| CAS No. | Chemical name | EPA de minimis, tons/yr* |
|---|---|---|
| 92671 | 4-Aminobiphenyl | 1.0 |
| 96093 | Styrene oxide | 1.0 |
| 64675 | Diethyl sulfate | 1.0 |
| 59892 | N-Nitrosomorpholine | 1.0 |
| 68122 | Dimethyl formamide | 1.0 |
| 680319 | Hexamethylphosphoramide | 0.01 |
| 60355 | Acetamide | 1.0 |
| 101779 | 4,4′-Methylenedianiline | 1.0 |
| 90040 | o-Anisidine | 1.0 |
| 1746016 | 2,3,7,8-Tetrachlorodibenzo-p-dioxin | 0.00000006 |
| 92875 | Benzidine | 0.00003 |
| 684935 | N-Nitroso-N-methylurea | 0.00002 |
| 542881 | Bis(chloromethyl) ether | 0.00003 |
| 79447 | Dimethyl carbamoyl chloride | 0.002 |
| 75558 | 1,2-Propylenimine (2-Methyl aziridine) | 0.0003 |
| 57147 | 1,1-Dimethyl hydrazine | 0.0008 |
| 96128 | 1,2-Dibromo-3-chloropropane | 0.001 |
| 62759 | N-Nitrosodimethylamine | 0.0001 |
| 50328 | Benzo (a) pyrene | 0.001 |
| 1336363 | Polychlorinated biphenyls (Aroclors) | 0.0009 |
| 76448 | Heptachlor | 0.002 |
| 119937 | 3,3′-Dimethyl benzidine | 0.001 |
| 79061 | Acrylamide | 0.002 |
| 118741 | Hexachlorobenzene | 0.004 |
| 57749 | Chlordane | 0.005 |
| 1120714 | 1,3-Propane sultone | 0.003 |
| 106990 | 1,3-Butadiene | 0.007 |
| 53963 | 2-Acetylaminoflourine | 0.0005 |
| 91941 | 3,3′-Dichlorobenzidine | 0.02 |
| 58899 | Lindane (hexachlorocyclohexane, gamma) | 0.005 |
| 95807 | 2,4-Toluene diamine | 0.002 |
| 111444 | Dichloroethyl ether (Bis(2-chloroethyl)ether) | 0.006 |
| 122667 | 1,2—Diphenylhydrazine | 0.009 |
| 8001352 | Toxaphene (chlorinated camphene) | 0.006 |
| 121142 | 2,4-Dinitrotoluene | 0.002 |
| 119904 | 3,3′-Dimethoxybenzidine | 0.01 |
| 50000 | Formaldehyde | 0.2 |
| 101144 | 4,4′-Methylene bis(2-chloroaniline) | 0.02 |
| 107131 | Acrylonitrile | 0.03 |
| 106934 | Ethylene dibromide(1,2-Dibromoethane) | 0.01 |
| 72559 | DDE (1,1-p-chlorophenyl 1-2 dichloroethylene) | 0.01 |
| 510156 | Chlorobenzilate | 0.04 |
| 62737 | Dichlorvos | 0.02 |
| 75014 | Vinyl chloride | 0.02 |
| 75218 | Ethylene oxide | 0.09 |
| 96457 | Ethylene thiourea | 0.06 |
| 593602 | Vinyl bromide (bromoethene) | 0.06 |
| 67663 | Chloroform | 0.09 |
| 87865 | Pentachlorophenol | 0.07 |
| 51796 | Ethyl carbamate (Urethane) | 0.08 |
| 107062 | Ethylene dichloride (1,2-Dichloroethane) | 0.08 |
| 78875 | Propylene dichloride (1,2-Dichloropropane) | 0.1 |
| 56235 | Carbon tetrachloride | 0.1 |
| 71432 | Benzene | 0.2 |
| 140885 | Ethyl acrylate | 0.1 |
| 75569 | Propylene oxide | 0.5 |
| 62533 | Aniline | 0.1 |
| 106467 | 1,4-Dichlorobenzene(p) | 0.3 |
| 88062 | 2,4,6-Trichlorophenol | 0.6 |
| 117817 | Bis (2-ethylhexyl) phthalate (DEHP) | 0.5 |
| 95534 | o-Toluidine | 0.4 |
| 114261 | Propoxur | 2.0 |
| 79016 | Trichloroethylene | 1.0 |
| 123911 | 1,4-Dioxane (1,4-Diethyleneoxide) | 0.6 |
| 75070 | Acetaldehyde | 0.9 |
| 75252 | Bromoform | 2.0 |
| 133062 | Captan | 2.0 |
| 106898 | Epichlorohydrin | 2.0 |
| 75092 | Methylene chloride (Dichloromethane) | 4.0 |
| 127184 | Tetrachloroethylene (Perchloroethylene) | 4.0 |
| 53703 | Dibenz (ah) anthracene | 0.01 |
| 218019 | Chrysene | 0.01 |
| 60117 | Dimethyl aminoazobenzene | 1.0 |
| 56553 | Benzo (a) anthracene | 0.01 |
| 205992 | Benzo (b) fluoranthene | 0.01 |
| 79469 | 2-Nitropropane | 1.0 |
| 542756 | 1,3-Dichloropropene | 1.0 |
| 57976 | 7,12-Dimethylbenz (a) anthracene | 0.01 |
| 225514 | Benz(c)acridine | 0.01 |
| 193395 | Indeno(1,2,3-cd)pyrene | 0.01 |
| 189559 | 1,2:7,8-Dibenzopyrene | 0.01 |
| 79345 | 1,1,2,2-Tetrachloroethane | 0.03 |
| 91225 | Quinoline | 0.0006 |
| 75354 | Vinylidene chloride (1,1-Dichloroethylene) | 0.04 |
| 87683 | Hexachlorobutadiene | 0.09 |
| 82688 | Pentachloronitrobenzene (Quintobenzene) | 0.03 |
| 78591 | Isophorone | 0.7 |
| 79005 | 1,1,2-Trichloroethane | 0.1 |
| 74873 | Methyl chloride (Chloromethane) | 1.0 |
| 67721 | Hexachloroethane | 0.5 |
| 1582098 | Trifluralin | 0.9 |
| 1319773 | Cresols/Cresylic acid (isomers and mixture) | 1.0 |
| 108394 | m-Cresol | 1.0 |
| 75343 | Ethylidene dichloride (1,1-Dichloroethane) | 1.0 |
| 95487 | o-Cresol | 1.0 |
| 106445 | p-Cresol | 1.0 |
| 74884 | Methyl iodide (Iodomethane) | 1.0 |
| 100425 | Styrene | 1.0 |
| 107051 | Allyl chloride | 1.0 |
| 334883 | Diazomethane | 1.0 |
| 95954 | 2,4,5—Trichlorophenol | 1.0 |
| 133904 | Chloramben | 1.0 |
| 106887 | 1,2—Epoxybutane | 1.0 |
| 108054 | Vinyl acetate | 1.0 |
| 126998 | Chloroprene | 1.0 |
| 123319 | Hydroquinone | 1.0 |
| 92933 | 4-Nitrobiphenyl | 1.0 |
| 56382 | Parathion | 0.1 |
| 13463393 | Nickel Carbonyl | 0.1 |
| 60344 | Methyl hydrazine | 0.006 |
| 151564 | Ethylene imine | 0.0003 |
| 77781 | Dimethyl sulfate | 0.1 |
| 107302 | Chloromethyl methyl ether | 0.1 |
| 57578 | beta-Propiolactone | 0.1 |
| 100447 | Benzyl chloride | 0.04 |
| 98077 | Benzotrichloride | 0.0006 |
| 107028 | Acrolein | 0.04 |
| 584849 | 2,4—Toluene diisocyanate | 0.1 |
| 75741 | Tetramethyl lead | 0.01 |
| 78002 | Tetraethyl lead | 0.01 |
| 12108133 | Methylcyclopentadienyl manganese | 0.1 |
| 624839 | Methyl isocyanate | 0.1 |
| 77474 | Hexachlorocyclopentadiene | 0.1 |
| 62207765 | Fluomine | 0.1 |
| 10210681 | Cobalt carbonyl | 0.1 |
| 79118 | Chloroacetic acid | 0.1 |
| 534521 | 4,6-Dinitro-o-cresol, and salts | 0.1 |
| 101688 | Methylene diphenyl diisocyanate | 0.1 |
| 108952 | Phenol | 0.1 |
| 62384 | Mercury, (acetato-o) phenyl | 0.01 |
| 98862 | Acetophenone | 1.0 |
| 108316 | Maleic anhydride | 1.0 |
| 532274 | 2-Chloroacetophenone | 0.06 |
| 51285 | 2,4-Dinitrophenol | 1.0 |
| 109864 | 2-Methyoxy ethanol | 10.0 |
| 98953 | Nitrobenzene | 1.0 |
| 74839 | Methyl bromide (Bromomethane) | 10.0 |
| 75150 | Carbon disulfide | 1.0 |
| 121697 | N,N-Dimethylaniline | 1.0 |
| 106514 | Quinone | 5.0 |
| 123386 | Propionaldehyde | 5.0 |
| 120809 | Catechol | 5.0 |
| 85449 | Phthalic anhydride | 5.0 |
| 463581 | Carbonyl sulfide | 5.0 |
| 132649 | Dibenzofurans | 5.0 |
| 100027 | 4-Nitrophenol | 5.0 |
| 540841 | 2,2,4-Trimethylpentane | 5.0 |
| 111422 | Diethanolamine | 5.0 |
| 822060 | Hexamethylene-1,6-diisocyanate | 5.0 |
| Glycol ethersa | 5.0 | |
| Polycyclic organic matterb | 0.01 |
*These values are based on the de minimis levels provided in the proposed rulemaking pursuant to section 112(g) of the Act using a 70-year lifetime exposure duration for all VHAP. Default assumptions and the de minimis values based on inhalation reference doses (RfC) are not changed by this adjustment.
aExcept for ethylene glycol butyl ether, ethylene glycol ethyl ether (2-ethoxy ethanol), ethylene glycol hexyl ether, ethylene glycol methyl ether (2-methoxyethanol), ethylene glycol phenyl ether, ethylene glycol propyl ether, ethylene glycol mono-2-ethylhexyl ether, diethylene glycol butyl ether, diethylene glycol ethyl ether, diethylene glycol methyl ether, diethylene glycol hexyl ether, diethylene glycol phenyl ether, diethylene glycol propyl ether, triethylene glycol butyl ether, triethylene glycol ethyl ether, triethylene glycol methyl ether, triethylene glycol propyl ether, ethylene glycol butyl ether acetate, ethylene glycol ethyl ether acetate, and diethylene glycol ethyl ether acetate.
bExcept for benzo(b)fluoranthene, benzo(a)anthracene, benzo(a)pyrene, 7,12-dimethylbenz(a)anthracene, benz(c)acridine, chrysene, dibenz(ah) anthracene, 1,2:7,8-dibenzopyrene, indeno(1,2,3-cd)pyrene, but including dioxins and furans.
[63 FR 71383, Dec. 28, 1998]
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