EPA TRI Facility · Chemicals
Zeon Chemicals LP Mississippi Plant
Hattiesburg, MS · Parent: Zeon Chemicals LP
- Total releases
- 929.2K lbs
- Chemicals reported
- 4
- Carcinogens
- 2
- Primary pathway
- Air Releases
AIR Form-R mix
Zeon Chemicals LP Mississippi Plant: how the 929.2K lbs splits
929.2K lbs across all reported pathways
- Air Releases 916.4K lbs 98.6%
- Off-site Transfers 12.8K lbs 1.4%
Zeon Chemicals LP Mississippi Plant's 929.2K lbs Form-R total is AIR - air releases is 98.6% of the bar. Next segment: off-site transfers at 1.4%. Leading chemical by pounds: Toluene.
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
MID volume AIR pathway TRACE-CARC
Zeon Chemicals LP Mississippi Plant is an EPA Toxics Release Inventory reporter in Hattiesburg, MS, in the chemicals sector. It reported 200.3K lbs of releases across 4 chemicals in 2023, and 929.2K lbs in total across its 2019-2023 reporting years. That ranks 1,367 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Mississippi's 328 reporting TRI sites, pounds #1 is not chemical-count #1. Zeon Chemicals LP Mississippi Plant is pounds #30 and chemical-count #88 at 929.2K lbs. Tronox LLC leads reported pounds (64.0M lbs) at 17 chemicals (chemical-count #12). Chevron Products Co Pascagoula Refinery leads chemical count at 46 chemicals (7.4M lbs, pounds #9). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Pine Belt Ready Mix Plant 84; Mmc Materials Inc - Hattiesburg; C L Dews & Sons Foundry & Machinery Co Inc; Mar-Jac Poultry Ms LLC. Similar-scale Chemicals peers outside Mississippi: Cos-Mar Co; Am Stabilizers Corp; Slocum Adhesives Corp; Invista Longview. Other Zeon Chemicals LP sites in this extract: Zeon Chemicals LP. Largest disclosed chemicals by pounds: Toluene; Dicyclopentadiene; Epichlorohydrin; Ethylene oxide.
Zeon Chemicals LP Mississippi Plant stamps MID volume with a dominant AIR pathway (98.6% air releases) across 4 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 929.2K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Cos-Mar Co and Am Stabilizers Corp.
Zeon Chemicals LP Mississippi Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
929K lbs Top 5% higher than 95% of 25,986 reporting TRI facilities
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
Zeon Chemicals LP Mississippi Plant inside Forrest's TRI pounds
Among the 3,917 Chemicals facilities in this database, Zeon Chemicals LP Mississippi Plant reports the 274th-largest volume, placing it in the top 7% of its sector. This one site accounts for 53.4% of every pound reported in Forrest. Its reported volume is concentrated rather than spread: Toluene alone is 98.4% of the total. Scale peers outside Mississippi include Cos-Mar Co and Am Stabilizers Corp.
County-dominant here means ≥25% of Forrest's reported pounds (1.7M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Zeon Chemicals LP Mississippi Plant's total reported releases fell from 238.2 thousand lb in 2022 to 200.3 thousand lb in 2023, based on EPA TRI filings.
- Zeon Chemicals LP Mississippi Plant's off-site transfers fell from 12.4 thousand lb in 2022 to 450 lb in 2023, based on EPA TRI filings.
- Zeon Chemicals LP Mississippi Plant's air releases fell from 225.8 thousand lb in 2022 to 199.8 thousand lb in 2023, based on EPA TRI filings.
Zeon Chemicals LP Mississippi Plant Form-R facts
Compare this facility
See how Zeon Chemicals LP Mississippi Plant stacks up against nearby facilities and the typical reporter.
4000796.9× more than the comparison
4.0× more 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 Zeon Chemicals LP Mississippi Plant releases toxic chemicals into the environment. Total: 929.2K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 44% (138.6K lbs to 200.3K lbs).
Zeon Chemicals LP Mississippi Plant: annual Form-R pounds
MID site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Zeon Chemicals LP Mississippi Plant year-over-year reported totals (increased by 44% 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: Toluene.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 138.6K lbs | 4 |
| 2020 | 148.3K lbs | 4 |
| 2021 | 203.8K lbs | 4 |
| 2022 | 238.2K lbs | 4 |
| 2023 | 200.3K lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 4 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Toluene | 914.7K lbs | - |
| Dicyclopentadiene | 12.8K lbs | - |
| Epichlorohydrin | 1.6K lbs | Carcinogen |
| Ethylene oxide | 26 lbs | Carcinogen |
Zeon Chemicals LP Mississippi Plant · AIR-pathway site
Nearest TRI Facilities to Zeon Chemicals LP Mississippi Plant
Closest other reporters in Mississippi - including Pine Belt Ready Mix Plant 84, Mmc Materials Inc - Hattiesburg, C L Dews & Sons Foundry & Machinery Co Inc, ordered by distance.
Showing 8 of 327 other reporting facilities in Mississippi.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Mississippi - e.g. Cos-Mar Co, Am Stabilizers Corp, Slocum Adhesives Corp.
Compare beyond Mississippi
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Zeon Chemicals LP Mississippi Plant on cumulative reported pounds (929.2K lbs) and distinct chemical count (4). Release-pound peers include Ash Grove Cement Co, South Holland Metal Finishing, Regal Marine Industries Inc.. Chemical-count peers include Hamilton Sundstrand de Puerto Rico Inc., Abb Installation Products Caribe LLC, Solenis LLC. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
- Ash Grove Cement Co Chanute, KS · Nonmetallic Mineral Product 929.5K lbs reported
- South Holland Metal Finishing Monee, IL · Fabricated Metals 928.6K lbs reported
- Regal Marine Industries Inc. Orlando, FL · Transportation Equipment 930.9K lbs reported
- Cos-Mar Co Carville, LA · Chemicals 927.1K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Hamilton Sundstrand de Puerto Rico Inc. Santa Isabel, PR · Transportation Equipment 4 chemicals
- Abb Installation Products Caribe LLC Vega Baja, PR · Electrical Equipment 4 chemicals
- Solenis LLC Chicopee, MA · Chemicals 4 chemicals
- Adhesive Applications Inc. - O'Neill St Easthampton Easthampton, MA · Miscellaneous Manufacturing 4 chemicals
Other Zeon Chemicals LP Facilities
Same-parent TRI sites ranked by reported releases - including Zeon Chemicals LP.
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 Toluene, Dicyclopentadiene, Epichlorohydrin, Ethylene oxide; nearby reporters include Pine Belt Ready Mix Plant 84. Zeon Chemicals LP Mississippi Plant stamps MID volume · AIR pathway · TRACE-CARC 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 Zeon Chemicals LP Mississippi Plant TRI extract (MID · AIR · TRACE-CARC · lead Toluene) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Zeon Chemicals LP Mississippi Plant totals are self-reported EPCRA §313 estimates for Hattiesburg, MS, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325212 · Chemicals. 53.4% of Forrest TRI pounds in this extract. Nearest ABS peer: Ash Grove Cement Co (Δ 321 lbs). Pounds ≠ exposure.
Zeon Chemicals LP Mississippi Plant stamps MID volume · AIR pathway · TRACE-CARC · lead Toluene. 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