Cyanide compounds
Cyanide compounds at Uss-Clairton Plant have more than three-quarters since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Uss-Clairton Plant
Total reported releases 3.2M lb fell meaningfully year over year (-15%). Total releases concentrations are roughly unchanged from 2010.
400 STATE ST MS 71, Clairton, Pennsylvania · 324199 · Petroleum · operated by US Steel CORP
Anomaly engine
Notable Signals
Ammonia
Ammonia at Uss-Clairton Plant have more than halved since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations are roughly unchanged from 2010.
Hydrogen sulfide
Hydrogen sulfide concentrations have fallen 23% since 2012.
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.
Ammonia
Ammonia concentrations have more than halved since 2010.
Methanol
Methanol concentrations are up 27% since 2010.
Phenol
Phenol concentrations have fallen 43% since 2010.
Carbon disulfide
Carbon disulfide concentrations are roughly unchanged from 2012.
Benzene
Benzene concentrations have fallen 20% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (28 Census block groups, population-weighted demographics): a population of 31,015. Why we surface this →
32.7%
Low-income
18.5%
People of color
5.1%
Under age 5
21.3%
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.