Toluene
Toluene releases at Marathon Petroleum CO LP Illinois Refining Div fell from 24k lb to 11k lb (55% lower) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Marathon Petroleum CO LP Illinois Refining Div
Total reported releases 558k lb held roughly steady year over year (-3%). Total releases concentrations have fallen 49% since 2010.
400 S MARATHON AVE, Robinson, Illinois · 324110 · Petroleum · operated by Marathon Petroleum CORP
Anomaly engine
Notable Signals
Zinc compounds
Zinc compounds at Marathon Petroleum CO LP Illinois Refining Div have more than three-quarters since 2010 (through 2024).
n-Hexane
n-Hexane at Marathon Petroleum CO LP Illinois Refining Div 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 have fallen 40% 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 have fallen 10% since 2010.
Methanol
Methanol concentrations are up 75% since 2010.
Ammonia
Ammonia concentrations have more than doubled since 2010.
Benzene
Benzene concentrations have fallen 23% since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have fallen 29% since 2010.
n-Hexane
n-Hexane concentrations have more than halved since 2010.
Toluene
Toluene concentrations have fallen 39% since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (8 Census block groups, population-weighted demographics): a population of 5,920. Why we surface this →
24.2%
Low-income
6.2%
People of color
4.7%
Under age 5
23.5%
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.