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EPA TRI Chemical

2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124)

CAS Number: 2837-89-0

Total releases
354.8K lbs
Number of facilities
9
Carcinogen
No
PBT substance
No
Verify at EPA TRI →

According to the EPA Toxics Release Inventory, 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) (CAS 2837-89-0) is disclosed by 9 Form R facilities totaling 354.8K lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) (CAS 2837-89-0) 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 HONEYWELL INTERNATIONAL INC GEISMAR PLANT in LA at 242.5K 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

2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124): how the 354.8K lbs splits

354.8K lbs across all reported pathways

  • Air Releases354.8K lbs100.0%

2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124)'s 354.8K 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 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) releases across all reporting facilities decreased by 68% (81.5K lbs → 26.5K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) is highly concentrated: Louisiana accounts for 68.3% of the reported total (1 facility). Next: Texas.

  • Louisiana 242.5K lbs
  • Texas 65.7K lbs
  • Kentucky 45.4K lbs
  • New Jersey 674 lbs
  • West Virginia 380 lbs
Industry Sources

Reporting for 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) is highly concentrated by industry: Chemicals facilities account for 99.8% of the reported total (8 facilities). Next: Chemical Wholesalers.

  • Chemicals 354.2K lbs
  • Chemical Wholesalers 674 lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124). Up to 50 shown.

# Facility Release (lbs)
1 Honeywell International Inc Geismar Plant
242.5K lbs
2 The Chemours Co
65.7K lbs
3 Louisville Packaging
42.2K lbs
4 Arkema Inc
3.2K lbs
5 National Refrigerants Inc.
674 lbs
6 Chemours Washington Works
380 lbs
7 Daikin America Inc
250 lbs
8 Hudson Technologies Co
4 lbs
9 Hudson Technologies Co
0 lbs

Frequently Asked Questions

What is 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) in the EPA TRI? ▼
2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) (CAS Number: 2837-89-0) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 9 facilities in the United States report releasing this chemical to the EPA.
How much 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 354.8K lbs of 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) releases to the EPA Toxic Release Inventory across 9 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 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124)? ▼
2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) 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 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124)? ▼
Honeywell International Inc Geismar Plant in LA reports the largest disclosed release of 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) in this dataset, at 242.5K 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 9 facilities on this page.
What is the CAS number for 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124)? ▼
The CAS (Chemical Abstracts Service) Registry Number for 2-Chloro-1,1,1,2-Tetrafluoroethane (hcfc-124) is 2837-89-0. 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

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.