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EPA TRI Chemical

Diaminotoluene (mixed Isomers)

CAS Number: 25376-45-8

Total releases
54.7K lbs
Number of facilities
16
Carcinogen
Yes
PBT substance
No
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Carcinogen

According to the EPA Toxics Release Inventory, Diaminotoluene (mixed Isomers) (CAS 25376-45-8) is disclosed by 16 Form R facilities totaling 54.7K lbs of reported releases. The TRI extract marks this chemical with a carcinogen classification flag. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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Diaminotoluene (mixed Isomers) (CAS 25376-45-8) 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.

The carcinogen flag above reflects an assessment from EPA, the International Agency for Research on Cancer, or the National Toxicology Program, not a TRI-specific determination. The largest individual disclosure in the current dataset comes from VICKERY ENVIRONMENTAL INC. in OH at 19.1K 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.

MIXED pathway mix

Diaminotoluene (mixed Isomers): how the 54.7K lbs splits

54.7K lbs across all reported pathways

  • Air Releases31.4K lbs57.5%
  • Land Disposal19.1K lbs34.9%
  • Off-site Transfers3.8K lbs6.9%
  • Water Discharges373 lbs0.7%

Diaminotoluene (mixed Isomers)'s 54.7K lbs Form-R total is MIXED, with air releases making up 57.5% of the bar. Next segment: land disposal at 34.9%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Diaminotoluene (mixed Isomers) releases across all reporting facilities decreased by 76% (18.2K lbs → 4.4K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Diaminotoluene (mixed Isomers) is concentrated: Ohio accounts for 35.0% of the reported total (2 facilities). Next: Texas.

  • Ohio 19.1K lbs
  • Texas 18.3K lbs
  • Louisiana 13.1K lbs
  • California 3.1K lbs
  • West Virginia 992 lbs
Industry Sources

Reporting for Diaminotoluene (mixed Isomers) is concentrated by industry: Chemicals facilities account for 45.1% of the reported total (9 facilities). Next: Hazardous Waste.

  • Chemicals 24.7K lbs
  • Hazardous Waste 19.1K lbs
  • Plastics and Rubber 10.9K lbs
  • Chemical Wholesalers 0 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Diaminotoluene (mixed Isomers). Up to 50 shown.

# Facility Release (lbs)
1 Vickery Environmental Inc.
19.1K lbs
2 Basf Corp
13.1K lbs
3 Future Pipe Industries
10.9K lbs
4 Ketjen Pasadena Plant
6.8K lbs
5 Evonik Corp
3.1K lbs
6 Covestro
992 lbs
7 Covestro LLC
712 lbs
8 Eco-Services Operations
1 lbs
9 Clean Harbors Deer Park LLC
1 lbs
10 Clean Harbors el Dorado LLC
0 lbs
11 Heritage Thermal Services
0 lbs
12 Clean Harbors Aragonite LLC
0 lbs
13 Dow Chemical Co Freeport Facility
0 lbs
14 Delta Baytown
0 lbs
15 Vanderbilt Chemicals Llc-Murray Div
0 lbs
16 Royce Associates LP Passaic Color Chemical Co Div
0 lbs

Frequently Asked Questions

What is Diaminotoluene (mixed Isomers) in the EPA TRI? ▼
Diaminotoluene (mixed Isomers) (CAS Number: 25376-45-8) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. The TRI extract marks it with a carcinogen classification flag based on EPA/IARC/NTP listings. 16 facilities in the United States report releasing this chemical to the EPA.
How much Diaminotoluene (mixed Isomers) is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 54.7K lbs of Diaminotoluene (mixed Isomers) releases to the EPA Toxic Release Inventory across 16 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 Diaminotoluene (mixed Isomers)? ▼
Diaminotoluene (mixed Isomers) carries a carcinogen classification flag in the TRI database (drawn from EPA, IARC, or NTP listings). 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 Diaminotoluene (mixed Isomers)? ▼
Vickery Environmental Inc. in OH reports the largest disclosed release of Diaminotoluene (mixed Isomers) in this dataset, at 19.1K lbs. Most reporting facilities for this chemical fall under chemicals. Release data is self-reported annually to the EPA under the TRI program. View the full list of 16 facilities on this page.
What is the CAS number for Diaminotoluene (mixed Isomers)? ▼
The CAS (Chemical Abstracts Service) Registry Number for Diaminotoluene (mixed Isomers) is 25376-45-8. 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

Carcinogen Classification: This chemical is classified as a known or suspected carcinogen by the EPA under the Toxic Release Inventory program. This classification is based on evaluations by agencies including the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP), and the EPA itself.

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.