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Federal
AirNow Real Time Air Quality REST API
U.S. Environmental Protection Agency —
A REST web service API allowing the retrieval of real time air quality index data from AirNow. -
Federal
Ambient Air Quality Data Inventory
U.S. Environmental Protection Agency —
The Office of Air and Radiation's (OAR) Ambient Air Quality Data (Current) contains ambient air pollution data collected by EPA, other federal agencies, as well as... -
Federal
Air Quality System (AQS) ambient observations: 2008 PM2.5
U.S. Environmental Protection Agency —
Ambient PM2.5 (particulate matter less than 2.5 microns) concentrations from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).