Carbonyl sulfide
Carbonyl sulfide releases at Tesoro Los Angeles Refinery-Carson Operations rose from 10k lb to 28k lb (2.9×) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Tesoro Los Angeles Refinery-Carson Operations
Total reported releases 1.0M lb rose modestly year over year (+7%). Total releases concentrations are up 24% since 2010.
24696 S WILMINGTON AVE, Carson, California · 324110 · Petroleum · operated by Marathon Petroleum CORP
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
Ammonia
Ammonia concentrations are up 49% since 2010.
Zinc compounds
Zinc compounds concentrations have fallen 22% since 2010.
Methanol
Methanol concentrations are up 73% since 2010.
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) concentrations are roughly unchanged from 2010.
Carbonyl sulfide
Carbonyl sulfide concentrations have more than doubled since 2010.
Toluene
Toluene concentrations are up 48% since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations are up 32% since 2010.
n-Hexane
n-Hexane concentrations are roughly unchanged from 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (113 Census block groups, population-weighted demographics): a population of 187,096. Why we surface this →
33.8%
Low-income
92.2%
People of color
5.5%
Under age 5
14.4%
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.