1-Chloro-1, 1-difluoroethane (HCFC-142b)

Toxic Release Inventory data for 2024. 8 facilities reported releasing 1-chloro-1, 1-difluoroethane (hcfc-142b).

On-site releases78.3k lb
Off-site transfers283.5k lb
Air emissions77.8k lbstack + fugitive
Water discharges509 lb

Largest 2024 releasers

FacilityStateOn-site (lb)
Arkema Inc
Calvert City
Kentucky71.4k
3m Chemical Operations' Decatur Facility
Decatur
Alabama3.7k
Solvay Specialty Polymers Usa Llc
Thorofare
New Jersey3.1k
Louisville Packaging
Louisville
Kentucky190
Clean Harbors El Dorado Llc
El Dorado
Arkansas0
Hudson Technologies Co
Ontario
California0
Hudson Technologies Co
Atlanta
Georgia0
Hudson Technologies Co
Champaign
Illinois0

About 1-Chloro-1, 1-difluoroethane (HCFC-142b) in the Toxic Release Inventory

The Toxic Release Inventory (TRI) tracks how much of each listed chemical U.S. industrial facilities release into the environment each year. EPA requires facilities in certain industry sectors that manufacture, process, or otherwise use TRI-listed chemicals above threshold amounts to report annually. In 2024, 8 facilities reported releasing 1-chloro-1, 1-difluoroethane (hcfc-142b) to EPA's TRI program.

The primary release pathway is air emissions (77.8k lb), which includes both stack emissions from industrial processes and fugitive emissions from equipment leaks, evaporation, and other non-point sources.

TRI data represents reported releases, not measured environmental concentrations. A facility reporting large releases of 1-chloro-1, 1-difluoroethane (hcfc-142b) is not necessarily causing harm at those levels — toxicity, exposure pathways, and local conditions all matter. Conversely, small reported amounts of highly toxic chemicals can pose greater risk than large amounts of less toxic ones. TRI is a transparency tool, not a risk assessment.

For health information about specific chemicals, the Agency for Toxic Substances and Disease Registry (ATSDR) publishes toxicological profiles, and EPA's Integrated Risk Information System (IRIS) provides reference doses and cancer classifications.