EPA TRI Facility · Chemicals
Hexion Inc.
Missoula, MT · Parent: Hexion Holdings Corp
- Total releases
- 89.5K lbs
- Chemicals reported
- 4
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Hexion Inc.: how the 89.5K lbs splits
89.5K lbs across all reported pathways
- Air Releases 89.5K lbs 100.0%
- Off-site Transfers 2 lbs <0.1%
- Land Disposal 0 lbs <0.1%
Hexion Inc.'s 89.5K lbs Form-R total is AIR - air releases is 100.0% of the bar. Next segment: off-site transfers at <0.1%. Leading chemical by pounds: Formaldehyde.
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.
LIGHT volume AIR pathway CARC-HEAVY
Hexion Inc. is an EPA Toxics Release Inventory reporter in Missoula, MT, in the chemicals sector. It reported 16.5K lbs of releases across 4 chemicals in 2023, and 89.5K lbs in total across its 2019-2023 reporting years. That ranks 4,827 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Montana's 67 reporting TRI sites, pounds #1 is not chemical-count #1. Hexion Inc. is pounds #24 and chemical-count #34 at 89.5K lbs. Montana Resources LLC leads reported pounds (215.2M lbs) at 12 chemicals (chemical-count #11). Phillips 66 Co Billings Refinery leads chemical count at 39 chemicals (465.0K lbs, pounds #16). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Phillips 66 Missoula Products Terminal; Roseburg Forest Products Co. - Missoula Particleboard; Jtl Group Missoula (dba Knife River-Missoula); Lubrizol. Similar-scale Chemicals peers outside Montana: Polynt Composites USA Inc. (formerly Pccr Usa); Poet Biorefining - Arthur LLC; Evonik Corp; Sherwin-Williams Co. Other Hexion Holdings Corp sites in this extract: Hexion Inc-Fayetteville Facility; Hexion Inc; Hexion Inc. - Hope Plant; Hexion Inc.. Largest disclosed chemicals by pounds: Formaldehyde; Methanol; Phenol; Formic acid.
Hexion Inc. stamps LIGHT volume with a dominant AIR pathway (100.0% air releases) across 4 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 89.5K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Polynt Composites USA Inc. (formerly Pccr Usa) and Poet Biorefining - Arthur LLC.
Hexion Inc. vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
90K lbs Top 19% higher than 81% 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
Hexion Inc.: carcinogen-lbs share on Form-R
Among the 3,917 Chemicals facilities in this database, Hexion Inc. reports the 970th-largest volume, placing it in the top 24.8% of its sector. Carcinogen-classified chemicals make up 52.5% of the reported pounds, not just of the chemical count. Scale peers outside Montana include Polynt Composites USA Inc. (formerly Pccr Usa) and Poet Biorefining - Arthur LLC.
Carcinogen-heavy means ≥50% of pounds (52.5% here), not of chemical count. EPA/IARC classification ≠ site risk.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Hexion Inc.'s total reported releases fell from 17.1 thousand lb in 2022 to 16.5 thousand lb in 2023, based on EPA TRI filings.
- Hexion Inc.'s air releases fell from 17.1 thousand lb in 2022 to 16.5 thousand lb in 2023, based on EPA TRI filings.
Hexion Inc. Form-R facts
Compare this facility
See how Hexion Inc. stacks up against nearby facilities and the typical reporter.
4.6× more than the comparison
60% 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 Hexion Inc. releases toxic chemicals into the environment. Total: 89.5K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 11% (18.4K lbs to 16.5K lbs).
Hexion Inc.: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Hexion Inc. year-over-year reported totals (decreased by 11% 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: Formaldehyde.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 18.4K lbs | 4 |
| 2020 | 18.4K lbs | 4 |
| 2021 | 19.2K lbs | 4 |
| 2022 | 17.1K lbs | 4 |
| 2023 | 16.5K lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 4 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Formaldehyde | 47.0K lbs | Carcinogen |
| Methanol | 39.5K lbs | - |
| Phenol | 3.0K lbs | - |
| Formic acid | 0 lbs | - |
Hexion Inc. · AIR-pathway site
Nearest TRI Facilities to Hexion Inc.
Closest other reporters in Montana - including Phillips 66 Missoula Products Terminal, Roseburg Forest Products Co. - Missoula Particleboard, Jtl Group Missoula (dba Knife River-Missoula), ordered by distance.
Showing 8 of 66 other reporting facilities in Montana.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Montana - e.g. Polynt Composites USA Inc. (formerly Pccr Usa), Poet Biorefining - Arthur LLC, Evonik Corp.
Compare beyond Montana
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Hexion Inc. on cumulative reported pounds (89.5K lbs) and distinct chemical count (4). Release-pound peers include L D McCauley LLC, Polynt Composites USA Inc. (formerly Pccr Usa), Mondi Jackson Llc.. 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.
- L D McCauley LLC Orchard Park, NY · Fabricated Metals 89.5K lbs reported
- Polynt Composites USA Inc. (formerly Pccr Usa) Carpentersville, IL · Chemicals 89.5K lbs reported
- Mondi Jackson Llc. Jackson, MO · Printing 89.5K lbs reported
- American Fuel Cells & Coated Fabrics (amfuel) Magnolia, AR · Plastics and Rubber 89.5K 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 Hexion Holdings Corp Facilities
Same-parent TRI sites ranked by reported releases - including Hexion Inc-Fayetteville Facility, Hexion Inc, Hexion Inc. - Hope Plant.
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 Formaldehyde, Methanol, Phenol, Formic acid; nearby reporters include Phillips 66 Missoula Products Terminal. Hexion Inc. stamps LIGHT volume · AIR pathway · CARC-HEAVY 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 Hexion Inc. TRI extract (LIGHT · AIR · CARC-HEAVY · lead Formaldehyde) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Hexion Inc. totals are self-reported EPCRA §313 estimates for Missoula, MT, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325211 · Chemicals. 14.9% of Missoula TRI pounds in this extract. Nearest ABS peer: L D McCauley LLC (Δ 27 lbs). Pounds ≠ exposure.
Hexion Inc. stamps LIGHT volume · AIR pathway · CARC-HEAVY · lead Formaldehyde. 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