Ethylene
Ethylene releases at Indorama Ventures Olefins LLC rose from 6k lb to 74k lb (11.4×) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Indorama Ventures Olefins LLC
Total reported releases 119k lb more than doubled year over year (+168%). Total releases concentrations have more than halved since 2016.
4300 HIGHWAY 108, Westlake, Louisiana · 325110 · Chemicals · operated by Indorama Ventures USA Holdings LP
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
Ethylene
Ethylene concentrations have more than halved since 2019.
Benzene
Benzene concentrations are up 35% since 2019.
Ammonia
Ammonia concentrations have more than doubled since 2018.
1,3-Butadiene
1,3-Butadiene concentrations have more than doubled since 2019.
Toluene
Toluene concentrations are up 21% since 2019.
Styrene
Styrene concentrations have more than doubled since 2019.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than doubled since 2019.
Ethylbenzene
Ethylbenzene concentrations have more than doubled since 2019.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (8 Census block groups, population-weighted demographics): a population of 12,662. Why we surface this →
26.8%
Low-income
14.7%
People of color
6.9%
Under age 5
15.1%
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.