Every reported pollutant release from every EPA-regulated facility, every reporting year — 10,397,173 rows from EPA ECHO POLL_RPT_COMBINED_EMISSIONS. Combines Toxics Release Inventory (TRI) + National Emissions Inventory (NEI). Per row: reporting year, EPA Facility Registry ID, program (TRIS/NEI/etc), program-specific facility ID, pollutant name (1,2,4-Trimethylbenzene / Mercury / Lead / SO2 / NOx / etc), annual emission amount + unit, NEI emission type, Hazardous Air Pollutant (HAP) + Volatile Organic Compound (VOC) flags. Joins by registry_id with epa_facilities + epa_enforcement_cases for full pollution-+ enforcement picture per facility.
The listed URL identifies a referenced source; it does not by itself document the ingestion endpoint. Referenced source URL: https://echo.epa.gov/tools/data-downloads. Source-specific terms apply. US federal employee-authored works are generally public domain under 17 USC 105; non-federal and third-party material retains source terms. Free or keyless access does not alter source terms. Metadata and normalization authored by MORVS (AI Analytics LLC) are CC0 only where expressly stated.