Propylene oxide
Propylene oxide releases at Huntsman Petrochemical LLC fell from 11k lb to 97 lb (99% lower) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Huntsman Petrochemical LLC
Total reported releases 565k lb rose modestly year over year (+10%). Total releases concentrations are roughly unchanged from 2010.
5451 JEFFERSON CHEMICAL RD, Conroe, Texas · 325199 · Chemicals · operated by Huntsman CORP
Anomaly engine
Notable Signals
Ethylene oxide
Ethylene oxide releases at Huntsman Petrochemical LLC fell from 12k lb to 141 lb (99% lower) between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Ammonia
Ammonia concentrations are up 17% since 2010.
Cyclohexane
Cyclohexane concentrations have more than doubled since 2010.
Methanol
Methanol concentrations have more than halved since 2010.
Nonylphenol
Nonylphenol concentrations have more than doubled since 2015.
Dimethylamine
Dimethylamine concentrations have fallen 46% since 2010.
Nickel
Nickel concentrations have more than doubled since 2010.
Diethanolamine
Diethanolamine concentrations have more than halved since 2010.
Ethylene glycol
Ethylene glycol concentrations have more than halved since 2010.
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 17,927. Why we surface this →
30.8%
Low-income
63.1%
People of color
8.4%
Under age 5
8.8%
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.