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EPA TRI Chemical

Bromochlorodifluoromethane (halon 1211)

CAS Number: 353-59-3

Total releases
11.4K lbs
Number of facilities
6
Carcinogen
No
PBT substance
No
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According to the EPA Toxics Release Inventory, Bromochlorodifluoromethane (halon 1211) (CAS 353-59-3) is disclosed by 6 Form R facilities totaling 11.4K lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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Bromochlorodifluoromethane (halon 1211) (CAS 353-59-3) 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 KIDDE AEROSPACE & DEFENSE in NC at 4.9K 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

Bromochlorodifluoromethane (halon 1211): how the 11.4K lbs splits

11.4K lbs across all reported pathways

  • Air Releases11.4K lbs100.0%

Bromochlorodifluoromethane (halon 1211)'s 11.4K lbs Form-R total is AIR, with air releases making up 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Bromochlorodifluoromethane (halon 1211) releases across all reporting facilities decreased by 28% (2.5K lbs → 1.8K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Bromochlorodifluoromethane (halon 1211) is concentrated: North Carolina accounts for 43.0% of the reported total (1 facility). Next: Ohio.

  • North Carolina 4.9K lbs
  • Ohio 4.0K lbs
  • Virginia 2.0K lbs
  • New Jersey 505 lbs
  • Georgia 0 lbs
Industry Sources

Reporting for Bromochlorodifluoromethane (halon 1211) is concentrated by industry: Transportation Equipment facilities account for 43.0% of the reported total (1 facility). Next: Chemicals.

  • Transportation Equipment 4.9K lbs
  • Chemicals 4.5K lbs
  • Other 2.0K lbs
  • Miscellaneous Manufacturing 0 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Bromochlorodifluoromethane (halon 1211). Up to 50 shown.

# Facility Release (lbs)
1 Kidde Aerospace & Defense
4.9K lbs
2 A-Gas US Inc
4.0K lbs
3 US Defense Logistics Agency Defense Supply Center Richmond
2.5K lbs
4 Wesco Hmb Inc.
745 lbs
5 Amerex Corp
0 lbs
6 U.S. Dod Usaf Robins Afb
0 lbs

Frequently Asked Questions

What is Bromochlorodifluoromethane (halon 1211) in the EPA TRI? ▼
Bromochlorodifluoromethane (halon 1211) (CAS Number: 353-59-3) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 6 facilities in the United States report releasing this chemical to the EPA.
How much Bromochlorodifluoromethane (halon 1211) is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 11.4K lbs of Bromochlorodifluoromethane (halon 1211) releases to the EPA Toxic Release Inventory across 6 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 Bromochlorodifluoromethane (halon 1211)? ▼
Bromochlorodifluoromethane (halon 1211) 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 Bromochlorodifluoromethane (halon 1211)? ▼
Kidde Aerospace & Defense in NC reports the largest disclosed release of Bromochlorodifluoromethane (halon 1211) in this dataset, at 4.9K lbs. Most reporting facilities for this chemical fall under transportation equipment. Release data is self-reported annually to the EPA under the TRI program. View the full list of 6 facilities on this page.
What is the CAS number for Bromochlorodifluoromethane (halon 1211)? ▼
The CAS (Chemical Abstracts Service) Registry Number for Bromochlorodifluoromethane (halon 1211) is 353-59-3. 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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How to Check Environmental Quality
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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.