EPA TRI Facility · Chemicals

Exxonmobil Mont Belvieu Plastics Plant

Baytown, TX · Parent: Exxon Mobil Corp

Total releases
767.3K lbs
Chemicals reported
5
Latest report
2023
Primary pathway
Air Releases

AIR Form-R mix

Exxonmobil Mont Belvieu Plastics Plant: how the 767.3K lbs splits

767.3K lbs across all reported pathways

  • Air Releases 716.8K lbs 93.4%
  • Off-site Transfers 49.3K lbs 6.4%
  • Water Discharges 1.2K lbs 0.2%
  • Land Disposal 0 lbs <0.1%

Exxonmobil Mont Belvieu Plastics Plant's 767.3K lbs Form-R total is AIR - air releases is 93.4% of the bar. Next segment: off-site transfers at 6.4%. Leading chemical by pounds: Ethylene.

MID volume AIR pathway CLEAN

Exxonmobil Mont Belvieu Plastics Plant is an EPA Toxics Release Inventory reporter in Baytown, TX, in the chemicals sector. It reported 145.7K lbs of releases across 4 chemicals in 2023, and 767.3K lbs in total across its 2019-2023 reporting years. That ranks 1,528 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Texas's 2,016 reporting TRI sites, pounds #1 is not chemical-count #1. Exxonmobil Mont Belvieu Plastics Plant is pounds #158 and chemical-count #613 at 767.3K lbs. Ascend Performance Materials-Chocolate Bayou Plant leads reported pounds (94.0M lbs) at 36 chemicals (chemical-count #35). Veolia Es Technical Solutions LLC Port Arthur Facility leads chemical count at 246 chemicals (1.5M lbs, pounds #112). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Chemicals Inc; Enterprise Products Operating LLC; Mb Frac I II & III; Mont Belvieu Fractionator. Similar-scale Chemicals peers outside Texas: Daikin America Inc; Celanese Emulsions Enoree Plant; M. Argueso & Co. Inc. (d.b.a. Paramelt); Arkema Inc. Other Exxon Mobil Corp sites in this extract: Exxonmobil Refining & Supply Baytown Refinery (part); Exxonmobil Baton Rouge Chemical Plant (part); Exxonmobil Baton Rouge Refinery (part); Exxonmobil Oil Corp Joliet Refinery. Largest disclosed chemicals by pounds: Ethylene; n-Hexane; Toluene; Zinc compounds.

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Exxonmobil Mont Belvieu Plastics Plant stamps MID volume with a dominant AIR pathway (93.4% air releases) across 5 chemicals. Cumulative Form-R extract: 767.3K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Daikin America Inc and Celanese Emulsions Enoree Plant.

#1,528 of 25,986 TRI facilities nationwide by total reported releases - among the top 5.9% of reporting sites by volume. Ranking reflects reported pounds, not toxicity or health risk.

Exxonmobil Mont Belvieu Plastics Plant vs. every reporting TRI facility

Cumulative reported release pounds, with this facility marked in the national distribution

767K lbs Top 6% higher than 94% of 25,986 reporting TRI facilities

This facility 0 lbs 20M+ lbs every reporting TRI facility, bucketed by value

Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.

Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year

Exxonmobil Mont Belvieu Plastics Plant: Ethylene-led volume

Among the 3,917 Chemicals facilities in this database, Exxonmobil Mont Belvieu Plastics Plant reports the 311th-largest volume, placing it in the top 7.9% of its sector. Its reported volume is concentrated rather than spread: Ethylene alone is 62.0% of the total. Scale peers outside Texas include Daikin America Inc and Celanese Emulsions Enoree Plant.

Concentrated means ≥60% of Exxonmobil Mont Belvieu Plastics Plant's pounds in one chemical - here Ethylene at 62.0%. Not a toxicity score.

Annual disclosure change

What changed: EPA TRI 2023 reporting year

2022 → 2023
  • Exxonmobil Mont Belvieu Plastics Plant's total reported releases rose from 141.6 thousand lb in 2022 to 145.7 thousand lb in 2023, based on EPA TRI filings.
  • Exxonmobil Mont Belvieu Plastics Plant's off-site transfers fell from 10.9 thousand lb in 2022 to 136 lb in 2023, based on EPA TRI filings.
  • Exxonmobil Mont Belvieu Plastics Plant's water releases fell from 322 lb in 2022 to 272 lb in 2023, based on EPA TRI filings.
  • Exxonmobil Mont Belvieu Plastics Plant's air releases rose from 130.4 thousand lb in 2022 to 145.3 thousand lb in 2023, based on EPA TRI filings.

Exxonmobil Mont Belvieu Plastics Plant Form-R facts

Sector
Chemicals
MID volume
767.3K lbs
AIR pathway
Air Releases
CLEAN chem count
5
Lead chemical
Ethylene

Compare this facility

See how Exxonmobil Mont Belvieu Plastics Plant stacks up against nearby facilities and the typical reporter.

Total reported releases
Exxonmobil Mont Belvieu Plastics Plant
767.3K lbs
Chemicals Inc
260 lbs

2949.1× more than the comparison

Chemicals reported
Exxonmobil Mont Belvieu Plastics Plant
5
Chemicals Inc
10

50% less than the comparison

Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.

How does this facility release toxic chemicals?

How Exxonmobil Mont Belvieu Plastics Plant releases toxic chemicals into the environment. Total: 767.3K lbs.

Air Releases 716.8K lbs (93.4%)
Off-site Transfers 49.3K lbs (6.4%)
Water Discharges 1.2K lbs (0.2%)
Land Disposal 0 lbs (<0.1%)
View 5-Year Emissions Trend →

Emissions Trend Summary

From 2019 to 2023, total releases increased by 4% (139.6K lbs to 145.7K lbs).

Exxonmobil Mont Belvieu Plastics Plant: annual Form-R pounds

MID site · AIR pathway · TRI years 2019–2023

million lbs

What this shows Exxonmobil Mont Belvieu Plastics Plant year-over-year reported totals (increased by 4% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Ethylene.

Source EPA Toxics Release Inventory (TRI)
Year Total Chemicals
2019 139.6K lbs 5
2020 177.5K lbs 5
2021 162.9K lbs 5
2022 141.6K lbs 4
2023 145.7K lbs 4

Chemical Releases

Aggregated across all reporting years (2019–2023). Sorted by total release volume.

Chemical Total Flags
Ethylene 475.8K lbs -
n-Hexane 215.1K lbs -
Toluene 38.8K lbs -
Zinc compounds 37.6K lbs -
Nonylphenol 1 lbs -

Exxonmobil Mont Belvieu Plastics Plant · AIR-pathway site

Baytown, TX
29.8727, -94.9201
County TRI context
Chambers · 9.4% of county pounds
Parent company
Exxon Mobil Corp

Compare beyond Texas

Nationwide peers by reported pounds & chemical count

Cross-state TRI reporters nearest Exxonmobil Mont Belvieu Plastics Plant on cumulative reported pounds (767.3K lbs) and distinct chemical count (5). Release-pound peers include U.S. Marine Corps Base Quantico (entire Facility), Oregon Tool Inc., Real Alloy Recycling LLC. Chemical-count peers include Abbvie Ltd, Lilly del Caribe Inc Carolin A, Baxter Healthcare of Puerto Rico LLC. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.

About TRI Data

Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.

On this page the largest disclosed chemicals include Ethylene, n-Hexane, Toluene, Zinc compounds; nearby reporters include Chemicals Inc. Exxonmobil Mont Belvieu Plastics Plant stamps MID volume · AIR pathway · CLEAN carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.

Use and verify this record

This Exxonmobil Mont Belvieu Plastics Plant TRI extract (MID · AIR · CLEAN · lead Ethylene) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.

Exxonmobil Mont Belvieu Plastics Plant totals are self-reported EPCRA §313 estimates for Baytown, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325211 · Chemicals. 9.4% of Chambers TRI pounds in this extract. Nearest ABS peer: U.S. Marine Corps Base Quantico (entire Facility) (Δ 533 lbs). Pounds ≠ exposure.

Exxonmobil Mont Belvieu Plastics Plant stamps MID volume · AIR pathway · CLEAN · lead Ethylene. PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.

All federal data sources used on this page
  • EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
  • EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
  • EPA Facility Registry Service - facility location and identity. epa.gov
  • EPA ECHO - regulatory and compliance context. epa.gov
  • EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov