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USGS NAWQA Constituents - Volatile Organic Compounds

Parameter Name Parameter
Code
CAS
Number
1,1,1,2-Tetrachloroethane
77562
630-20-6
1,1,1-Trichloroethane
34506
71-55-6
1,1,2,2-Tetrachloroethane
34516
79-34-5
1,1,2-Trichloroethane
34511
79-00-5
1,1,2-Trichlorotrifluoroethane
77652
76-13-1
1,1-Dichloroethane
34496
75-34-3
1,1-Dichloroethylene
34501
75-35-4
1,1-Dichloropropene
77168
563-58-6
1,2,3,4-Tetramethylbenzene
49999
488-23-3
1,2,3,5-Tetramethylbenzene
50000
527-53-7
1,2,3-Trichlorobenzene
77613
87-61-6
1,2,3-Trichloropropane
77443
96-18-4
1,2,3-Trimethylbenzene
77221
526-73-8
1,2,4-Trichlorobenzene
34551
120-82-1
1,2,4-Trimethylbenzene
77222
95-63-6
1,2-Dibromo-3-chloropropane
82625
96-12-8
1,2-Dibromoethane
77651
106-93-4
1,2-Dichlorobenzene
34536
95-50-1
1,2-Dichloroethane
32103
107-06-2
1,2-Dichloropropane
34541
78-87-5
1,3,5-Trimethylbenzene
77226
108-67-8
1,3-Dichlorobenzene
34566
541-73-1
1,3-Dichloropropane
77173
142-28-9
1,4-Dichlorobenzene
34571
106-46-7
2,2-Dichloropropane
77170
594-20-7
2-Butanone
81595
78-93-3
2-Chlorotoluene
77275
95-49-8
2-Hexanone
77103
591-78-6
3-Chloropropene
78109
107-05-1
4-Chlorotoluene
77277
106-43-4
4-Isopropyl-1-methylbenzene
77356
99-87-6
4-Methyl-2-pentanone
78133
108-10-1
Acetone
81552
67-64-1
Acrylonitrile
34215
107-13-1
Benzene
34030
71-43-2
Bromobenzene
81555
108-86-1
Bromochloromethane
77297
74-97-5
Bromodichloromethane
32101
75-27-4
Bromoethene
50002
593-60-2
Bromoform
32104
75-25-2
Bromomethane
34413
74-83-9
Butylbenzene
77342
104-51-8
Carbon disulfide
77041
75-15-0
Chlorobenzene
34301
108-90-7
Chloroethane
34311
75-00-3
Chloroform
32106
67-66-3
Chloromethane
34418
74-87-3
cis-1,2-Dichloroethylene
77093
156-59-2
cis-1,3-Dichloropropene
34704
10061-01-5
Dibromochloromethane
32105
124-48-1
Dibromomethane
30217
74-95-3
Dichlorodifluoromethane
34668
75-71-8
Dichloromethane
34423
75-09-2
Diethyl ether
81576
60-29-7
Diisopropyl ether
81577
108-20-3
Ethyl methacrylate
73570
97-63-2
Ethyl tert-butyl ether
50004
637-92-3
Ethylbenzene
34371
100-41-4
Hexachlorobutadiene
39702
87-68-3
Hexachloroethane
34396
67-72-1
Isopropylbenzene
77223
98-82-8
m- and p-Xylene
85795
-
Methyl acrylate
49991
96-33-3
Methyl acrylonitrile
81593
126-98-7
Methyl iodide
77424
74-88-4
Methyl methacrylate
81597
80-62-6
n-Propylbenzene
77224
103-65-1
Naphthalene
34696
91-20-3
o-Ethyl toluene
77220
611-14-3
o-Xylene
77135
95-47-6
sec-Butylbenzene
77350
135-98-8
Styrene
77128
100-42-5
tert-Butyl methyl ether
78032
1634-04-4
tert-Butylbenzene
77353
98-06-6
tert-Pentyl methyl ether
50005
994-05-8
Tetrachloroethylene
34475
127-18-4
Tetrachloromethane
32102
56-23-5
Tetrahydrofuran
81607
109-99-9
Toluene
34010
108-88-3
trans-1,2-Dichloroethylene
34546
156-60-5
trans-1,3-Dichloropropene
34699
10061-02-6
trans-1,4-Dichloro-2-butene
73547
110-57-6
Trichloroethylene
39180
79-01-6
Trichlorofluoromethane
34488
75-69-4
Vinyl chloride
39175
75-01-4

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 Contact for NAWQA: nawqa_whq@usgs.gov
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