PlainEnviro

EPA TRI Chemical

Urethane

CAS Number: 51-79-6

Total releases
898.2K lbs
Number of facilities
12
Carcinogen
Yes
PBT substance
No
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Carcinogen

According to the EPA Toxics Release Inventory, Urethane (CAS 51-79-6) is disclosed by 12 Form R facilities totaling 898.2K 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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Urethane (CAS 51-79-6) 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 TRADEBE TREATMENT & RECYCLING LLC in IN at 767.0K 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

Urethane: how the 898.2K lbs splits

898.2K lbs across all reported pathways

  • Off-site Transfers795.8K lbs88.6%
  • Land Disposal101.1K lbs11.3%
  • Air Releases1.3K lbs0.1%

Urethane's 898.2K lbs Form-R total is OFFSITE, with off-site transfers making up 88.6% of the bar. Next segment: land disposal at 11.3%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Urethane releases across all reporting facilities decreased by 80% (409.1K lbs → 82.6K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Urethane is highly concentrated: Indiana accounts for 85.4% of the reported total (1 facility). Next: Alabama.

  • Indiana 767.0K lbs
  • Alabama 83.2K lbs
  • New York 15.7K lbs
  • Ohio 15.5K lbs
  • Tennessee 14.3K lbs
Industry Sources

Reporting for Urethane is highly concentrated by industry: Hazardous Waste facilities account for 100.0% of the reported total (12 facilities).

  • Hazardous Waste 898.2K lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Urethane. Up to 50 shown.

# Facility Release (lbs)
1 Tradebe Treatment & Recycling LLC
767.0K lbs
2 Chemical Waste Management
83.2K lbs
3 Allied Waste Niagara Falls Landfill
29.2K lbs
4 Ross Incineration Services Inc
15.5K lbs
5 Tradebe Treatment & Recycling of Tn
14.3K lbs
6 Elemental Environmental Solutions LLC
2.2K lbs
7 Clean Harbors Environmental Services Inc
235 lbs
8 Veolia Es Technical Solutions LLC Port Arthur Facility
25 lbs
9 Clean Harbors Aragonite LLC
14 lbs
10 Clean Harbors Deer Park LLC
1 lbs
11 Clean Harbors el Dorado LLC
1 lbs
12 Heritage Thermal Services
0 lbs

Frequently Asked Questions

What is Urethane in the EPA TRI? ▼
Urethane (CAS Number: 51-79-6) 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. 12 facilities in the United States report releasing this chemical to the EPA.
How much Urethane is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 898.2K lbs of Urethane releases to the EPA Toxic Release Inventory across 12 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 Urethane? ▼
Urethane 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 Urethane? ▼
Tradebe Treatment & Recycling LLC in IN reports the largest disclosed release of Urethane in this dataset, at 767.0K lbs. Most reporting facilities for this chemical fall under hazardous waste. Release data is self-reported annually to the EPA under the TRI program. View the full list of 12 facilities on this page.
What is the CAS number for Urethane? ▼
The CAS (Chemical Abstracts Service) Registry Number for Urethane is 51-79-6. 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.

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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.