Pollution Rankings

Federal EPA data, ranked. Every ranking below is drawn from the same databases that power the address lookup tool — Superfund NPL, Toxic Release Inventory, and ECHO enforcement records.

Most Polluted StatesAll 50 states ranked by total on-site toxic chemical releases reported to EPA's TRI program Worst Superfund SitesNational Priorities List sites with active cleanup, the most contaminants, and the longest remediation timelines Largest Toxic ReleasesThe 100 industrial facilities releasing the most toxic chemicals in the U.S. Most Penalized FacilitiesThe 100 facilities with the highest cumulative EPA enforcement penalties