Regulations last checked for updates: May 17, 2024

Title 40 - Protection of Environment last revised: May 15, 2024
Appendix - Table 8 to Subpart GGG of Part 63—Fraction Measured (Fm) for HAP Compounds in Wastewater Streams
Chemical name CAS No. a Fm
Acetaldehyde750701.00
Acetonitrile750580.99
Acetophenone988620.31
Acrolein1070281.00
Acrylonitrile1071311.00
Allyl chloride1070511.00
Benzene714321.00
Benzyl chloride1004471.00
Biphenyl925240.86
Bromoform752521.00
Butadiene (1,3-)1069901.00
Carbon disulfide751501.00
Carbon tetrachloride562351.00
Chlorobenzene1089070.96
Chloroform676631.00
Chloroprene (2-Chloro-1,3-butadiene)1269981.00
Cumene988281.00
Dichlorobenzene (p-1,4-)1064671.00
Dichloroethane (1,2-) (Ethylene dichloride)1070621.00
Dichloroethylether (Bis(2-Chloroethyl ether))1114440.76
Dichloropropene (1,3-)5427561.00
Diethyl sulfate646750.0025
Dimethyl sulfate777810.086
Dimethylaniline (N,N-)1216970.00080
Dimethylhydrazine (1,1-)571470.38
Dinitrophenol (2,4-)512850.0077
Dinitrotoluene (2,4-)1211420.085
Dioxane (1,4-) (1,4-Diethyleneoxide)1239110.87
Epichlorohydrin(1-Chloro-2,3-epoxypropane)1068980.94
Ethyl acrylate1408851.00
Ethylbenzene1004141.00
Ethyl chloride (Chloroethane)750031.00
Ethylene dibromide (Dibromomethane)1069341.00
Ethylene glycol dimethyl ether1107140.86
Ethylene glycol monobutyl ether acetate1120720.043
Ethylene glycol monomethyl ether acetate1104960.093
Ethylene oxide752181.00
Ethylidene dichloride (1,1-Dichloroethane)753431.00
Hexachlorobenzene1187410.97
Hexachlorobutadiene876830.88
Hexachloroethane677210.50
Hexane1105431.00
Isophorone785910.47
Methanol675610.85
Methyl bromide (Bromomethane)748391.00
Methyl chloride (Chloromethane)748731.00
Methyl ethyl ketone (2-Butanone)789330.99
Methyl isobutyl ketone (Hexone)1081010.98
Methyl methacrylate806261.00
Methyl tert-butyl ether16340441.00
Methylene chloride (Dichloromethane)750921.00
Naphthalene912030.99
Nitrobenzene989530.39
Nitropropane (2-)794690.99
Phosgene754451.00
Propionaldehyde1233861.00
Propylene dichloride (1,2-Dichloropropane)788751.00
Propylene oxide755691.00
Styrene1004251.00
Tetrachloroethane (1,1,2,2-)793451.00
Tetrachloroethylene (Perchloroethylene)1271841.00
Toluene1088831.00
Toluidine (o-)955340.15
Trichlorobenzene (1,2,4-)1208211.00
Trichloroethane (1,1,1-) (Methyl chloroform)715561.00
Trichloroethane (1,1,2-) (Vinyl Trichloride)790050.98
Trichloroethylene790161.00
Trichlorophenol (2,4,5-)959541.00
Triethylamine1214481.00
Trimethylpentane (2,2,4-)5408411.00
Vinyl acetate1080541.00
Vinyl chloride (Chloroethylene)750141.00
Vinylidene chloride (1,1-Dichloroethylene)753541.00
Xylene (m-)1083831.00
Xylene (o-)954761.00
Xylene (p-)1064231.00

a CAS numbers refer to the Chemical Abstracts Service registry number assigned to specific compounds, isomers, or mixtures of compounds.

authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.