Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
Appendix - Table 34 to Subpart G of Part 63—Fraction Measured (Fm) and Fraction Emitted (Fe) For HAP Compounds in Wastewater Streams
Chemical name CAS Number a Fm Fe
Acetaldehyde750701.000.48
Acetonitrile750580.990.36
Acetophenone988620.310.14
Acrolein1070281.000.43
Acrylonitrile1071311.000.43
Allyl chloride1070511.000.89
Benzene714321.000.80
Benzyl chloride1004471.000.47
Biphenyl925240.860.45
Bromoform752521.000.49
Butadiene (1,3-)1069901.000.98
Carbon disulfide751501.000.92
Carbon tetrachloride562351.000.94
Chlorobenzene1089071.000.73
Chloroform676631.000.78
Chloroprene (2-Chloro-1,3-butadiene)1269981.000.68
Cumene988281.000.88
Dichlorobenzene (p-)1064671.000.72
Dichloroethane (1,2-) (Ethylene dichloride)1070621.000.64
Dichloroethyl ether (Bis(2-Chloroethyl ether))1114440.760.21
Dichloropropene (1,3-)5427561.000.76
Diethyl sulfate646750.00250.11
Dimethyl sulfate777810.0860.079
Dimethylaniline (N,N-)1216970.000800.34
Dimethylhydrazine (1,1-)571470.380.054
Dinitrophenol (2,4-)512850.00770.060
Dinitrotoluene (2,4-)1211420.0850.18
Dioxane (1,4-) (1,4-Diethyleneoxide)1239110.870.18
Epichlorohydrin(1-Chloro-2,3-epoxypropane)1068980.940.35
Ethyl acrylate1408851.000.48
Ethylbenzene1004141.000.83
Ethyl chloride (Chloroethane)750031.000.90
Ethylene dibromide (Dibromomethane)1069341.000.57
Ethylene glycol dimethyl ether1107140.860.32
Ethylene glycol monobutyl ether acetate1120720.0430.067
Ethylene glycol monomethyl ether acetate1104960.0930.048
Ethylene oxide752181.000.50
Ethylidene dichloride (1,1-Dichloroethane)753431.000.79
Hexachlorobenzene1187410.970.64
Hexachlorobutadiene876830.880.86
Hexachloroethane677210.500.85
Hexane1105431.001.00
Isophorone785910.510.11
Methanol675610.850.17
Methyl bromide (Bromomethane)748391.000.85
Methyl chloride (Chloromethane)748731.000.84
Methyl isobutyl ketone (Hexone)1081010.980.53
Methyl methacrylate806261.000.37
Methyl tert-butyl ether16340441.000.57
Methylene chloride (Dichloromethane)750921.000.77
Naphthalene912030.990.51
Nitrobenzene989530.390.23
Nitropropane (2-)794690.990.44
Phosgene754451.000.87
Propionaldehyde1233861.000.41
Propylene dichloride (1,2-Dichloropropane)788751.000.72
Propylene oxide755691.000.60
Styrene1004251.000.80
Tetrachloroethane (1,1,2,2-)793451.000.46
Tetrachloroethylene (Perchloroethylene)1271841.000.92
Toluene1088831.000.80
Toluidine (o-)955340.150.052
Trichlorobenzene (1,2,4-)1208211.000.64
Trichloroethane (1,1,1-) (Methyl chloroform)715561.000.91
Trichloroethane (1,1,2-) (Vinyl Trichloride)790051.000.60
Trichloroethylene790161.000.87
Trichlorophenol (2,4,5-)959540.110.086
Triethylamine1214481.000.38
Trimethylpentane (2,2,4-)5408411.001.00
Vinyl acetate1080541.000.59
Vinyl chloride (Chloroethylene)750141.000.97
Vinylidene chloride (1,1-Dichloroethylene)753541.000.94
Xylene (m-)1083831.000.82
Xylene (o-)954761.000.79
Xylene (p-)1064231.000.82

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

[59 FR 19468, Apr. 22, 1994, as amended at 71 FR 76615, Dec. 21, 2006]
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.