Cal. Code Regs. tit. 17 § 93001
Current through Register 2024 Notice Reg. No. 45, November 8, 2024
Each substance listed in this section has been identified as a hazardous air pollutant pursuant to subsection (b) of Section 112 of the federal Clean Air Act (42 U.S.C. Section 7412(b)) and has been designated by the State Board to be a toxic air contaminant pursuant to Health and Safety Code Section 39657.
| Substance | |
| Acetaldehyde | |
| Acetamide | |
| Acetonitrile | |
| Acetophenone | |
| 2-Acetylaminofluorene | |
| Acrolein | |
| Acrylamide | |
| Acrylic acid | |
| Acrylonitrile | |
| Allyl chloride | |
| 4-Aminobiphenyl | |
| Aniline | |
| o-Anisidine | |
| Asbestos | |
| Benzene (including benzene from gasoline) | |
| Benzidine | |
| Benzotrichloride | |
| Benzyl chloride | |
| Biphenyl | |
| Bis (2-ethylhexyl) phthalate (DEHP) | |
| Bis (chloromethyl) ether | |
| Bromoform | |
| 1,3-Butadiene | |
| Calcium cyanamide | |
| Caprolactam | |
| Captan | |
| Carbaryl | |
| Carbon disulfide | |
| Carbon tetrachloride | |
| Carbonyl sulfide | |
| Catechol | |
| Chloramben | |
| Chlordane | |
| Chlorine | |
| Chloroacetic acid | |
| 2-Chloroacetophenone | |
| Chlorobenzene | |
| Chlorobenzilate | |
| Chloroform | |
| Chloromethyl methyl ether | |
| Chloroprene | |
| Cresols/Cresylic acid (isomers and mixture) | |
| o-Cresol | |
| m-Cresol | |
| p-Cresol | |
| Cumene | |
| 2,4-D, salts and esters | |
| DDE | |
| Diazomethane | |
| Dibenzofurans | |
| 1,2-Dibromo-3-chloropropane | |
| Dibutylphthalate | |
| 1,4-Dichlorobenzene (p) | |
| 3,3-Dichlorobenzidene | |
| Dichloroethyl ether (Bis (2-chloroethyl) ether) | |
| 1,3-Dichloropropene | |
| Dichlorvos | |
| Diethanolamine | |
| N.N-Diethyl aniline (N.N-Dimethylaniline) | |
| Diethyl sulfate | |
| 3,3-Dimethoxybenzidine | |
| Dimethyl aminoazobenzene | |
| 3,3-Dimethyl benzidine | |
| Dimethyl carbamoyl chloride | |
| Dimethyl formamide | |
| 1,1-Dimethyl hydrazine | |
| Dimethyl phthalate | |
| Dimethyl sulfate | |
| 4,6-Dinitro-o-cresol, and salts | |
| 2,4-Dinitrophenol | |
| 2,4-Dinitrotoluene | |
| 1,4-Dioxane (1,4-Diethyleneoxide) | |
| 1,2-Diphenylhydrazine | |
| Epichlorohydrin (1-Chloro-2,3-epoxypropane) | |
| 1,2-Epoxybutane | |
| Ethyl acrylate | |
| Ethyl benzene | |
| Ethyl carbamate (Urethane) | |
| Ethyl chloride (Chloroethane) | |
| Ethylene dibromide (Dibromoethane) | |
| Ethylene dichloride (1,2-Dichloroethane) | |
| Ethylene glycol | |
| Ethylene imine (Aziridine) | |
| Ethylene oxide | |
| Ethylene thiourea | |
| Ethylidene dichloride (1,1-Dichloroethane) | |
| Formaldehyde | |
| Heptachlor | |
| Hexachlorobenzene | |
| Hexachlorobutadiene | |
| Hexachlorocyclopentadiene | |
| Hexachloroethane | |
| Hexamethylene-1,6-diisocyanate | |
| Hexamethylphosphoramide | |
| Hexane | |
| Hydrazine | |
| Hydrochloric acid | |
| Hydrogen fluoride (Hydrofluoric acid) | |
| Hydroquinone | |
| Isophorone | |
| Lindane (all isomers) | |
| Maleic anhydride | |
| Methanol | |
| Methoxychlor | |
| Methyl bromide (Bromomethane) | |
| Methyl chloride (Chloromethane) | |
| Methyl chloroform (1,1,1-Trichloroethane) | |
| Methyl ethyl ketone (2-Butanone) | |
| Methyl hydrazine | |
| Methyl iodide (Iodomethane) | |
| Methyl isobutyl ketone (Hexone) | |
| Methyl isocyanate | |
| Methyl methacrylate | |
| Methyl tert butyl ether | |
| 4,4-Methylene bis(2-chloroaniline) | |
| Methylene chloride (Dichloromethane) | |
| Methylene diphenyl diisocyanate (MDI) | |
| 4,4-Methylenedianiline | |
| Naphthalene | |
| Nitrobenzene | |
| 4-Nitrobiphenyl | |
| 4-Nitrophenol | |
| 2-Nitropropane | |
| N-Nitroso-N-methylurea | |
| N-Nitrosodimethylamine | |
| N-Nitrosomorpholine | |
| Parathion | |
| Pentachloronitrobenzene (Quintobenzene) | |
| Pentachlorophenol | |
| Phenol | |
| p-Phenylenediamine | |
| Phosgene | |
| Phosphine | |
| Phosphorus | |
| Phthalic anhydride | |
| Polychlorinated biphenyls (Aroclors) | |
| 1,3-Propane sultone | |
| beta-Propiolactone | |
| Propionaldehyde | |
| Propoxur (Baygon) | |
| Prophylene dichloride (1,2-Dichloropropane) | |
| Propylene oxide | |
| 1,2-Propylenimine (2-Methylaziridine) | |
| Quinoline | |
| Quinone | |
| Styrene | |
| Styrene oxide | |
| 2,3,7,8-Tetrachlorodibenzo-p-dioxin | |
| 1,1,2,2-Tetrachloroethane | |
| Tetrachloroethylene (Perchloroethylene) | |
| Titanium tetrachloride | |
| Toluene | |
| 2,4-Toluene diamine | |
| 2,4-Toluene diisocyanate | |
| o-Toluidine | |
| Toxaphene (chlorinated camphene) | |
| 1,2,4-Trichlorobenzene | |
| 1,1,2-Trichloroethane | |
| Trichloroethylene | |
| 2,4,5-Trichlorophenol | |
| 2,4,6-Trichlorophenol | |
| Triethylamine | |
| Trifluralin | |
| 2,2,4-Trimethylpentane | |
| Vinyl acetate | |
| Vinyl bromide | |
| Vinyl chloride | |
| Vinylidene chloride (1,1-Dichloroethylene) | |
| Xylenes (isomers and mixture) | |
| o-Xylenes | |
| m-Xylenes | |
| p-Xylenes | |
| Antimony Compounds | |
| Arsenic Compounds (inorganic including arsine) | |
| Beryllium Compounds | |
| Cadmium Compounds | |
| Chromium Compounds | |
| Cobalt Compounds | |
| Coke Oven Emissions | |
| Cyanide Compounds1 | |
| Glycol ethers2 | |
| Lead Compounds | |
| Manganese Compounds | |
| Mercury Compounds | |
| Fine mineral fibers3 | |
| Nickel Compounds | |
| Polycyclic Organic Matter4 | |
| Radionuclides (including radon)5 | |
| Selenium Compounds | |
| NOTE: For all listing above which contain the word "compounds" and for glycol ethers, the following applies: Unless otherwise specified, these listings are defined as including any unique chemical substance that contains the named chemical (i.e., antimony, arsenic, etc) as part of that chemical's infrastructure. | |
| 1 X1CN where X=HN1 or any other group where a formal dissociation may occur. For example KCN or Ca(CN)2 | |
| 2 includes mono- and di-ethers of ethylene glycol, diethylene glycol, and triethylene glycol (R(OCH2CH2)n-OR1 where | |
| n = 1,2 or 3 | |
| R = alkyl or aryl groups | |
| R1 = R, H, or groups which, when removed, yield glycol ethers with the structure; | |
| R(OCH2CH)n-OH. Polymers are excluded from the glycol category. | |
| 3 includes mineral fiber emissions from facilities manufacturing or processing glass, rock, or slag fibers (or other mineral derived fibers) of average diameter 1 micrometer or less. | |
| 4 includes organic compounds with more than one benzene ring, and which have a boiling point greater than or equal to 100°C. | |
| 5 a type of atom which spontaneously undergoes radioactive decay. | |
Cal. Code Regs. Tit. 17, § 93001
Note: Authority cited: Sections 39657, 39600, 39601 and 39662, Health and Safety Code. Reference: Sections 39650, 39655, 39656, 39657, 39658, 39659, 39660, 39661 and 39662, Health and Safety Code.