Covestro LLC
Total reported releases 355k lb rose meaningfully year over year (+26%). Total releases concentrations have fallen 22% since 2010.
8500 W BAY RD MS-21, Baytown, Texas · 325199 · Chemicals · operated by Covestro LLC
Notable Signals
No notable signals at this facility for the current reporting year. See chemicals and equity context below for the full picture.
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 24% since 2010.
Ammonia
Ammonia concentrations have more than doubled since 2010.
Chlorobenzene
Chlorobenzene concentrations have more than halved since 2010.
Aniline
Aniline concentrations are roughly unchanged from 2012.
Styrene
Styrene concentrations are up 40% since 2014.
Dichloromethane
Dichloromethane concentrations have more than halved since 2010.
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 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 have fallen 41% since 2018.
Who Lives Next To This Facility
Within 3 miles of this facility (13 Census block groups, population-weighted demographics): a population of 20,698. 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.