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EPA TRI Chemical

1,2-Dibromoethane

CAS Number: 106-93-4

Total releases
3.6K lbs
Number of facilities
10
Carcinogen
Yes
PBT substance
No
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Carcinogen

According to the EPA Toxics Release Inventory, 1,2-Dibromoethane (CAS 106-93-4) is disclosed by 10 Form R facilities totaling 3.6K 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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1,2-Dibromoethane (CAS 106-93-4) 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 EXXONMOBIL BATON ROUGE REFINERY (PART) in LA at 2.6K 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.

AIR pathway mix

1,2-Dibromoethane: how the 3.6K lbs splits

3.6K lbs across all reported pathways

  • Air Releases2.9K lbs81.4%
  • Off-site Transfers354 lbs9.9%
  • Water Discharges310 lbs8.7%
  • Land Disposal0 lbs<0.1%

1,2-Dibromoethane's 3.6K lbs Form-R total is AIR, with air releases making up 81.4% of the bar. Next segment: off-site transfers at 9.9%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual 1,2-Dibromoethane releases across all reporting facilities decreased by 17% (824 lbs → 684 lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for 1,2-Dibromoethane is highly concentrated: Louisiana accounts for 73.9% of the reported total (2 facilities). Next: Mississippi.

  • Louisiana 2.6K lbs
  • Mississippi 787 lbs
  • Texas 52 lbs
  • California 50 lbs
  • Minnesota 28 lbs
Industry Sources

Reporting for 1,2-Dibromoethane is highly concentrated by industry: Petroleum facilities account for 97.1% of the reported total (6 facilities). Next: Chemicals.

  • Petroleum 3.5K lbs
  • Chemicals 94 lbs
  • Nonmetallic Mineral Product 5 lbs
  • Hazardous Waste 4 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of 1,2-Dibromoethane. Up to 50 shown.

# Facility Release (lbs)
1 Exxonmobil Baton Rouge Refinery (part)
2.6K lbs
2 Chevron Products Co Pascagoula Refinery
787 lbs
3 Ethyl Corp
52 lbs
4 Chevron Products Co Richmond Refinery
50 lbs
5 Exxonmobil Baton Rouge Chemical Plant (part)
42 lbs
6 Flint Hills Resources Pine Bend LLC
28 lbs
7 Phillips 66 Co Billings Refinery
7 lbs
8 Norlite LLC
5 lbs
9 Heritage Thermal Services
4 lbs
10 Delek Tyler Refinery
0 lbs

Frequently Asked Questions

What is 1,2-Dibromoethane in the EPA TRI? ▼
1,2-Dibromoethane (CAS Number: 106-93-4) 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. 10 facilities in the United States report releasing this chemical to the EPA.
How much 1,2-Dibromoethane is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 3.6K lbs of 1,2-Dibromoethane releases to the EPA Toxic Release Inventory across 10 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 1,2-Dibromoethane? ▼
1,2-Dibromoethane 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 1,2-Dibromoethane? ▼
Exxonmobil Baton Rouge Refinery (part) in LA reports the largest disclosed release of 1,2-Dibromoethane in this dataset, at 2.6K lbs. Most reporting facilities for this chemical fall under petroleum. Release data is self-reported annually to the EPA under the TRI program. View the full list of 10 facilities on this page.
What is the CAS number for 1,2-Dibromoethane? ▼
The CAS (Chemical Abstracts Service) Registry Number for 1,2-Dibromoethane is 106-93-4. 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.