Westlake Chemical
Rank in Toxic 100: 47
Rank among all TRI companies: 115
Air releases 2017 (lbs): 3,209,537
Incineration transfers 2017 (lbs): 777,365
Total Air and Incineration Toxic Score 2017: 634,732
Percentage of national total 2017 toxic air and incineration score: 0.2%
EJ: Poor Share: 16%
EJ: Minority Share: 32%
You can also view this company's penalties in Violation Tracker.
You can also look at this company's state, local, and Federal subsidies in Subsidy Tracker.
This company is rank 37 on the Toxic 100 Water list .
This company has information in PERI's Greenhouse database .
Chemicals displayed below: ( display facilities ) ( display chemicals at facilities )
Advanced data displayed ( display basic data instead )
(Click on column headers to re-sort table: current sort is by revised air releases.)
(Links on chemical names lead to Scorecard chemical health effects.)
Ethylene
1,833,891
0
1
34
0.01%
14.8%
36.8%
28.8%
15.9%
10.4%
Vinyl chloride
188,563
664
31,000
69,019
10.87%
16.3%
34.8%
23.5%
17.1%
3.2%
1,2-Dichloroethane
173,203
37,735
93,000
271,151
42.72%
15.6%
33.4%
28.1%
20.9%
3.7%
Hydrochloric acid
158,373
0
180
483
0.08%
15.8%
35.7%
25.2%
18.2%
3.5%
Propylene (Propene)
91,826
0
1
1
0.00%
13.6%
34.8%
15.3%
9.6%
3.6%
Vinyl acetate
82,127
449,649
18
89
0.01%
9.8%
29.7%
14.7%
9.1%
3.5%
Tetrachloroethylene (Perchloroethylene)
66,042
36,190
930
1,177
0.19%
15.2%
35.8%
25.1%
18.0%
3.5%
Ammonia
65,618
1
7
7
0.00%
17.4%
38.1%
36.7%
24.2%
8.9%
Chloroform
55,654
6,445
82,000
54,622
8.61%
15.6%
31.5%
38.8%
29.9%
4.5%
Chlorine
52,110
0
23,000
7,642
1.20%
16.6%
37.0%
28.2%
19.9%
4.4%
1,1,1-Trichloroethane
35,416
29,600
1
1
0.00%
15.2%
35.8%
25.0%
18.0%
3.5%
Benzene
32,208
16,025
28,000
9,423
1.48%
16.3%
37.4%
14.0%
8.3%
3.4%
Styrene
31,338
314
4
1
0.00%
15.4%
36.7%
21.0%
13.6%
3.8%
Formaldehyde
30,611
0
46,000
35,099
5.53%
20.8%
46.3%
51.0%
26.1%
22.0%
Methanol
26,743
0
0
0
0.00%
19.8%
42.7%
55.0%
48.1%
3.6%
n-Hexane
26,069
0
5
4
0.00%
21.8%
47.4%
54.0%
27.9%
23.0%
Trichloroethylene
24,618
9,729
15,000
11,072
1.74%
15.2%
35.6%
25.4%
18.3%
3.5%
Chlorodifluoromethane (HCFC-22)
24,104
0
0
0
0.00%
19.7%
42.2%
54.5%
47.5%
3.8%
Chloroethane (Ethyl chloride)
22,594
95
0
0
0.00%
15.5%
35.4%
27.9%
20.6%
3.7%
Cumene
21,748
0
9
5
0.00%
19.5%
42.3%
53.0%
46.1%
3.7%
Carbon tetrachloride
15,672
1,514
21,000
5,077
0.80%
15.5%
34.1%
19.2%
12.7%
3.3%
1,3-Butadiene
15,109
0
110,000
7,859
1.24%
16.5%
39.1%
14.7%
9.0%
3.7%
CFC-12
14,760
0
5
2
0.00%
19.7%
42.2%
54.5%
47.5%
3.8%
Toluene
11,663
0
1
0
0.00%
16.9%
38.2%
18.5%
12.5%
3.6%
1,1,2-Trichloroethane
11,028
73,976
5,700
1,872
0.29%
15.4%
35.4%
26.7%
19.6%
3.6%
Ethylbenzene
8,549
0
890
106
0.02%
17.5%
40.8%
26.9%
20.7%
3.9%
Dicyclopentadiene
8,343
0
18,000
317
0.05%
15.4%
35.0%
8.4%
3.5%
2.5%
Xylene (mixed isomers)
8,049
0
35
2
0.00%
18.3%
36.6%
29.9%
23.0%
3.6%
Naphthalene
7,894
1,625
12,000
412
0.06%
16.1%
36.2%
10.5%
5.3%
2.8%
Ethylidene dichloride
6,281
14
570
101
0.02%
15.2%
35.5%
25.5%
18.4%
3.5%
Acetaldehyde
6,258
0
7,900
1,254
0.20%
21.4%
47.0%
52.9%
27.2%
22.7%
Chloroprene
6,042
0
1,100,000
132,273
20.84%
15.1%
29.7%
43.8%
34.1%
4.9%
Biphenyl
5,934
12,000
800
161
0.03%
15.1%
35.7%
24.7%
17.7%
3.5%
1,2-Dichloroethylene
5,864
6,070
110
18
0.00%
15.3%
35.7%
25.2%
18.2%
3.5%
Ethylene glycol
5,763
0
9
2
0.00%
22.3%
48.0%
55.5%
28.8%
23.6%
Maleic anhydride
4,203
0
5,000
620
0.10%
21.8%
47.3%
53.7%
27.7%
22.9%
Methyl acrylate
4,094
0
180
22
0.00%
22.4%
48.0%
55.6%
28.9%
23.6%
1,1,1,2-Tetrachloroethane
3,851
4,430
2,600
369
0.06%
15.2%
35.7%
25.0%
18.0%
3.5%
Vinylidene chloride
3,483
360
18
2
0.00%
15.1%
35.0%
27.1%
19.8%
3.6%
Phthalic anhydride
3,352
2,120
180
13
0.00%
23.3%
53.7%
67.9%
61.0%
1.1%
tert-Butyl alcohol
1,645
509
10
1
0.00%
12.8%
33.9%
23.8%
13.7%
7.6%
Butyl acrylate
1,424
0
3,500
146
0.02%
22.6%
48.2%
56.2%
29.3%
23.8%
1,1,2,2-Tetrachloroethane
1,422
9,997
210,000
6,877
1.08%
15.6%
35.7%
23.8%
17.1%
3.4%
Copper compounds
1,110
0
1,500
30
0.00%
15.1%
35.6%
25.1%
18.1%
3.5%
Antimony compounds
1,060
0
18,000
926
0.15%
11.5%
22.5%
38.7%
33.5%
2.1%
Hexachlorobenzene
559
4,014
1,600,000
3,843
0.61%
16.5%
36.3%
11.7%
6.5%
2.6%
Pentachloroethane
554
16,002
0
0
0.00%
0.0%
0.0%
0.0%
0.0%
0.0%
1,2-Butylene oxide
435
1
180
3
0.00%
15.1%
35.7%
25.0%
17.9%
3.5%
Hexachloro-1,3-butadiene
336
33,000
7,900
85
0.01%
15.2%
35.8%
25.0%
17.9%
3.5%
Hexachloroethane
326
3,600
14,000
162
0.03%
16.1%
37.0%
30.9%
23.8%
3.6%
Anthracene
234
0
3
0
0.00%
15.7%
34.0%
7.7%
2.5%
2.7%
Chlorobenzene
193
2,157
4
0
0.00%
15.6%
34.6%
18.1%
11.8%
3.2%
Phenol
160
0
18
0
0.00%
20.4%
41.9%
54.5%
47.2%
3.9%
Nickel compounds
156
0
930,000
1,445
0.23%
20.3%
40.5%
53.0%
45.4%
4.0%
Methyl tert-butyl ether
141
0
93
0
0.00%
15.9%
37.0%
21.6%
14.0%
4.3%
Mercury compounds
128
0
12,000
10
0.00%
15.1%
35.9%
5.3%
2.8%
0.8%
Isoprene
99
0
0
0
0.00%
0.0%
0.0%
0.0%
0.0%
0.0%
Zinc compounds
90
0
100
0
0.00%
21.1%
39.6%
51.7%
41.4%
6.4%
Dichlorobenzene (mixed isomers)
63
4,500
18
0
0.00%
15.5%
36.0%
25.7%
18.3%
3.6%
Dichloromethane
54
0
36
0
0.00%
18.6%
37.4%
30.3%
23.6%
3.4%
Chloromethane
53
0
640
1
0.00%
19.7%
42.0%
54.4%
47.3%
3.8%
Acetophenone
45
0
10
0
0.00%
19.7%
42.4%
54.8%
47.8%
3.7%
Polycyclic aromatic compounds
32
19
390,000
49
0.01%
19.3%
37.1%
41.8%
33.8%
4.0%
1,4-Dichlorobenzene
24
4
3,900
0
0.00%
16.4%
36.3%
10.0%
5.0%
2.5%
Bromine
24
0
2,100
2
0.00%
15.2%
35.7%
25.0%
18.0%
3.5%
Bis(2-chloroethyl)ether
23
5,831
1,200,000
389
0.06%
14.3%
29.5%
36.2%
27.6%
4.5%
Chromium compounds
22
0
43,000,000
6,382
1.01%
19.8%
41.7%
54.2%
47.0%
3.8%
Copper
21
0
1,500
0
0.00%
16.3%
36.2%
9.9%
4.9%
2.5%
Lead
11
0
23,000
0
0.00%
15.7%
36.3%
26.3%
18.6%
3.7%
Sodium nitrite
10
0
10
0
0.00%
13.9%
27.5%
42.8%
33.3%
4.9%
Dinitrobutyl phenol (Dinoseb)
9
0
1,000
0
0.00%
15.9%
37.0%
21.6%
14.0%
4.3%
1,2,4-Trichlorobenzene
7
5,600
18
0
0.00%
15.7%
36.3%
26.3%
18.6%
3.7%
Ethylene oxide
5
0
11,000,000
664
0.10%
16.7%
36.7%
29.6%
22.3%
3.7%
trans-1,4-Dichloro-2-butene
4
0
0
0
0.00%
0.0%
0.0%
0.0%
0.0%
0.0%
Asbestos (friable)
3
0
170,000,000
3,102
0.49%
20.9%
38.5%
51.3%
42.9%
4.2%
Phenanthrene
2
667
0
0
0.00%
0.0%
0.0%
0.0%
0.0%
0.0%
1,2,4-Trimethylbenzene
2
0
58
0
0.00%
15.9%
36.9%
21.2%
13.7%
4.3%
Lead compounds
2
0
23,000
0
0.00%
20.9%
38.5%
51.3%
42.9%
4.2%
1,4-Dichloro-2-butene
1
34
9,300,000
299
0.05%
15.5%
36.2%
22.9%
16.2%
3.4%
Polychlorinated biphenyls (PCBs)
0
90
360,000
0
0.00%
15.7%
36.3%
26.3%
18.6%
3.7%
Dioxin and dioxin-like compounds
0
1
1,400,000,000
2
0.00%
17.9%
35.7%
37.6%
29.7%
4.0%
Pentachlorobenzene
0
2,783
1,300
0
0.00%
0.0%
0.0%
0.0%
0.0%
0.0%
For explanations of most columns above, including the EJ Shares, see the technical notes .
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