Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) at Wood River Refinery have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Wood River Refinery
Total reported releases 2.8M lb rose modestly year over year (+6%). Total releases concentrations have more than doubled since 2010.
900 S CENTRAL AVE, Roxana, Illinois · 324110 · Petroleum · operated by Wrb Refining LP
Anomaly engine
Notable Signals
Total reported releases
Total reported releases at Wood River Refinery have more than doubled since 2010 (through 2024).
n-Hexane
n-Hexane releases at Wood River Refinery rose from 30k lb to 119k lb (3.9×) between 2023 and 2024.
Zinc compounds
Zinc compounds releases at Wood River Refinery rose from 28k lb to 48k lb between 2023 and 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
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than doubled since 2010.
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations are up 25% since 2010.
n-Hexane
n-Hexane concentrations have more than doubled since 2010.
Zinc compounds
Zinc compounds concentrations have more than doubled since 2010.
Manganese compounds
Manganese compounds concentrations have fallen 12% since 2023.
Benzene
Benzene concentrations are roughly unchanged from 2010.
Toluene
Toluene concentrations have fallen 27% since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have fallen 36% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (23 Census block groups, population-weighted demographics): a population of 23,217. Why we surface this →
35.2%
Low-income
10.2%
People of color
5.9%
Under age 5
15.3%
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.