Chromium compounds (except for chromite ore mined in the Transvaal Region)
Chromium compounds (except for chromite ore mined in the Transvaal Region) releases at Big River Steel LLC rose from 6k lb to 211k lb (34.2×) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Big River Steel LLC
Total reported releases 299k lb rose by an order of magnitude year over year (+615%). Total releases concentrations are up 91% since 2017.
2027 E STATE HIGHWAY 198, Osceola, Arkansas · 331110 · Primary Metals · operated by US Steel CORP
Anomaly engine
Notable Signals
Zinc compounds
Zinc compounds releases at Big River Steel LLC rose from 23k lb to 39k lb between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Chromium compounds (except for chromite ore mined in the Transvaal Region)
Chromium compounds (except for chromite ore mined in the Transvaal Region) concentrations have more than doubled since 2018.
Zinc compounds
Zinc compounds concentrations have more than doubled since 2017.
Vanadium compounds
Vanadium compounds volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Certain glycol ethers
Certain glycol ethers volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Aluminum (fume or dust)
Aluminum (fume or dust) concentrations have more than doubled since 2017.
Nickel compounds
Nickel compounds concentrations have fallen 16% since 2017.
Manganese compounds
Manganese compounds concentrations have more than doubled since 2016.
Lead compounds
Lead compounds concentrations have more than doubled since 2016.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (1 Census block groups, population-weighted demographics): a population of 1,376. Why we surface this →
62.9%
Low-income
75.4%
People of color
10.1%
Under age 5
3.9%
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.