Total reported releases
Total reported releases at Totalenergies Petrochemicals & Refining USA Inc-Port Arthur have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Totalenergies Petrochemicals & Refining USA Inc-Port Arthur
Total reported releases 505k lb rose sharply year over year (+67%). Total releases concentrations have more than doubled since 2010.
7600 32ND ST, Port Arthur, Texas · 324110 · Petroleum · operated by Totalenergies Holdings USA INC
Anomaly engine
Notable Signals
Hydrogen cyanide
Hydrogen cyanide releases at Totalenergies Petrochemicals & Refining USA Inc-Port Arthur rose from 139k lb to 382k lb (2.7×) between 2023 and 2024.
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) releases at Totalenergies Petrochemicals & Refining USA Inc-Port Arthur fell from 38k lb to 3k lb (92% lower) between 2023 and 2024.
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) at Totalenergies Petrochemicals & Refining USA Inc-Port Arthur have more than three-quarters since 2011 (through 2024).
Showing the 4 most editorially weighted signals out of 5. Lower-severity signals fold into the chemical breakdown and history charts below.
Chemicals reported · most recent year
What This Facility Releases
Hydrogen cyanide
Hydrogen cyanide concentrations have more than doubled since 2016.
n-Hexane
n-Hexane concentrations have more than doubled since 2010.
Ethylene
Ethylene concentrations have more than doubled since 2010.
Toluene
Toluene concentrations have fallen 36% since 2010.
Propylene
Propylene concentrations have more than doubled since 2010.
Ammonia
Ammonia concentrations have more than halved since 2011.
Hydrogen sulfide
Hydrogen sulfide concentrations are up 21% since 2012.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have fallen 32% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (22 Census block groups, population-weighted demographics): a population of 26,644. Why we surface this →
41.0%
Low-income
55.3%
People of color
9.0%
Under age 5
14.8%
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.