Toxic Release Inventory data for 2024. 18 facilities reported releasing vinylidene chloride.
| Facility | State | On-site (lb) |
|---|---|---|
| Owensboro Specialty Polymers Inc Owensboro | Kentucky | 6.5k |
| Westlake Us 2 Llc Westlake | Louisiana | 3.0k |
| Westlake Vinyls Co Geismar | Louisiana | 441 |
| Occidental Chemical Holding Corp - Geismar Plant Geismar | Louisiana | 361 |
| Trinseo Llc Dalton | Georgia | 238 |
| Westlake Chemicals & Vinyls Llc Plaquemine | Louisiana | 34 |
| Westlake Chemicals & Vinyls Llc Westlake | Louisiana | 31 |
| Shintech Plaquemine Plant Plaquemine | Louisiana | 31 |
| Freeport_olin Bc Freeport | Texas | 27 |
| Westlake Vinyls Inc Calvert City | Kentucky | 10 |
| Veolia Es Technical Solutions Llc Port Arthur Facility Beaumont | Texas | 3 |
| Occidental Chemical Corp Gregory | Texas | 2 |
| Clean Harbors Deer Park Llc La Porte | Texas | 1 |
| Heritage Thermal Services East Liverpool | Ohio | 1 |
| Oxy Vinyls Lp Deer Park-Vcm Plant Deer Park | Texas | 0 |
| Ross Incineration Services Inc Grafton | Ohio | 0 |
| Lubrizol Advanced Materials Inc Louisville | Kentucky | 0 |
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, 18 facilities reported releasing vinylidene chloride to EPA's TRI program.
The primary release pathway is air emissions (10.7k 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 vinylidene chloride 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.