NEI HAP Names - Page 10 of 10

This page lists hazardous air pollutant (HAP) category names used in EPA's National Emissions Inventory (NEI) database and AirData reports, along with their systematic chemical names and identifiers as defined by EPA's Chemical Identification Data Standard.

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Category					Pollutant
HAP Name	CAS Number	Systematic Name	EPA ID Number	EPA Name	NEI Code	NEI Name	CAS Number	Systematic Name	EPA Name
Styrene	100-42-5	Benzene, ethenyl-		Styrene	100425	Styrene	100-42-5	Benzene, ethenyl-	Styrene
Styrene Oxide	96-09-3	Oxirane, phenyl-		Styrene oxide	96093	Styrene Oxide	96-09-3	Oxirane, phenyl-	Styrene oxide
1,1,2,2-Tetrachloroethane	79-34-5	Ethane, 1,1,2,2-tetrachloro-		1,1,2,2-Tetrachloroethane	79345	1,1,2,2-Tetrachloroethane	79-34-5	Ethane, 1,1,2,2-tetrachloro-	1,1,2,2-Tetrachloroethane
Tetrachloroethylene (Perchloroethylene)	127-18-4	Ethene, tetrachloro-		Tetrachloroethylene	127184	Tetrachloroethylene	127-18-4	Ethene, tetrachloro-	Tetrachloroethylene
Titanium Tetrachloride	7550-45-0	Titanium chloride (TiCl4)		Titanium tetrachloride	7550450	Titanium Tetrachloride	7550-45-0	Titanium chloride (TiCl4)	Titanium tetrachloride
Toluene	108-88-3	Benzene, methyl-		Toluene	108883	Toluene	108-88-3	Benzene, methyl-	Toluene
2,4-Toluene Diisocyanate	584-84-9	Benzene, 2,4-diisocyanato-1-methyl-		Toluene-2,4-diisocyanate	584849	2,4-Toluene Diisocyanate	584-84-9	Benzene, 2,4-diisocyanato-1-methyl-	Toluene-2,4-diisocyanate
Toluene-2,4-Diamine	95-80-7	1,3-Benzenediamine, 4-methyl-		2,4-Toluenediamine	95807	Toluene-2,4-Diamine	95-80-7	1,3-Benzenediamine, 4-methyl-	2,4-Toluenediamine
o-Toluidine	95-53-4	Benzenamine, 2-methyl-		o-Toluidine	95534	o-Toluidine	95-53-4	Benzenamine, 2-methyl-	o-Toluidine
Toxaphene (Chlorinated Camphene)	8001-35-2	Toxaphene		Toxaphene	8001352	Toxaphene	8001-35-2	Toxaphene	Toxaphene
1,2,4-Trichlorobenzene	120-82-1	Benzene, 1,2,4-trichloro-		1,2,4-Trichlorobenzene	120821	1,2,4-Trichlorobenzene	120-82-1	Benzene, 1,2,4-trichloro-	1,2,4-Trichlorobenzene
1,1,2-Trichloroethane	79-00-5	Ethane, 1,1,2-trichloro-		1,1,2-Trichloroethane	79005	1,1,2-Trichloroethane	79-00-5	Ethane, 1,1,2-trichloro-	1,1,2-Trichloroethane
Trichloroethylene	79-01-6	Ethene, trichloro-		Trichloroethylene	79016	Trichloroethylene	79-01-6	Ethene, trichloro-	Trichloroethylene
2,4,5-Trichlorophenol	95-95-4	Phenol, 2,4,5-trichloro-		2,4,5-Trichlorophenol	95954	2,4,5-Trichlorophenol	95-95-4	Phenol, 2,4,5-trichloro-	2,4,5-Trichlorophenol
2,4,6-Trichlorophenol	88-06-2	Phenol, 2,4,6-trichloro-		2,4,6-Trichlorophenol	88062	2,4,6-Trichlorophenol	88-06-2	Phenol, 2,4,6-trichloro-	2,4,6-Trichlorophenol
Triethylamine	121-44-8	Ethanamine, N,N-diethyl-		Triethylamine	121448	Triethylamine	121-44-8	Ethanamine, N,N-diethyl-	Triethylamine
Trifluralin	1582-09-8	Benzenamine, 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)-		Trifluralin	1582098	Trifluralin	1582-09-8	Benzenamine, 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)-	Trifluralin
2,2,4-Trimethylpentane	540-84-1	Pentane, 2,2,4-trimethyl-		2,2,4-Trimethylpentane	540841	2,2,4-Trimethylpentane	540-84-1	Pentane, 2,2,4-trimethyl-	2,2,4-Trimethylpentane
Vinyl Acetate	108-05-4	Acetic acid ethenyl ester		Vinyl acetate	108054	Vinyl Acetate	108-05-4	Acetic acid ethenyl ester	Vinyl acetate
Vinyl Bromide	593-60-2	Ethene, bromo-		Vinyl bromide	593602	Vinyl Bromide	593-60-2	Ethene, bromo-	Vinyl bromide
Vinyl Chloride	75-01-4	Ethene, chloro-		Vinyl chloride	75014	Vinyl Chloride	75-01-4	Ethene, chloro-	Vinyl chloride
Vinylidene Chloride (1,1-Dichloroethylene)	75-35-4	Ethene, 1,1-dichloro-		1,1-Dichloroethylene	75354	Vinylidene Chloride	75-35-4	Ethene, 1,1-dichloro-	1,1-Dichloroethylene
Xylenes (Mixed Isomers)	1330-20-7	Benzene, dimethyl-		Xylene	95476	o-Xylene	95-47-6	Benzene, 1,2-dimethyl-	o-Xylene
					108383	m-Xylene	108-38-3	Benzene, 1,3-dimethyl-	m-Xylene
					106423	p-Xylene	106-42-3	Benzene, 1,4-dimethyl-	p-Xylene
					1330207	Xylenes (Mixture of o, m, and p Isomers)	1330-20-7	Benzene, dimethyl-	Xylene

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