Dow Chemical Co Freeport Facility – Emissions Trend

Freeport, TX · 2019–2023 · Parent: The Dow Chemical Co

This page assembles 5 consecutive years of EPA Toxics Release Inventory Form R filings for Dow Chemical Co Freeport Facility, spanning 2019–2023. Each annual total aggregates on-site air emissions, surface-water discharges, land disposal, and off-site transfers reported by the facility under EPCRA Section 313, which requires disclosure whenever a listed chemical is manufactured, processed, or otherwise used above threshold quantities.

Reported releases opened at 888.6K in 2019 and closed at 801.6K in 2023 – a decrease of 9.8% over the window. The chart below stacks the four TRI release media (air, water, land, off-site) and overlays the yearly total. The top contributor by cumulative mass is Ethylene at 2.0M, followed by Ammonia at 735.4K.

Because TRI figures are estimated, not metered, year-over-year deltas can reflect methodology revisions, ownership changes, or shifts in what a facility classifies as reportable, not only physical emission changes. Treat the trajectory as a disclosure record, and cross-reference with the EPA Enforcement and Compliance History Online (ECHO) system for the fuller regulatory picture on this chemicals facility.

Overall Trend
↓ Decreasing (-9.8%)
2019 Total
888.6K lbs
2023 Total
801.6K lbs

Annual disclosure change

What changed: EPA TRI 2023 reporting year

2022 → 2023
  • Dow Chemical Co Freeport Facility's total reported releases fell from 912.0 thousand lb in 2022 to 801.6 thousand lb in 2023, based on EPA TRI filings.
  • Dow Chemical Co Freeport Facility's land releases rose from 44.2 thousand lb in 2022 to 86.1 thousand lb in 2023, based on EPA TRI filings.
  • Dow Chemical Co Freeport Facility's off-site transfers fell from 11.6 thousand lb in 2022 to 6.9 thousand lb in 2023, based on EPA TRI filings.
  • Dow Chemical Co Freeport Facility's water releases fell from 106.6 thousand lb in 2022 to 84.8 thousand lb in 2023, based on EPA TRI filings.

Total Releases by Category

Air
Water
Land
Offsite Transfer
0231.5K463.1K694.6K926.2K1.2M 20192020202120222023 Pounds Released

Year-over-Year Comparison

Year Total Chemicals YoY Change
2019 888.6K lbs 93 -
2020 935.6K lbs 98 +5.3%
2021 1.2M lbs 88 +23.7%
2022 912.0K lbs 91 -21.2%
2023 801.6K lbs 93 -12.1%

Top Chemicals by Year

Chemical 20192020202120222023 Total
Ethylene 363.1K 493.6K 483.8K 346.4K 271.9K 2.0M
Ammonia 126.8K 144.2K 164.8K 151.4K 148.1K 735.4K
Propylene 85.5K 68.4K 89.7K 102.6K 75.5K 421.8K
Zinc compounds 30.0K 16.4K 94.2K 67.3K 79.0K 286.8K
Benzene 38.2K 27.1K 55.7K 35.8K 39.2K 196.0K
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 24.8K 23.4K 41.8K 38.3K 37.0K 165.3K
Toluene 25.5K 11.7K 17.9K 33.7K 10.3K 99.1K
Propylene oxide 45.5K 13.5K 9.9K 9.9K 16.1K 94.9K
Glycidol 21.6K 16.8K 19.8K 5 8 58.2K
Formaldehyde 11.6K 11.4K 11.3K 11.4K 10.9K 56.6K
Copper And Copper Compounds - - 38.0K 5.5K 7.8K 51.3K
Sodium nitrite 9.7K 4.9K 4.5K 5.2K 18.1K 42.4K
1,3-Butadiene 5.1K 7.2K 9.7K 10.5K 5.9K 38.4K
Certain glycol ethers 5.6K 9.8K 15.1K 6.1K 821 37.5K
Epichlorohydrin 9.0K 8.0K 8.9K 3.5K 6.3K 35.6K

About This Data

Trend data is sourced from the EPA Toxic Release Inventory (TRI). Facilities report annually. Release quantities are self-reported estimates. Year-over-year changes may reflect changes in production, pollution control measures, reporting methodology, or chemical thresholds.

A decrease in reported releases does not necessarily indicate improved environmental performance, as it may reflect production cutbacks, facility closures, or changes in reporting requirements. Similarly, increases may reflect expanded production rather than degraded environmental practices.

Frequently Asked Questions

Is Dow Chemical Co Freeport Facility getting cleaner or dirtier?
Based on EPA TRI data from 2019–2023, Dow Chemical Co Freeport Facility's total toxic releases have decreased by approximately 10%.
What time period does this trend data cover?
This page shows 5 years of EPA Toxic Release Inventory data from 2019–2023. Release quantities are self-reported estimates filed annually by the facility.