40 CFR Table 6
List of Hazardous Air Pollutants That Must Be Counted Toward Total Organic HAP Content if Present at 0.1 Percent or More by Mass
June 9, 2020
Open Table
| Chemical name | CAS No. |
|---|---|
| 1,1,2,2-Tetrachloroethane | 79-34-5 |
| 1,1,2-Trichloroethane | 79-00-5 |
| 1,1-Dimethylhydrazine | 57-14-7 |
| 1,2-Dibromo-3-chloropropane | 96-12-8 |
| 1,2-Diphenylhydrazine | 122-66-7 |
| 1,3-Butadiene | 106-99-0 |
| 1,3-Dichloropropene | 542-75-6 |
| 1,4-Dioxane | 123-91-1 |
| 2,4,6-Trichlorophenol | 88-06-2 |
| 2,4/2,6-Dinitrotoluene (mixture) | 25321-14-6 |
| 2,4-Dinitrotoluene | 121-14-2 |
| 2,4-Toluene diamine | 95-80-7 |
| 2-Nitropropane | 79-46-9 |
| 3,3'-Dichlorobenzidine | 91-94-1 |
| 3,3'-Dimethoxybenzidine | 119-90-4 |
| 3,3'-Dimethylbenzidine | 119-93-7 |
| 4,4'-Methylene bis(2-chloroaniline) | 101-14-4 |
| Acetaldehyde | 75-07-0 |
| Acrylamide | 79-06-1 |
| Acrylonitrile | 107-13-1 |
| Allyl chloride | 107-05-1 |
| alpha-Hexachlorocyclohexane (a-HCH) | 319-84-6 |
| Aniline | 62-53-3 |
| Benzene | 71-43-2 |
| Benzidine | 92-87-5 |
| Benzotrichloride | 98-07-7 |
| Benzyl chloride | 100-44-7 |
| beta-Hexachlorocyclohexane (b-HCH) | 319-85-7 |
| Bis(2-ethylhexyl)phthalate | 117-81-7 |
| Bis(chloromethyl)ether | 542-88-1 |
| Bromoform | 75-25-2 |
| Captan | 133-06-2 |
| Carbon tetrachloride | 56-23-5 |
| Chlordane | 57-74-9 |
| Chlorobenzilate | 510-15-6 |
| Chloroform | 67-66-3 |
| Chloroprene | 126-99-8 |
| Cresols (mixed) | 1319-77-3 |
| DDE | 3547-04-4 |
| Dichloroethyl ether | 111-44-4 |
| Dichlorvos | 62-73-7 |
| Epichlorohydrin | 106-89-8 |
| Ethyl acrylate | 140-88-5 |
| Ethylene dibromide | 106-93-4 |
| Ethylene dichloride | 107-06-2 |
| Ethylene oxide | 75-21-8 |
| Ethylene thiourea | 96-45-7 |
| Ethylidene dichloride (1,1-Dichloroethane) | 75-34-3 |
| Formaldehyde | 50-00-0 |
| Heptachlor | 76-44-8 |
| Hexachlorobenzene | 118-74-1 |
| Hexachlorobutadiene | 87-68-3 |
| Hexachloroethane | 67-72-1 |
| Hydrazine | 302-01-2 |
| Isophorone | 78-59-1 |
| Lindane (hexachlorocyclohexane, all isomers) | 58-89-9 |
| m-Cresol | 108-39-4 |
| Methylene chloride | 75-09-2 |
| Naphthalene | 91-20-3 |
| Nitrobenzene | 98-95-3 |
| Nitrosodimethylamine | 62-75-9 |
| o-Cresol | 95-48-7 |
| o-Toluidine | 95-53-4 |
| Parathion | 56-38-2 |
| p-Cresol | 106-44-5 |
| p-Dichlorobenzene | 106-46-7 |
| Pentachloronitrobenzene | 82-68-8 |
| Pentachlorophenol | 87-86-5 |
| Propoxur | 114-26-1 |
| Propylene dichloride | 78-87-5 |
| Propylene oxide | 75-56-9 |
| Quinoline | 91-22-5 |
| Tetrachloroethene | 127-18-4 |
| Toxaphene | 8001-35-2 |
| Trichloroethylene | 79-01-6 |
| Trifluralin | 1582-09-8 |
| Vinyl bromide | 593-60-2 |
| Vinyl chloride | 75-01-4 |
| Vinylidene chloride | 75-35-4 |
[84 FR 9634, Mar. 15, 2019]
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