TRI facility · TRI 2024 reporting year

The Dow Chemical CO - Louisiana Operations

Total reported releases 2.0M lb fell modestly year over year (-6%). Total releases concentrations have fallen 26% since 2010.

21255 LA HWY 1 S, Plaquemine, Louisiana · 325199 · Chemicals · operated by Dow INC

TOTAL RELEASES · 20102024
Bar chart of annual values from 2010 to 2024, in lb. Most recent year (2024): 2.0M.3.1M'10'12'14'16'18'20'22'242.0M
Anomaly engine

Notable Signals

YEAR-OVER-YEAR SURGE · RELEASE SHIFT

Ethylene glycol

Ethylene glycol releases at The Dow Chemical CO - Louisiana Operations rose from 5k lb to 54k lb (11.3×) between 2023 and 2024.

YEAR-OVER-YEAR DROP · RELEASE SHIFT

Chloroethane

Chloroethane releases at The Dow Chemical CO - Louisiana Operations fell from 60k lb to 113 lb (100% lower) between 2023 and 2024.

YEAR-OVER-YEAR DROP · RELEASE SHIFT

Asbestos (friable)

Asbestos (friable) releases at The Dow Chemical CO - Louisiana Operations fell from 117k lb to 44k lb (63% lower) between 2023 and 2024.

LONG-ARC IMPROVEMENT · LONG-ARC SHIFT

Cyclohexane

Cyclohexane at The Dow Chemical CO - Louisiana Operations have more than three-quarters since 2010 (through 2024).

Showing the 4 most editorially weighted signals out of 5. Lower-severity signals fold into the chemical breakdown and history charts below.

Chemicals reported · most recent year

What This Facility Releases

GENERALCAS 7664-41-7

Ammonia

1.2M lb · +2% YoY

Ammonia concentrations are roughly unchanged from 2010.

GENERALCAS 74-85-1

Ethylene

535k lb · -14% YoY

Ethylene concentrations are up 64% since 2010.

RESPIRATORYCAS 107-21-1

Ethylene glycol

54k lb · +1027% YoY

Ethylene glycol concentrations have more than doubled since 2010.

GENERALCAS 115-07-1

Propylene

53k lb · +18% YoY

Propylene concentrations are up 43% since 2010.

CARCINOGENCAS 1332-21-4

Asbestos (friable)

44k lb · -63% YoY

Asbestos (friable) concentrations have more than halved since 2010.

GENERALCAS N511

Nitrate compounds (water dissociable; reportable only when in aqueous solution)

33k lb · +10% YoY

Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations are roughly unchanged from 2010.

RESPIRATORYCAS 67-56-1

Methanol

25k lb · +4014% YoY

Methanol concentrations are up 93% since 2010.

CARCINOGENCAS 71-43-2

Benzene

11k lb · +20% YoY

Benzene 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 (3 Census block groups, population-weighted demographics): a population of 7,637. Why we surface this →

POPULATION SHARE
17.8%

Low-income

POPULATION SHARE
46.7%

People of color

POPULATION SHARE
7.9%

Under age 5

POPULATION SHARE
11.4%

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.