994 I.A. Work group review date added
3142 Trichloroacetic acid 76-03-9 8 19950801 Aug 1,1995 I.A., II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
3143 Trichloroacetic acid 76-03-9 9 19960201 Feb 1,1996 II. Carcinogenicity assessment on-line
3144 Trichloroacetic acid 76-03-9 10 19960201 Feb 1,1996 VI.C. Carcinogenicity assessment references on-line
3145 Trichloroacetic acid 76-03-9 11 19960301 Mar 1,1996 II.A.3. Citation revised
3146 Trichloroacetic acid 76-03-9 12 19960301 Mar 1,1996 II.D.3. Primary contact changed
3147 Trichloroacetic acid 76-03-9 13 19960301 Mar 1,1996 VI.C. U.S. EPA, 1993 revised to DeAngelo, 1993
3148 Trichloroacetic acid 76-03-9 14 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
3149 Trichloroacetic acid 76-03-9 15 20021203 Dec 3,2002 II.D.2. Screening-Level Literature Review Findings message has been added.
3150 Trichloroacetic acid 76-03-9 16 20030730 Jul 30,2003 I., II. This chemical is being reassessed under the IRIS Program.
3151 Trichloroacetic acid 76-03-9 17 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3152 1,2,4-Trichlorobenzene 120-82-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3153 Trichlorocyclopentadiene 77323-84-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3154 1,1,1-Trichloroethane 71-55-6 1 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
3155 1,1,2-Trichloroethane 79-00-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3156 Trichloroethylene 79-01-6 1 19880301 Mar 1,1988 II.B.3. Text revised
3157 Trichloroethylene 79-01-6 2 19880301 Mar 1,1988 II.B.4. Confidence statement revised
3158 Trichloroethylene 79-01-6 3 19880301 Mar 1,1988 II.C.2. Text added
3159 Trichloroethylene 79-01-6 4 19880301 Mar 1,1988 II.C.4. Confidence statement revised
3160 Trichloroethylene 79-01-6 5 19880301 Mar 1,1988 II.D.4. Documentation corrected
3161 Trichloroethylene 79-01-6 6 19890501 May 1,1989 II. Carcinogen assessment summary noted as pending change
3162 Trichloroethylene 79-01-6 7 19890601 Jun 1,1989 II.D.3. Primary contact changed
3163 Trichloroethylene 79-01-6 8 19890701 Jul 1,1989 II. Withdrawn new assessment verified (in preparation)
3164 Trichloroethylene 79-01-6 9 19891201 Dec 1,1989 I.B. Inhalation RfD now under review
3165 Trichloroethylene 79-01-6 10 19900601 Jun 1,1990 IV.A.1. Area code for EPA contact corrected
3166 Trichloroethylene 79-01-6 11 19900601 Jun 1,1990 IV.F.1. EPA contact changed
3167 Trichloroethylene 79-01-6 12 19920101 Jan 1,1992 IV. Regulatory actions updated
3168 Trichloroethylene 79-01-6 13 19920401 Apr 1,1992 IV.A.1. CAA regulatory action withdrawn
3169 Trichloroethylene 79-01-6 14 19920701 Jul 1,1992 II. EPA contact changed work group review dates added
3170 Trichloroethylene 79-01-6 15 19920801 Aug 1,1992 I.A. Oral RfD now under review
3171 Trichloroethylene 79-01-6 16 19931101 Nov 1,1993 II. Work group review date added
3172 Trichloroethylene 79-01-6 17 19940701 Jul 1,1994 II. Work group review date added
3173 Trichloroethylene 79-01-6 18 19950801 Aug 1,1995 I.A., I.B., II. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
3174 Trichloroethylene 79-01-6 19 19970401 Apr 1,1997 III., IV., V. Drinking Water Health Advisories, EPA Regulatory Actions, and Supplementary Data were removed from IRIS on or before April 1997. IRIS users were directed to the appropriate EPA Program Offices for this information.
3175 Trichloroethylene 79-01-6 20 19980102 Jan 2,1998 I., II. This chemical is being reassessed under the IRIS Program.
3176 Trichloroethylene 79-01-6 21 20030605 Jun 5,2003 Status of Data Correction of administrative error concerning the date the carcinogenicity assessment (II.) was withdrawn from IRIS.
3177 Trichloroethylene 79-01-6 22 20040607 Jun 7,2004 VIII Text revised.
3178 Trichloroethylene 79-01-6 23 20110928 Sep 28,2011 I., II., VI. RfD, RfC, and Cancer assessment added.
3179 Trichloroethylene 79-01-6 24 20180710 Jul 10,2018 Key Values Table A footnote was added for ADAF.
3180 Trichloroethylene 79-01-6 25 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
3181 Trichlorofluoromethane 75-69-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3182 2,4,6-Trichlorophenol 88-06-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3183 2,4,5-Trichlorophenol 95-95-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3184 2(2,4,5-Trichlorophenoxy) propionic acid (2,4,5-TP) 93-72-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3185 2,4,5-Trichlorophenoxyacetic acid (2,4,5-T) 93-76-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3186 1,1,2-Trichloropropane 598-77-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3187 1,2,3-Trichloropropane 96-18-4 1 20090930 Sep 30,2009 I.A., I.B., II. Revised RfD, added RfC and carcinogenicity assessments.
3188 1,2,3-Trichloropropane 96-18-4 2 20180710 Jul 10,2018 Key Values Table A footnote was added for ADAF.
3189 1,2,3-Trichloropropane 96-18-4 3 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
3190 Tricresol 1319-77-3 1 20181024 Oct 24,2018 Archived Archived nulls at the request of the NCEA Center Director (T. Bahadori).
3191 Tricresol 1319-77-3 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3192 Tridiphane 58138-08-2 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
3193 Tridiphane 58138-08-2 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3194 Triethylamine 121-44-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3195 Triethylene glycol monobutyl ether 143-22-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3196 Triethylene glycol monoethyl ether 112-50-5 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3197 Trifluralin 1582-09-8 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3198 1,3,5-Trimethylbenzene 108-67-8 1 20160909 Sep 9,2016 All RfD, RfC and carcinogenic assessment added.
3199 1,3,5-Trimethylbenzene 108-67-8 2 20180802 Aug 2,2018 Updates to Key Value Added chronic/subchronic values into the key table to correspond with the Toxicological Review (TR). Made additional corrections to the system specific values based on input from the CM from the TR.
3200 1,3,5-Trimethylbenzene 108-67-8 3 20180813 Aug 13,2018 IRIS Summary Renamed label to Executive Summary to match the linked document.
3201 1,3,5-Trimethylbenzene 108-67-8 4 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
3202 1,2,3-Trimethylbenzene 526-73-8 1 20160909 Sep 9,2016 All RfD, RfC, and cancer assessment added.
3203 1,2,3-Trimethylbenzene 526-73-8 2 20180802 Aug 2,2018 Updates to Key Value Added chronic/subchronic values into the key table to correspond with the Toxicological Review (TR). Made additional corrections to the system specific values based on input from the CM from the TR.
3204 1,2,3-Trimethylbenzene 526-73-8 3 20180813 Aug 13,2018 IRIS Summary Renamed label to Executive Summary to match the linked document.
3205 1,2,3-Trimethylbenzene 526-73-8 4 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
3206 1,2,4-Trimethylbenzene 95-63-6 1 20160909 Sep 9,2016 All RfD, RfC and cancer assessment added.
3207 1,2,4-Trimethylbenzene 95-63-6 4 20180802 Aug 2,2018 Updates to Key Value Added chronic/subchronic values into the key table to correspond with the Toxicological Review (TR). Made additional corrections to the system specific values based on input from the CM from the TR.
3208 1,2,4-Trimethylbenzene 95-63-6 5 20180813 Aug 13,2018 IRIS Summary Renamed label to Executive Summary to match the linked document.
3209 1,2,4-Trimethylbenzene 95-63-6 6 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
3210 2,2,4-Trimethylpentane 540-84-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3211 1,3,5-Trinitrobenzene 99-35-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3212 2,4,6-Trinitrotoluene (TNT) 118-96-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3213 Uranium, natural 7440-61-1 1 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
3214 Uranium, natural 7440-61-1 2 20181220 Dec 20,2018 All EPA suspended the development of this assessment.
3215 Uranium, natural 7440-61-1 3 20210628 Jun 28,2021 All EPA removed the suspension and re-started this assessment.
3216 Uranium, soluble salts Various 1 19891001 Oct 1,1989 I.A. Oral RfD summary on-line
3217 Uranium, soluble salts Various 2 19891001 Oct 1,1989 VI. Bibliography on-line
3218 Uranium, soluble salts Various 3 19920101 Jan 1,1992 IV. Regulatory Action section on-line
3219 Uranium, soluble salts Various 5 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3220 Urea 57-13-6 1 20110713 Jul 13,2011 I., II., VI. RfD and RfC discussion added cancer assessment added.
3221 Urea 57-13-6 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3222 Vanadium and Compounds (Inhalation) Various 1 20210528 May 28,2021 Step 1 EPA released the draft document, IRIS Assessment Plan (IAP) for Inhalation Exposure to Vanadium and Compounds, for a 30-day public review and comment period.
3223 Vanadium and Compounds (Oral) Various 1 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link and DTX SID number
3224 Vanadium pentoxide 1314-62-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3225 Vernam 1929-77-7 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
3226 Vernam 1929-77-7 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3227 Vinclozolin 50471-44-8 1 20160715 Jul 15,2016 Archived Chemical IRIS working with OPP agreed to mark this pesticide chemical archived.
3228 Vinclozolin 50471-44-8 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3229 Vinyl acetate 108-05-4 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3230 Vinyl bromide 593-60-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3231 Vinyl chloride 75-01-4 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3232 Warfarin 81-81-2 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3233 White phosphorus 7723-14-0 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3234 Xylenes 1330-20-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3235 Zinc and Compounds 7440-66-6 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3236 Zinc cyanide 557-21-1 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3237 Zinc phosphide 1314-84-7 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3238 Zineb 12122-67-7 1 20190515 May 15,2019 Pesticide Marked this chemical as a pesticide. %5BSR%5D
3239 Zineb 12122-67-7 2 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3240 n-Butanol 71-36-3 1 20200715 Jul 15,2020 Related Topics Added Chemicals Dashboard link
3241 tert-Butyl Alcohol (tBA) 75-65-0 1 20160719 Jul 19,2016 Draft Document EPA released the draft document (step 1) for public review and comment. This is a new assessment so a new chemical landing page (draft) was also launched.
3242 tert-Butyl Alcohol (tBA) 75-65-0 2 20200714 Jul 14,2020 Related Topics Added Chemicals Dashboard link
3243 tert-Butyl Alcohol (tBA) 75-65-0 3 20210813 Aug 13,2021 All EPA completed a reassessment, updating all values.
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