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

For explanations of most columns above, including the EJ Shares, see the technical notes.

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