PlainEnviro

EPA TRI Chemical

Ethylene Thiourea

CAS Number: 96-45-7

Total releases
209.4K lbs
Number of facilities
17
Carcinogen
Yes
PBT substance
No
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Carcinogen

According to the EPA Toxics Release Inventory, Ethylene Thiourea (CAS 96-45-7) is disclosed by 17 Form R facilities totaling 209.4K 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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Ethylene Thiourea (CAS 96-45-7) 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 COOPER STANDARD AUTOMOTIVE in OH at 164.0K 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

Ethylene Thiourea: how the 209.4K lbs splits

209.4K lbs across all reported pathways

  • Off-site Transfers174.3K lbs83.2%
  • Land Disposal31.4K lbs15.0%
  • Air Releases3.7K lbs1.8%

Ethylene Thiourea's 209.4K lbs Form-R total is OFFSITE, with off-site transfers making up 83.2% of the bar. Next segment: land disposal at 15.0%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Ethylene Thiourea releases across all reporting facilities increased by 8988% (283 lbs → 25.8K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Ethylene Thiourea is highly concentrated: Ohio accounts for 78.4% of the reported total (7 facilities). Next: Texas.

  • Ohio 164.2K lbs
  • Texas 31.4K lbs
  • Mississippi 8.8K lbs
  • Missouri 4.2K lbs
  • Indiana 830 lbs
Industry Sources

Reporting for Ethylene Thiourea is highly concentrated by industry: Plastics and Rubber facilities account for 84.9% of the reported total (8 facilities). Next: Hazardous Waste.

  • Plastics and Rubber 177.8K lbs
  • Hazardous Waste 31.4K lbs
  • Chemicals 227 lbs
  • Chemical Wholesalers 0 lbs

Which facilities release the most of this chemical?

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

# Facility Release (lbs)
1 Cooper Standard Automotive
164.0K lbs
2 US Ecology Texas Inc
31.4K lbs
3 Evercompounds LLC
8.8K lbs
4 High Performance Hose Facility
4.1K lbs
5 Nishikawa Cooper LLC
830 lbs
6 Chem Technologies Ltd.
220 lbs
7 Parker Hannifin Corp
112 lbs
8 Veolia Es Technical Solutions LLC Port Arthur Facility
9 lbs
9 Flow Polymers LLC
7 lbs
10 Clean Harbors Deer Park LLC
1 lbs
11 Heritage Thermal Services
0 lbs
12 Arcwood Environmental - Orange LLC
0 lbs
13 Parker Hannifin Accumulator & Cooler Div
0 lbs
14 Gowan Milling LLC
0 lbs
15 Akrochem Corp
0 lbs
16 Lanxess Corp Plant 2
0 lbs
17 Lanxess Corp Plant 1
0 lbs

Frequently Asked Questions

What is Ethylene Thiourea in the EPA TRI? ▼
Ethylene Thiourea (CAS Number: 96-45-7) 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. 17 facilities in the United States report releasing this chemical to the EPA.
How much Ethylene Thiourea is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 209.4K lbs of Ethylene Thiourea releases to the EPA Toxic Release Inventory across 17 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 Ethylene Thiourea? ▼
Ethylene Thiourea 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 Ethylene Thiourea? ▼
Cooper Standard Automotive in OH reports the largest disclosed release of Ethylene Thiourea in this dataset, at 164.0K 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 17 facilities on this page.
What is the CAS number for Ethylene Thiourea? ▼
The CAS (Chemical Abstracts Service) Registry Number for Ethylene Thiourea is 96-45-7. 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

Understanding TRI Data
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Which facilities release the most toxics
How to Check Environmental Quality
Step-by-step guide to checking your local environment

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.