Cal. Code Regs. Tit. 22, div. 4.5, ch. 51, app I to Section 69021

Current through Register 2024 Notice Reg. No. 45, November 8, 2024
Appendix I to Section 69021 - California OEHHA Toxicity Criteria

Table A

Cancer Potency Values

Non-cancer Health-Hazard Values

Oral Slope Factor (CSFo)

Inhalation Unit Risk (IUR)

Oral Reference Dose (RfDo)

Chronic Reference Exposure Level (REL)

CAS RegistryCSFoIURRfDoREL
AnalyteNumber(mk/kg-d)-1Reference(µg/m3)-1Reference(mk/kg-d)-1Reference(µg/m3)-1Reference
1Acetaldehyde75-07-0----2.70E-06OEHHA--------
2Ammonia7664-41-7------------2.00E+02OEHHA
3Arsenic7440-38-29.50E+00OEHHA PHG----3.50E-06OEHHA1.50E-02OEHHA
4Arsine7784-42-1--------3.50E-06OEHHA1.50E-02OEHHA
5Benzene71-43-21.00E-01OEHHA2.90E-05OEHHA----3.00E+00OEHHA
6Benzidine92-87-55.00E+02OEHHA1.40E-01OEHHA--------
7Benzo[a]anthracene56-55-3----1.10E-04OEHHA--------
8Benzo[a]pyrene50-32-8----1.10E-03OEHHA--------
9Benzo[b]fluoranthene205-99-2----1.10E-04OEHHA--------
10Benzo[k]fluoranthene207-08-9----1.10E-04OEHHA--------
11Beryllium7440-41-7--------2.00E-04OEHHA PHG7.00E-03OEHHA
12Beryllium oxide1304-56-9--------2.00E-04OEHHA PHG7.00E-03OEHHA
13Beryllium sulfate13510-49-1--------2.00E-04OEHHA PHG7.00E-03OEHHA
14Boron Trifluoride7637-07-2--------4.00E-02OEHHA (Fluorides)----
151,3-Butadiene106-99-06.00E-01OEHHA1.70E-04OEHHA----2.00E+00OEHHA
16Cadmium7440-43-9----4.20E-03OEHHA--------
17Carbon tetrachloride56-23-5------------4.00E+01OEHHA
18Carbonyl sulfide463-58-1------------1.00E+01OEHHA
19Chromium (VI)18540-29-95.00E-01OEHHA PHG1.50E-01OEHHA--------
20Chrysene218-01-9----1.10E-05OEHHA--------
21Dibenz[a,h]anthracene53-70-34.10E+00OEHHA1.20E-03OEHHA--------
223,3'-Dichlorobenzidine91-94-11.20E+00OEHHA3.40E-04OEHHA--------
231,1-Dichloroethene75-35-4------------7.00E+01OEHHA
24Epichlorohydrin106-89-88.00E-02OEHHA2.30E-05OEHHA--------
25bis(2-Chloroethyl) ether111-44-42.50E+00OEHHA7.10E-04OEHHA--------
26Ethylene dibromide106-93-4------------8.00E-01OEHHA
27Formaldehyde50-00-0------------9.00E+00OEHHA
28HCH (mixed isomers)608-73-14.00E+00OEHHA1.10E-03OEHHA--------
29Hexachlorobenzene118-74-11.80E+00OEHHA5.10E-04OEHHA--------
30Hexachloro dibenzo-p-dioxin Mixture (2:1 1,2,3,7,8,9- and 1,2,3,6,7,8-)Hexachloro- dibenzo-p-dioxin Mixture----3.80E+00OEHHA (WHO-05 TEF)--------
31Hydrochloric acid7647-01-0------------9.00E+00OEHHA
32Indeno[1,2,3-cd]pyrene193-39-5----1.10E-04OEHHA--------
33Lead and compounds#7439-92-1--------See Table BOEHHA----
34Lead subacetate1335-32-63.80E-02OEHHA1.10E-05OEHHA--------
35Mercuric Chloride7487-94-7--------1.60E-04OEHHA REL3.00E-02OEHHA
36Mercury7439-97-6--------1.60E-04OEHHA REL3.00E-02OEHHA
37Methylene Chloride75-09-2----1.00E-06OEHHA----4.00E+02OEHHA
384,4'-Methylene-bis(2-chloroaniline)101-14-41.50E+00OEHHA------------
39Methylene diphenyl diisocyanate101-68-8------------8.00E-02OEHHA
40Polymeric methylenediphenyl diisocyanate9016-87-9------------8.00E-02OEHHA
41Nickel7440-02-0----2.60E-04OEHHA1.10E-02OEHHA1.40E-02OEHHA
42Nickel Hydroxide12054-48-7----2.60E-04OEHHA1.10E-02OEHHA1.40E-02OEHHA
43Nickel Oxide1313-99-1----2.60E-04OEHHA1.10E-02OEHHA2.00E-02OEHHA
44Nickel refinery dustNickel refinery dust----2.60E-04OEHHA1.10E-02OEHHA1.40E-02OEHHA
45Nickel subsulfide12035-72-2--------1.10E-02OEHHA1.40E-02OEHHA
46N-Nitroso-di-n-butylamine924-16-31.10E+01OEHHA3.10E-03OEHHA--------
47Styrene100-42-5------------9.00E+02OEHHA
48Tetrachloroethene127-18-45.40E-01OEHHA PHG6.10E-06OEHHA--------
49Toluene108-88-3------------3.00E+02OEHHA
50Toluene 2,4/2,6-Diisocyanates26471-62-53.90E-02OEHHA--------8.00E-03OEHHA
51Toluene-2,4-diisocyanate584-84-93.90E-02OEHHA (toluene diisocyantes)--------8.00E-03OEHHA (toluene diisocyantes)
52Toluene-2,6-diisocyanate91-08-73.90E-02OEHHA (toluene diisocyantes)--------8.00E-03OEHHA (toluene diisocyantes)
53Toxaphene8001-35-21.20E+00OEHHA------------
541,1,1-Trichloroethane71-55-6------------1.00E+03OEHHA
552,4,6-Trichlorophenol88-06-27.00E-02OEHHA2.00E-05OEHHA--------
56Vinyl chloride75-01-4----7.80E-05OEHHA--------
FOOTNOTES:
CAS = Chemical Abstracts Service
CSFo = oral cancer slope factor
IUR = inhalation unit risk factor
OEHHA = California Office of Environmental Health Hazard Assessment
PHG = Public Health Goal
RfD = chronic oral referen
REL = chronic reference exposure level
WHO-05 TEF = 2005 World Health Organization, Toxicity Equivalency
Factor

Table BNon-Cancer Health-Hazard Values
Line #AnalyteCAS Registry NumberBenchmark Incremental Change in Blood Lead ([MICRO]g/dL)Reference
1Lead and compounds#7439-92-11.0OEHHA
FOOTNOTES:
# The toxicity criterion for lead represents a benchmark incremental change in blood lead concentration. The units are in microgram per deciliter ([MICRO]g/dL).
CAS = Chemical Abstracts Service
OEHHA = California Office of Environmental Health Hazard Assessment

Cal. Code Regs. Tit. 22, div. 4.5, ch. 51, app I to Section 69021