Toxic Release Inventory data for 2024. 15 facilities reported releasing malathion.
| Facility | State | On-site (lb) |
|---|---|---|
| Elemental Environmental Solutions Llc Arkadelphia | Arkansas | 440 |
| Platte Chemical Co Greenville | Mississippi | 303 |
| Clean Harbors Environmental Services Inc Kimball | Nebraska | 8 |
| Clean Harbors Aragonite Llc Grantsville | Utah | 1 |
| Clean Harbors Deer Park Llc La Porte | Texas | 0 |
| Schirm Usa Inc. Ennis | Texas | 0 |
| Clean Harbors El Dorado Llc El Dorado | Arkansas | 0 |
| Heritage Thermal Services East Liverpool | Ohio | 0 |
| Ross Incineration Services Inc Grafton | Ohio | 0 |
| Drexel Chemical Co Cordele | Georgia | 0 |
| Chemsico Saint Louis | Missouri | 0 |
| Voluntary Purchasing Groups Inc Bonham | Texas | 0 |
| Arcwood Environmental - Orange Llc Orange | Texas | 0 |
| Scotts Co Fort Madison Iowa Fort Madison | Iowa | 0 |
| Pbi/Gordon Corp - Jayhawk Facility Crestline | Kansas | 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, 15 facilities reported releasing malathion to EPA's TRI program.
The primary release pathway is land disposal (438 lb), which includes landfills, surface impoundments, land treatment, and underground injection.
TRI data represents reported releases, not measured environmental concentrations. A facility reporting large releases of malathion 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.