PlainEnviro

EPA TRI Chemical

1,3-Phenylenediamine

CAS Number: 108-45-2

Total releases
259.8K lbs
Number of facilities
31
Carcinogen
No
PBT substance
No
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According to the EPA Toxics Release Inventory, 1,3-Phenylenediamine (CAS 108-45-2) is disclosed by 31 Form R facilities totaling 259.8K lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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1,3-Phenylenediamine (CAS 108-45-2) is a chemical tracked by the EPA Toxics Release Inventory (TRI) program under Section 313 of the Emergency Planning and Community Right-to-Know Act. The TRI requires industrial facilities above specified threshold quantities to disclose annual manufacturing, processing, and otherwise-used volumes, along with quantities released to air, water, land, and off-site transfers.

A carcinogen flag, when present on other chemicals in this database, reflects an assessment from EPA, IARC, or the National Toxicology Program rather than a TRI-specific determination. The largest individual disclosure in the current dataset comes from FILMTEC CORP in MN at 102.5K lbs.

TRI volumes are self-reported estimates, not measured stack emissions, and each pound counts equally regardless of chemical toxicity, so total pounds should not be equated with total risk. Inclusion of a chemical or facility in the TRI does not itself establish a health hazard; it documents the public right-to-know record. Consult EPA's IRIS (Integrated Risk Information System) and the Agency for Toxic Substances and Disease Registry for health-effect summaries.

OFFSITE pathway mix

1,3-Phenylenediamine: how the 259.8K lbs splits

259.8K lbs across all reported pathways

  • Off-site Transfers250.7K lbs96.5%
  • Air Releases9.0K lbs3.5%

1,3-Phenylenediamine's 259.8K lbs Form-R total is OFFSITE, with off-site transfers making up 96.5% of the bar. Next segment: air releases at 3.5%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual 1,3-Phenylenediamine releases across all reporting facilities increased by 261% (35.8K lbs → 129.1K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for 1,3-Phenylenediamine is highly concentrated: Minnesota accounts for 69.7% of the reported total (3 facilities). Next: Michigan.

  • Minnesota 181.0K lbs
  • Michigan 40.5K lbs
  • Texas 17.7K lbs
  • South Carolina 10.2K lbs
  • Indiana 5.5K lbs
Industry Sources

Reporting for 1,3-Phenylenediamine is concentrated by industry: Plastics and Rubber facilities account for 39.5% of the reported total (2 facilities). Next: Machinery.

  • Plastics and Rubber 102.5K lbs
  • Machinery 96.2K lbs
  • Other 40.5K lbs
  • Chemicals 20.6K lbs
  • Hazardous Waste 6 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of 1,3-Phenylenediamine. Up to 50 shown.

# Facility Release (lbs)
1 Filmtec Corp
102.5K lbs
2 Veolia Wts Solutions USA Inc.
78.5K lbs
3 Eq Detroit Inc
40.5K lbs
4 Duoline Technologies Inc.
17.7K lbs
5 Weylchem US Inc.
9.1K lbs
6 Sabic Innovative Plastics Mt. Vernon LLC
5.5K lbs
7 Evonik Corp
2.3K lbs
8 Proviron Inc
2.3K lbs
9 Solvay Specialty Polymers USA LLC
1.0K lbs
10 Carlisle Polyurethane Systems
250 lbs
11 Chromascape
55 lbs
12 Piedmont Chemical Industries I LLC
24 lbs
13 Dow Chemical Co Freeport Facility
22 lbs
14 Carlisle Polyurethane Systems
15 lbs
15 Clean Harbors Deer Park LLC
4 lbs
16 Clean Harbors el Dorado LLC
2 lbs
17 3M Chemical Operations' Cottage Grove Facility
0 lbs
18 Cymer LLC Dayton
0 lbs
19 Ross Incineration Services Inc
0 lbs
20 The Dow Chemical Co - Beaumont Aniline
0 lbs
21 Dow Sabine River Operations
0 lbs
22 Momentive Performance Materials Inc.
0 lbs
23 Deer Park_tx (roh)
0 lbs
24 Delta Baytown
0 lbs
25 Covestro LLC
0 lbs
26 E R Carpenter LP
0 lbs
27 Polycoat Products LLC
0 lbs
28 Rubicon LLC
0 lbs
29 Carpenter Co Elkhart Div
0 lbs
30 Dupont Specialty Products USA LLC - Spruance Plant
0 lbs
31 Royce Associates LP Passaic Color Chemical Co Div
0 lbs

Frequently Asked Questions

What is 1,3-Phenylenediamine in the EPA TRI? ▼
1,3-Phenylenediamine (CAS Number: 108-45-2) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 31 facilities in the United States report releasing this chemical to the EPA.
How much 1,3-Phenylenediamine is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 259.8K lbs of 1,3-Phenylenediamine releases to the EPA Toxic Release Inventory across 31 facilities. Release quantities are self-reported estimates covering air, water, land, and off-site transfers. They are disclosure totals, not toxicity-weighted harm scores.
How does EPA TRI classify 1,3-Phenylenediamine? ▼
1,3-Phenylenediamine is not marked as a carcinogen in the TRI classification set. TRI classification flags document inventory listing status; they are not a site-specific exposure or health diagnosis. For health-effect summaries see EPA IRIS and ATSDR toxicological profiles.
Which facilities disclose the most 1,3-Phenylenediamine? ▼
Filmtec Corp in MN reports the largest disclosed release of 1,3-Phenylenediamine in this dataset, at 102.5K lbs. Most reporting facilities for this chemical fall under plastics and rubber. Release data is self-reported annually to the EPA under the TRI program. View the full list of 31 facilities on this page.
What is the CAS number for 1,3-Phenylenediamine? ▼
The CAS (Chemical Abstracts Service) Registry Number for 1,3-Phenylenediamine is 108-45-2. CAS numbers are unique numerical identifiers assigned to every chemical substance described in the open scientific literature. This identifier is used to search scientific databases and regulatory filings.

Related Guides

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Health Information

Data comes from the EPA Toxic Release Inventory (TRI) program. Release quantities are self-reported by facilities and may represent estimates. The total shown aggregates reports across all facilities and reporting years.

PlainEnviro presents this data without advocacy framing. The presence of a chemical in the TRI database does not by itself indicate a health risk at current exposure levels. For health-related questions about specific chemical exposures, consult your local health agency or a toxicologist.

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Data sourced from the U.S. Environmental Protection Agency (EPA). See our methodology for details. Retrieved and formatted by PlainEnviro

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Toxic Release Inventory (TRI). Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.