Change Log

Changes to chemical data since 2020.
ID Date Chemical Change
5 02/19/2020 Cadmium (water) Chemical changes to Cadmium (water) made by dan.cook@dnr.iowa.gov on 2/19/2020 11:09:47 AM. ||Property cancer_group was: B; is: D
6 02/19/2020 Chloroform Chemical changes to Chloroform made by dan.cook@dnr.iowa.gov on 2/19/2020 11:10:31 AM. ||Property cancer_group was: B; is: D
7 02/20/2020 Butyl Benzyl Phthalate Chemical changes to Butyl Benzyl Phthalate made by dan.cook@dnr.iowa.gov on 2/20/2020 7:14:25 AM. ||Property name was: Butyl Benzyl Phthlate; is: Butyl Benzyl Phthalate
8 11/09/2020 Dioxin (2,3,7,8-tetrachlorodibenzo-p) Chemical changes to Dioxin (2,3,7,8-tetrachlorodibenzo-p) made by dan.cook@dnr.iowa.gov on 11/9/2020 4:05:57 PM. ||Property dw_max_level was: 3E-05; is: 3E-08
9 05/17/2021 Perfluorobutane Sulfonic Acid (PFBS) Chemical changes to Perfluorobutane Sulfonic Acid (PFBS) made by shelly.nellesen@dnr.iowa.gov on 5/17/2021 10:20:42 AM. ||Property name was: Perfluorobutane Sulfonate (PFBS); is: Perfluorobutane Sulfonic Acid (PFBS)||Property oral_ref_dos was: 0.02; is: 0.0003
10 05/17/2021 Perfluorobutane Sulfonic Acid (PFBS) Chemical changes to Perfluorobutane Sulfonic Acid (PFBS) made by shelly.nellesen@dnr.iowa.gov on 5/17/2021 12:18:04 PM. ||Property dermal_ref_dos was: 0.02; is: 0.0003
11 05/17/2021 Perfluorobutane Sulfonic Acid (PFBS) Organ Endoc added to chemical Perfluorobutane Sulfonic Acid (PFBS) for sense Oral on 5/17/2021 1:08:48 PM
12 05/19/2021 Perfluorobutane Sulfonate Organ Endoc added to chemical Perfluorobutane Sulfonate for sense Oral on 5/19/2021 11:06:28 AM
13 11/10/2021 Propylene Glycol Organ Respi added to chemical Propylene Glycol for sense Air on 11/10/2021 1:41:32 PM
14 11/10/2021 Propylene Glycol Organ Blood added to chemical Propylene Glycol for sense Oral on 11/10/2021 1:41:32 PM
15 11/10/2021 Propylene Glycol Organ Kidney added to chemical Propylene Glycol for sense Oral on 11/10/2021 1:41:32 PM
16 11/10/2021 Acenaphthene Organ Other added to chemical Acenaphthene for sense Air on 11/10/2021 2:02:45 PM
17 11/10/2021 Acenaphthene Organ Other added to chemical Acenaphthene for sense Oral on 11/10/2021 2:02:45 PM
18 04/04/2022 Chloroform Chemical changes to Chloroform made by dan.cook@dnr.iowa.gov on 4/4/2022 12:59:12 PM. ||Property cancer_group was: D; is: B||Property oral_slope_fac was: null; is: 0.01||Property dermal_slope_fac was: null; is: 0.01||Property inhal_ref_conc was: 0.1; is: null
19 04/04/2022 Chloroform Organ Kidney added to chemical Chloroform for sense Air on 4/4/2022 12:59:13 PM
20 04/04/2022 Chloroform Organ Blood removed from chemical Chloroform for sense Oral on 4/4/2022 12:59:13 PM
21 04/04/2022 Chloroform Organ Blood removed from chemical Chloroform for sense Oral on 4/4/2022 12:59:13 PM
22 04/04/2022 Chloroform Organ Nerve removed from chemical Chloroform for sense Oral on 4/4/2022 12:59:13 PM
23 04/04/2022 Chloroform Organ Nerve removed from chemical Chloroform for sense Oral on 4/4/2022 12:59:13 PM
24 05/11/2022 Chloroform Chemical changes to Chloroform made by dan.cook@dnr.iowa.gov on 5/11/2022 10:45:36 AM. ||Property oral_slope_fac was: 0.01; is: 0.031||Property dermal_slope_fac was: 0.01; is: 0.031||Property inhal_ref_conc was: null; is: 0.098
25 05/11/2022 Dichlorodiphenyldichloroethane, p,p- (DDD) Chemical changes to Dichlorodiphenyldichloroethane, p,p- (DDD) made by shelly.nellesen@dnr.iowa.gov on 5/11/2022 11:13:29 AM. ||Property oral_ref_dos was: 0.002; is: 3E-05||Property dermal_ref_dos was: 0.002; is: 3E-05
26 05/11/2022 Dichlorodiphenyldichloroethane, p,p- (DDD) Organ Liver added to chemical Dichlorodiphenyldichloroethane, p,p- (DDD) for sense Oral on 5/11/2022 11:13:29 AM
27 05/11/2022 Dichlorodiphenyldichloroethylene, p,p- (DDE) Chemical changes to Dichlorodiphenyldichloroethylene, p,p- (DDE) made by shelly.nellesen@dnr.iowa.gov on 5/11/2022 11:15:24 AM. ||Property oral_ref_dos was: null; is: 0.0003
28 05/11/2022 Dichlorodiphenyldichloroethylene, p,p- (DDE) Chemical changes to Dichlorodiphenyldichloroethylene, p,p- (DDE) made by shelly.nellesen@dnr.iowa.gov on 5/11/2022 11:15:34 AM. ||Property dermal_ref_dos was: null; is: 0.0003
29 05/11/2022 Dichlorodiphenyldichloroethylene, p,p- (DDE) Organ Liver added to chemical Dichlorodiphenyldichloroethylene, p,p- (DDE) for sense Oral on 5/11/2022 11:16:37 AM
30 07/14/2022 Perfluorononanoic acid (PFNA) Chemical changes to Perfluorononanoic acid (PFNA) made by shelly.nellesen@dnr.iowa.gov on 7/14/2022 9:32:15 AM. ||Property dermal_ref_dos was: null; is: 3E-06||Property dermal_absorp_fac was: null; is: 0.1
31 07/14/2022 Perfluorononanoic acid (PFNA) Organ Endoc added to chemical Perfluorononanoic acid (PFNA) for sense Oral on 7/14/2022 9:34:14 AM
32 07/14/2022 Perfluorononanoic acid (PFNA) Organ GenUr added to chemical Perfluorononanoic acid (PFNA) for sense Oral on 7/14/2022 9:34:14 AM
33 07/14/2022 Hexafluoropropylene oxide - dimer acid (GenX, HFPO-DA) Organ Liver added to chemical Hexafluoropropylene oxide - dimer acid (GenX) for sense Oral on 7/14/2022 9:50:22 AM
34 07/14/2022 Hexafluoropropylene oxide - dimer acid (GenX, HFPO-DA) Organ Kidney added to chemical Hexafluoropropylene oxide - dimer acid (GenX) for sense Oral on 7/14/2022 9:50:22 AM
35 07/14/2022 Hexafluoropropylene oxide - dimer acid (GenX, HFPO-DA) Organ Immu added to chemical Hexafluoropropylene oxide - dimer acid (GenX) for sense Oral on 7/14/2022 9:50:22 AM
36 07/14/2022 Hexafluoropropylene oxide - dimer acid (GenX, HFPO-DA) Organ Devel added to chemical Hexafluoropropylene oxide - dimer acid (GenX) for sense Oral on 7/14/2022 9:50:22 AM
37 07/14/2022 Perfluorohexanesulfonate (PFHxS) Organ Heart added to chemical Perfluorohexanesulfonate (PFHxS) for sense Oral on 7/14/2022 10:06:49 AM
38 07/14/2022 Perfluorohexanesulfonate (PFHxS) Organ Blood added to chemical Perfluorohexanesulfonate (PFHxS) for sense Oral on 7/14/2022 10:06:49 AM
39 07/14/2022 Perfluorohexanesulfonate (PFHxS) Organ Endoc added to chemical Perfluorohexanesulfonate (PFHxS) for sense Oral on 7/14/2022 10:06:49 AM
40 07/14/2022 Perfluorohexanesulfonate (PFHxS) Organ Immu added to chemical Perfluorohexanesulfonate (PFHxS) for sense Oral on 7/14/2022 10:06:49 AM
41 07/14/2022 Perfluorohexanesulfonate (PFHxS) Organ Nerve added to chemical Perfluorohexanesulfonate (PFHxS) for sense Oral on 7/14/2022 10:06:50 AM
42 07/14/2022 Perfluorohexanesulfonate (PFHxS) Organ GenUr added to chemical Perfluorohexanesulfonate (PFHxS) for sense Oral on 7/14/2022 10:06:50 AM
43 07/14/2022 Perfluorohexanesulfonate (PFHxS) Organ Devel added to chemical Perfluorohexanesulfonate (PFHxS) for sense Oral on 7/14/2022 10:06:50 AM
44 07/14/2022 Perfluorohexanesulfonate (PFHxS) Organ Gastro added to chemical Perfluorohexanesulfonate (PFHxS) for sense Oral on 7/14/2022 10:06:50 AM
45 07/14/2022 Perfluorooctanoic Acid (PFOA) Chemical changes to Perfluorooctanoic Acid (PFOA) made by shelly.nellesen@dnr.iowa.gov on 7/14/2022 10:10:08 AM. ||Property dw_health_level was: 7E-05; is: 4E-09||Property oral_ref_dos was: 2E-05; is: 1.5E-09||Property dermal_ref_dos was: 2E-05; is: 1.5E-09
46 07/14/2022 Perfluorooctanoic Acid (PFOA) Organ Heart added to chemical Perfluorooctanoic Acid (PFOA) for sense Oral on 7/14/2022 10:10:08 AM
47 07/14/2022 Perfluorooctanoic Acid (PFOA) Organ Immu added to chemical Perfluorooctanoic Acid (PFOA) for sense Oral on 7/14/2022 10:10:08 AM
48 07/14/2022 Perfluorooctanoic Acid (PFOA) Organ Devel added to chemical Perfluorooctanoic Acid (PFOA) for sense Oral on 7/14/2022 10:10:08 AM
49 07/14/2022 Perfluorooctanesulfonic Acid (PFOS) Chemical changes to Perfluorooctanesulfonic Acid (PFOS) made by shelly.nellesen@dnr.iowa.gov on 7/14/2022 10:19:01 AM. ||Property dw_health_level was: 7E-05; is: 2E-08||Property oral_ref_dos was: 3E-05; is: 7.9E-09||Property dermal_ref_dos was: 3E-05; is: 7.9E-09
50 07/14/2022 Perfluorobutane Sulfonic Acid (PFBS) Chemical changes to Perfluorobutane Sulfonic Acid (PFBS) made by shelly.nellesen@dnr.iowa.gov on 7/14/2022 10:24:01 AM. ||Property dw_health_level was: null; is: 0.002
51 07/14/2022 Perfluorobutane Sulfonate Chemical changes to Perfluorobutane Sulfonate made by shelly.nellesen@dnr.iowa.gov on 7/14/2022 10:24:30 AM. ||Property dw_health_level was: null; is: 0.002
52 02/21/2023 Perfluorobutanoic Acid (PFBA) Organ Blood added to chemical Perfluorobutanoic Acid (PFBA) for sense Oral on 2/21/2023 10:17:48 AM
53 02/21/2023 Perfluorobutanoic Acid (PFBA) Organ Endoc added to chemical Perfluorobutanoic Acid (PFBA) for sense Oral on 2/21/2023 10:17:48 AM
54 02/21/2023 Perfluorobutanoic Acid (PFBA) Organ Devel added to chemical Perfluorobutanoic Acid (PFBA) for sense Oral on 2/21/2023 10:17:48 AM
55 02/21/2023 Perfluorobutanoic Acid (PFBA) Chemical changes to Perfluorobutanoic Acid (PFBA) made by shelly.nellesen@dnr.iowa.gov on 2/21/2023 10:22:27 AM. ||Property casrn was: 375-22-4; is: 000375-22-4||Property dermal_ref_dos was: null; is: 0.001||Property dermal_absorp_fac was: null; is: 0.1
56 03/23/2023 Copper Chemical changes to Copper made by shelly.nellesen@dnr.iowa.gov on 3/23/2023 9:00:11 AM. ||Property oral_ref_dos was: 0.19; is: 0.04||Property dermal_ref_dos was: 0.19; is: 0.04
57 05/25/2023 Perfluourohexanoic Acid (PFHxA) Chemical changes to Perfluourohexanoic Acid (PFHxA) made by shelly.nellesen@dnr.iowa.gov on 5/25/2023 9:47:34 AM. ||Property dermal_ref_dos was: null; is: 0.0005
58 05/25/2023 Perfluourohexanoic Acid (PFHxA) Organ Blood added to chemical Perfluourohexanoic Acid (PFHxA) for sense Oral on 5/25/2023 9:47:35 AM
59 05/25/2023 Perfluourohexanoic Acid (PFHxA) Organ Endoc added to chemical Perfluourohexanoic Acid (PFHxA) for sense Oral on 5/25/2023 9:47:35 AM
60 05/25/2023 Perfluourohexanoic Acid (PFHxA) Organ Devel added to chemical Perfluourohexanoic Acid (PFHxA) for sense Oral on 5/25/2023 9:47:35 AM
61 05/25/2023 4-chloro-m-cresol Chemical changes to 4-chloro-m-cresol made by shelly.nellesen@dnr.iowa.gov on 5/25/2023 10:57:06 AM. ||Property name was: Chloro-3-methylphenol-4 (e); is: 4-chloro-m-cresol
62 12/04/2023 Trichloro-1,2,2-trifluoroethane, 1,1,2- (Freon 113) Chemical changes to Trichloro-1,2,2-trifluoroethane, 1,1,2-, Freon 113 made by laura.juliano@dnr.iowa.gov on 12/4/2023 1:07:10 PM. ||Property name was: Trichloro-1,2,2-trifluoroethane, 1,1,2-; is: Trichloro-1,2,2-trifluoroethane, 1,1,2-, Freon 113
63 01/25/2024 Dichloroethylene, 1,2-cis- Chemical changes to Dichloroethylene, 1,2-cis- made by shelly.nellesen@dnr.iowa.gov on 1/25/2024 8:59:36 AM. ||Property inhal_ref_conc was: null; is: 0.04
64 01/25/2024 Dichloroethylene, 1,2-cis- Organ Endoc added to chemical Dichloroethylene, 1,2-cis- for sense Air on 1/25/2024 8:59:36 AM
65 04/15/2024 Perfluorononanoic acid (PFNA) Chemical changes to Perfluorononanoic acid (PFNA) made by matthew.graesch@dnr.iowa.gov on 4/15/2024 9:37:28 AM. ||Property dw_max_level was: null; is: 1E-05
66 04/15/2024 Perfluorooctanesulfonic Acid (PFOS) Chemical changes to Perfluorooctanesulfonic Acid (PFOS) made by matthew.graesch@dnr.iowa.gov on 4/15/2024 9:58:34 AM. ||Property dw_max_level was: null; is: 4E-06
67 04/15/2024 Perfluorooctanoic Acid (PFOA) Chemical changes to Perfluorooctanoic Acid (PFOA) made by matthew.graesch@dnr.iowa.gov on 4/15/2024 10:12:16 AM. ||Property dw_max_level was: null; is: 4E-05
68 04/15/2024 Hexafluoropropylene oxide - dimer acid (GenX, HFPO-DA) Chemical changes to Hexafluoropropylene oxide - dimer acid (GenX, HFPO-DA) made by matthew.graesch@dnr.iowa.gov on 4/15/2024 10:20:24 AM. ||Property dw_max_level was: null; is: 1E-05
69 04/15/2024 Perfluorohexanesulfonate (PFHxS) Chemical changes to Perfluorohexanesulfonate (PFHxS) made by matthew.graesch@dnr.iowa.gov on 4/15/2024 10:21:59 AM. ||Property dw_max_level was: null; is: 1E-05
70 04/15/2024 Perfluorobutane Sulfonic Acid (PFBS) Chemical changes to Perfluorobutane Sulfonic Acid (PFBS) made by matthew.graesch@dnr.iowa.gov on 4/15/2024 10:36:59 AM. ||Property dw_max_level was: null; is: 0.002
71 04/17/2024 Perfluorononanoic acid (PFNA) Chemical changes to Perfluorononanoic acid (PFNA) made by matthew.graesch@dnr.iowa.gov on 4/17/2024 8:46:44 AM. ||Property dw_max_level was: 1E-05; is: null
72 04/17/2024 Perfluorononanoic acid (PFNA) Chemical changes to Perfluorononanoic acid (PFNA) made by matthew.graesch@dnr.iowa.gov on 4/17/2024 8:48:17 AM. ||Property dw_max_level was: null; is: 1E-05
73 04/17/2024 Perfluorohexanesulfonate (PFHxS) Chemical changes to Perfluorohexanesulfonate (PFHxS) made by matthew.graesch@dnr.iowa.gov on 4/17/2024 8:48:40 AM. ||Property dw_max_level was: 1E-05; is: null
74 04/17/2024 Perfluorohexanesulfonate (PFHxS) Chemical changes to Perfluorohexanesulfonate (PFHxS) made by matthew.graesch@dnr.iowa.gov on 4/17/2024 8:49:28 AM. ||Property dw_max_level was: null; is: 1E-05
75 04/25/2024 Perfluorooctanoic Acid (PFOA) Chemical changes to Perfluorooctanoic Acid (PFOA) made by matthew.graesch@dnr.iowa.gov on 4/25/2024 2:58:34 PM. ||Property dw_max_level was: 4E-05; is: 4E-06
76 10/14/2024 Formaldehyde (air) Chemical changes to Formaldehyde (air) made by shelly.nellesen@dnr.iowa.gov on 10/14/2024 9:34:39 AM. ||Property inhal_ref_conc was: 0.01; is: 0.007
77 10/14/2024 Perfluorodecanoic Acid (PFDA) Chemical changes to Perfluorodecanoic Acid (PFDA) made by shelly.nellesen@dnr.iowa.gov on 10/14/2024 10:05:28 AM. ||Property dermal_ref_dos was: null; is: 2E-09||Property dermal_absorp_fac was: null; is: 0.001
78 10/14/2024 Chromium (VI) Chemical changes to Chromium (VI) made by shelly.nellesen@dnr.iowa.gov on 10/14/2024 11:05:50 AM. ||Property cancer_group was: D; is: A||Property oral_ref_dos was: 0.003; is: 0.0009||Property oral_slope_fac was: null; is: 0.27
79 10/14/2024 Chromium (VI) Chemical changes to Chromium (VI) made by shelly.nellesen@dnr.iowa.gov on 10/14/2024 11:07:09 AM. ||Property dermal_slope_fac was: null; is: 0.27
80 10/14/2024 Chromium (VI) Organ Respi added to chemical Chromium (VI) for sense Oral on 10/14/2024 11:07:09 AM
81 10/14/2024 Chromium (VI) Organ Gastro added to chemical Chromium (VI) for sense Oral on 10/14/2024 11:07:09 AM
82 10/14/2024 Chromium (VI) Organ Other removed from chemical Chromium (VI) for sense Oral on 10/14/2024 11:07:09 AM
83 10/14/2024 Chromium VI (for air only) Chemical changes to Chromium VI (for air only) made by shelly.nellesen@dnr.iowa.gov on 10/14/2024 11:09:06 AM. ||Property inhal_ref_conc was: 8E-06; is: 3E-05||Property inhal_unit_risk was: 1.2E-05; is: 1.8E-05