EPA TRI Chemical
Chlorodifluoromethane (hcfc-22)
CAS Number: 75-45-6
- Total releases
- 5.5M lbs
- Number of facilities
- 72
- Carcinogen
- No
- PBT substance
- No
According to the EPA Toxics Release Inventory, Chlorodifluoromethane (hcfc-22) (CAS 75-45-6) is disclosed by 72 Form R facilities totaling 5.5M lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.
Chlorodifluoromethane (hcfc-22) (CAS 75-45-6) 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.
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 CHEMOURS LOUISVILLE PLANT in KY at 2.4M 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
Chlorodifluoromethane (hcfc-22): how the 5.5M lbs splits
5.5M lbs across all reported pathways
- Air Releases5.2M lbs95.4%
- Off-site Transfers250.7K lbs4.6%
Chlorodifluoromethane (hcfc-22)'s 5.5M lbs Form-R total is AIR, with air releases making up 95.4% of the bar. Next segment: off-site transfers at 4.6%.
Trend & Where It's Reported
Between 2019 and 2023, cumulative annual Chlorodifluoromethane (hcfc-22) releases across all reporting facilities decreased by 32% (1.5M lbs → 1.0M lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.
Reporting for Chlorodifluoromethane (hcfc-22) is concentrated: Kentucky accounts for 47.1% of the reported total (3 facilities). Next: Alabama.
- Kentucky 2.6M lbs
- Alabama 1.2M lbs
- Louisiana 491.1K lbs
- New Jersey 229.0K lbs
- Texas 213.5K lbs
Reporting for Chlorodifluoromethane (hcfc-22) is highly concentrated by industry: Chemicals facilities account for 86.6% of the reported total (46 facilities). Next: Chemical Wholesalers.
- Chemicals 4.7M lbs
- Chemical Wholesalers 295.3K lbs
- Fabricated Metals 250.7K lbs
- Food 67.6K lbs
- Petroleum 44.2K lbs
Which facilities release the most of this chemical?
Facilities with the largest reported releases of Chlorodifluoromethane (hcfc-22). Up to 50 shown.
Frequently Asked Questions
What is Chlorodifluoromethane (hcfc-22) in the EPA TRI? ▼
How much Chlorodifluoromethane (hcfc-22) is disclosed in U.S. TRI filings? ▼
How does EPA TRI classify Chlorodifluoromethane (hcfc-22)? ▼
Which facilities disclose the most Chlorodifluoromethane (hcfc-22)? ▼
What is the CAS number for Chlorodifluoromethane (hcfc-22)? ▼
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.
Related
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.