Total reported releases
Total reported releases at Alpek Polyester Mississippi INC have risen 65% since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Alpek Polyester Mississippi INC
Total reported releases 102k lb rose meaningfully year over year (+34%). Total releases concentrations are up 65% since 2010.
3303 PORT & HARBOR DR, Bay Saint Louis, Mississippi · 325211 · Chemicals · operated by Alpek Polyester USA LLC
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
Ethylene glycol
Ethylene glycol concentrations have more than doubled since 2010.
Acetaldehyde
Acetaldehyde concentrations are roughly unchanged from 2010.
1,4-Dioxane
1,4-Dioxane concentrations are roughly unchanged from 2010.
Antimony compounds
Antimony compounds concentrations have more than halved since 2010.
Cobalt compounds
Cobalt compounds concentrations have more than halved since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (2 Census block groups, population-weighted demographics): a population of 1,263. Why we surface this →
27.2%
Low-income
28.2%
People of color
0.0%
Under age 5
29.1%
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.