Benzene
Benzene releases at Westlake Petrochemicals Ethylene rose from 14k lb to 71k lb (5.2×) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Westlake Petrochemicals Ethylene
Total reported releases 276k lb rose meaningfully year over year (+29%). Total releases concentrations have fallen 32% since 2010.
900 E HIGHWAY 108, Sulphur, Louisiana · 325211 · Chemicals · operated by Westlake CORP
Anomaly engine
Notable Signals
Propylene
Propylene at Westlake Petrochemicals Ethylene have more than three-quarters since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Ethylene
Ethylene concentrations have fallen 39% since 2010.
Benzene
Benzene concentrations have more than doubled since 2010.
Propylene
Propylene concentrations have more than halved since 2010.
Ammonia
Ammonia concentrations are up 36% since 2015.
Styrene
Styrene concentrations are up 42% since 2010.
1,3-Butadiene
1,3-Butadiene concentrations have fallen 33% since 2010.
Ethylbenzene
Ethylbenzene concentrations are up 73% since 2010.
Toluene
Toluene concentrations have more than doubled since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (10 Census block groups, population-weighted demographics): a population of 14,875. Why we surface this →
28.1%
Low-income
12.0%
People of color
7.5%
Under age 5
13.5%
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.