Westlake Chemical Air releases 2020 (lbs): 4,250,735Incineration transfers 2020 (lbs): 14,569,383this company's penalties in Violation Tracker.this company's state, local, and Federal subsidies in Subsidy Tracker.rank 30 on the Toxic 100 Water list .rank 98 on the Greenhouse 100 list . display facilities ) ( display chemicals at facilities ) Basic data displayed ( display advanced data instead ) (Links on chemical names lead to New Jersey Right To Know Hazardous Substance Fact Sheets that have information on health effects.)
Ethylene
2,691,412
0
61
0.01%
14.7%
29.1%
Vinyl chloride
201,516
20,518
93,540
10.64%
15.7%
26.3%
Propylene
151,820
160,474
3
0.00%
14.9%
16.5%
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
141,208
0
182
0.02%
16.3%
19.5%
1,2-Dichloroethane
136,464
13,291,427
225,648
25.66%
15.4%
29.8%
Chlorodifluoromethane (HCFC-22)
93,405
0
0
0.00%
16.9%
49.8%
Acetophenone
88,718
0
3
0.00%
15.9%
12.4%
Vinyl acetate
73,471
0
75
0.01%
11.0%
20.1%
Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia i
70,127
178
6
0.00%
16.8%
32.8%
Chloroform
62,563
5,741
40,861
4.65%
15.5%
37.4%
n-Hexane (Hexane)
60,357
0
9
0.00%
19.5%
48.6%
Chlorine
48,348
0
6,775
0.77%
15.9%
28.7%
Benzene
43,140
276,325
12,836
1.46%
15.3%
14.6%
Tetrachloroethylene
42,485
15,993
1,039
0.12%
15.7%
26.7%
1,1,1-Trichloroethane
35,810
44,500
1
0.00%
15.7%
26.5%
Formaldehyde
30,762
0
39,285
4.47%
19.9%
51.7%
Methanol
29,183
10
0
0.00%
17.3%
53.4%
Trichloroethylene
24,301
9,161
11,345
1.29%
15.6%
26.9%
1,3-Butadiene
21,186
0
23,797
2.71%
14.6%
17.8%
Styrene
19,300
2,746
1
0.00%
14.7%
21.9%
Ethylene glycol
16,534
346
7
0.00%
14.1%
25.4%
Toluene
15,604
116,962
0
0.00%
15.5%
21.0%
Carbon tetrachloride
14,881
742
4,553
0.52%
15.7%
18.5%
Dichlorodifluoromethane (CFC-12)
13,860
0
2
0.00%
17.2%
54.6%
1,1,2-Trichloroethane
12,863
8,550
2,277
0.26%
15.7%
27.7%
Chloroethane
12,780
2
0
0.00%
15.6%
29.6%
Ethylidene dichloride (1,1-Dichloroethane)
9,560
290
180
0.02%
15.7%
26.7%
Dicyclopentadiene
8,867
0
271
0.03%
14.8%
8.3%
Naphthalene
8,591
116,055
374
0.04%
15.3%
11.3%
Dichloromethane (Methylene chloride)
8,413
1
11
0.00%
15.7%
26.7%
Ethylbenzene
7,838
1,123
174
0.02%
14.8%
21.2%
Acetaldehyde
7,171
0
1,561
0.18%
19.7%
50.2%
Xylene (mixed isomers)
6,733
11,368
2
0.00%
15.7%
19.3%
1,1,1,2-Tetrachloroethane
5,341
2,100
511
0.06%
15.7%
26.7%
Methyl acrylate
4,195
0
23
0.00%
20.9%
55.4%
Maleic anhydride
4,121
0
611
0.07%
20.1%
51.8%
Phthalic anhydride
3,352
0
27
0.00%
20.6%
69.9%
Vinylidene chloride (1,1-Dichloroethylene)
3,157
92
2
0.00%
15.6%
27.5%
Chlorobenzene
3,062
468,132
0
0.00%
15.2%
43.7%
Isoprene
2,891
0
0
0.00%
0.0%
0.0%
Cumene
2,281
1
0
0.00%
16.1%
10.7%
1,2-Dichloroethylene
1,829
1,100
6
0.00%
15.7%
27.2%
Butyl acrylate
1,669
0
176
0.02%
21.0%
55.9%
Pentachloroethane
1,595
1,908
0
0.00%
0.0%
0.0%
1,1,2,2-Tetrachloroethane
1,391
3,014
6,130
0.70%
15.6%
28.2%
Ethylene oxide
1,248
0
392,306
44.61%
14.8%
24.0%
Antimony compounds 750
0
470
0.05%
10.0%
41.1%
1,2-Butylene oxide
647
1
4
0.00%
15.6%
26.6%
tert-Butyl alcohol (tert-Butanol)
563
0
0
0.00%
19.2%
49.0%
Hexachlorobenzene
489
2,301
2,577
0.29%
15.6%
11.5%
Zinc compounds 344
0
1
0.00%
10.2%
41.4%
Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or brom 338
0
4
0.00%
15.7%
26.7%
Hexachloroethane
286
620
143
0.02%
15.8%
29.0%
Methyl tert-butyl ether
270
0
0
0.00%
15.8%
24.4%
Nickel
265
0
1,208
0.14%
15.8%
26.9%
Anthracene
245
0
0
0.00%
15.6%
6.9%
Biphenyl
201
0
1
0.00%
15.6%
8.3%
Phenol
192
0
0
0.00%
17.8%
55.1%
Nickel compounds 135
0
587
0.07%
18.8%
52.7%
Mercury compounds 130
0
10
0.00%
15.4%
5.8%
Hexachloro-1,3-butadiene (Hexachlorobutadiene)
120
6,904
19
0.00%
15.7%
26.6%
Dichlorobenzene (mixed isomers)
60
167
0
0.00%
15.9%
27.1%
1,2,4-Trimethylbenzene
58
0
0
0.00%
14.7%
22.5%
Copper
45
0
0
0.00%
15.5%
10.0%
1,4-Dichlorobenzene (p-Dichlorobenzene)
40
0
0
0.00%
15.6%
10.1%
Polycyclic aromatic compounds
34
2
65
0.01%
15.7%
28.9%
Chloroprene
31
0
316
0.04%
13.9%
32.5%
Bromine
24
0
2
0.00%
15.7%
26.7%
Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processi 16
0
7,098
0.81%
21.5%
52.1%
Bis(2-chloroethyl) ether
13
77
135
0.02%
16.4%
20.3%
Lead
12
0
3
0.00%
15.1%
24.6%
1,2,4-Trichlorobenzene
10
260
0
0.00%
16.3%
27.6%
Dinitrobutyl phenol (Dinoseb)
6
0
0
0.00%
15.8%
24.4%
trans-1,4-Dichloro-2-butene
3
0
0
0.00%
0.0%
0.0%
Asbestos (friable)
3
0
1,846
0.21%
19.5%
52.0%
Phenanthrene
2
0
0
0.00%
0.0%
0.0%
Lead compounds 2
0
0
0.00%
19.5%
52.0%
Mercury
2
0
1
0.00%
15.0%
24.2%
1,4-Dichloro-2-butene
1
52
303
0.03%
16.7%
23.3%
Pentachlorobenzene
0
88
0
0.00%
16.3%
27.6%
Manganese compounds 0
0
0
0.00%
24.7%
50.1%
Polychlorinated biphenyls
0
51
0
0.00%
16.3%
27.6%
Dioxin and dioxin-like compounds (Manufacturing; and the processing or otherwise use of dioxin and dioxin like compounds if the dioxin and dioxin like
0
2
2
0.00%
17.0%
35.4%
For explanations of most columns above, including the EJ Shares, see the technical notes .
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