40 C.F.R. § 63 app Table 1 to Subpart DD of Part 63

Current through May 31, 2024
Appendix Table 1 to Subpart DD of Part 63 - List of Hazardous Air Pollutants (HAP) for Subpart DD

CAS No.a Chemical name fm 305
75-07-0Acetaldehyde1.000
75-05-8Acetonitrile0.989
98-86-2Acetophenone0.314
107-02-8Acrolein1.000
107-13-1Acrylonitrile0.999
107-05-1Allyl chloride1.000
71-43-2Benzene (includes benzene in gasoline)1.000
98-07-7Benzotrichloride (isomers and mixture)0.958
100-44-7Benzyl chloride1.000
92-52-4Biphenyl0.864
542-88-1Bis(chloromethyl)etherb0.999
75-25-2Bromoform0.998
106-99-01,3-Butadiene1.000
75-15-0Carbon disulfide1.000
56-23-5Carbon tetrachloride1.000
43-58-1Carbonyl sulfide1.000
133-90-4Chloramben0.633
108-90-7Chlorobenzene1.000
67-66-3Chloroform1.000
107-30-2Chloromethyl methyl etherb1.000
126-99-8Chloroprene1.000
98-82-8Cumene1.000
94-75-72,4-D, salts and esters0.167
334-88-3Diazomethanec0.999
132-64-9Dibenzofurans0.967
96-12-81,2-Dibromo-3-chloropropane1.000
106-46-71,4-Dichlorobenzene(p)1.000
107-06-2Dichloroethane (Ethylene dichloride)1.000
111-44-4Dichloroethyl ether (Bis(2-chloroethyl ether)0.757
542-75-61,3-Dichloropropene1.000
79-44-7Dimethyl carbamoyl chloridec0.150
64-67-5Diethyl sulfate0.0025
77-78-1Dimethyl sulfate0.086
121-69-7N,N-Dimethylaniline0.0008
51-28-52,4-Dinitrophenol0.0077
121-14-22,4-Dinitrotoluene0.0848
123-91-11,4-Dioxane (1,4-Diethyleneoxide)0.869
106-89-8Epichlorohydrin (1-Chloro-2,3-epoxypropane)0.939
106-88-71,2-Epoxybutane1.000
140-88-5Ethyl acrylate1.000
100-41-4Ethyl benzene1.000
75-00-3Ethyl chloride (Chloroethane)1.000
106-93-4Ethylene dibromide (Dibromoethane)0.999
107-06-2Ethylene dichloride (1,2-Dichloroethane)1.000
151-56-4Ethylene imine (Aziridine)0.867
75-21-8Ethylene oxide1.000
75-34-3Ethylidene dichloride (1,1-Dichloroethane)1.000
Glycol ethersd that have a Henry's Law constant value equal to or greater than 0.1 Y/X (1.8 * 10-6 atm/gm-mole/m3) at 25°C(e)
118-74-1Hexachlorobenzene0.97
87-68-3Hexachlorobutadiene0.88
67-72-1Hexachloroethane0.499
110-54-3Hexane1.000
78-59-1Isophorone0.506
58-89-9Lindane (all isomers)1.000
67-56-1Methanol0.855
74-83-9Methyl bromide (Bromomethane)1.000
74-87-3Methyl chloride (Choromethane)1.000
71-55-6Methyl chloroform (1,1,1-Trichloroethane)1.000
78-93-3Methyl ethyl ketone (2-Butanone)0.990
74-88-4Methyl iodide (Iodomethane)1.0001
108-10-1Methyl isobutyl ketone (Hexone)0.9796
624-83-9Methyl isocyanate1.000
80-62-6Methyl methacrylate0.916
1634-04-4Methyl tert butyl ether1.000
75-09-2Methylene chloride (Dichloromethane)1.000
91-20-3Naphthalene0.994
98-95-3Nitrobenzene0.394
79-46-92-Nitropropane0.989
82-68-8Pentachloronitrobenzene (Quintobenzene)0.839
87-86-5Pentachlorophenol0.0898
75-44-5Phosgenec1.000
123-38-6Propionaldehyde0.999
78-87-5Propylene dichloride (1,2-Dichloropropane)1.000
75-56-9Propylene oxide1.000
75-55-81,2-Propylenimine (2-Methyl aziridine)0.945
100-42-5Styrene1.000
96-09-3Styrene oxide0.830
79-34-51,1,2,2-Tetrachloroethane0.999
127-18-4Tetrachloroethylene (Perchloroethylene)1.000
108-88-3Toluene1.000
95-53-4o-Toluidine0.152
120-82-11,2,4-Trichlorobenzene1.000
71-55-61,1,1-Trichloroethane (Methyl chlorform)1.000
79-00-51,1,2-Trichloroethane (Vinyl trichloride)1.000
79-01-6Trichloroethylene1.000
95-95-42,4,5-Trichlorophenol0.108
88-06-22,4,6-Trichlorophenol0.132
121-44-8Triethylamine1.000
540-84-12,2,4-Trimethylpentane1.000
108-05-4Vinyl acetate1.000
593-60-2Vinyl bromide1.000
75-01-4Vinyl chloride1.000
75-35-4Vinylidene chloride (1,1-Dichloroethylene)1.000
1330-20-7Xylenes (isomers and mixture)1.000
95-47-6o-Xylenes1.000
108-38-3m-Xylenes1.000
106-42-3p-Xylenes1.000

NOTES:

fm 305 = Method 305 fraction measure factor.

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

b. Denotes a HAP that hydrolyzes quickly in water, but the hydrolysis products are also HAP chemicals.

c. Denotes a HAP that may react violently with water, exercise caustic is an expected analyte.

d. Denotes a HAP that hydrolyzes slowly in water.

e. The fm 305 factors for some of the more common glycol ethers can be obtained by contacting the Waste and Chemical Processes Group, Office of Air Quality Planning and Standards, Research Triangle Park, NC 27711.

40 C.F.R. 63 app Table 1 to Subpart DD of Part 63

64 FR 38981, July 20, 1999