Diisocyanates
Diisocyanates releases at Dow Chemical CO Freeport Facility rose from 4k lb to 24k lb (5.7×) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
Dow Chemical CO Freeport Facility
Total reported releases 883k lb rose modestly year over year (+10%). Total releases concentrations have more than halved since 2010.
2301 N BRAZOSPORT BLVD, Freeport, Texas · 325199 · Chemicals · operated by Dow INC
Anomaly engine
Notable Signals
Propylene
Propylene at Dow Chemical CO Freeport Facility have more than halved since 2010 (through 2024).
Ethylene
Ethylene at Dow Chemical CO Freeport Facility have more than halved since 2010 (through 2024).
Total reported releases
Total reported releases at Dow Chemical CO Freeport Facility have more than halved since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Ethylene
Ethylene concentrations have more than halved since 2010.
Ammonia
Ammonia concentrations are up 31% since 2010.
Propylene
Propylene concentrations have more than halved since 2010.
Benzene
Benzene concentrations are up 76% since 2010.
Zinc compounds
Zinc compounds concentrations have more than halved since 2010.
Asbestos (friable)
Asbestos (friable) volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
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 are up 43% since 2010.
Diisocyanates
Diisocyanates concentrations have more than doubled since 2021.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (13 Census block groups, population-weighted demographics): a population of 13,118. Why we surface this →
49.8%
Low-income
78.7%
People of color
6.3%
Under age 5
12.6%
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.