PERI
Home

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.

>>New Toxic 100 Search

>>Combined Toxic / Greenhouse 100 Lists

>>Toxic 100 Air Top Company List

>>Toxic 100 Water Top Company List

>>Greenhouse 100 Top Company List

>>Toxic 100 Home Page