Total reported releases 84k lb rose sharply year over year (+62%). Total releases concentrations have more than halved since 2011.
3353 YANKEE ROAD, Middletown, Ohio · 324199 · Petroleum · operated by Suncoke Energy INC
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) releases at Middletown Coke CO rose from 20k lb to 52k lb (2.7×) between 2023 and 2024.
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) at Middletown Coke CO have more than halved since 2011 (through 2024).
Total reported releases at Middletown Coke CO have more than halved since 2011 (through 2024).
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) at Middletown Coke CO have more than halved since 2011 (through 2024).
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than halved since 2011.
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have more than halved since 2011.
Lead compounds concentrations have more than doubled since 2011.
Hydrogen fluoride concentrations have fallen 45% since 2017.
Mercury compounds concentrations are up 17% since 2011.
Dioxin and dioxin-like compounds volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Within 3 miles of this facility (34 Census block groups, population-weighted demographics): a population of 41,208. Why we surface this →
Low-income
People of color
Under age 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.