Ambient concentrations of most requested pollutants from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).

The EPA Control Measure Dataset is a collection of documents describing air pollution control available to regulated facilities for the control and abatement of air pollution...

The CMAQ Model Outputs data asset includes current and projected future levels of ambient concentrations and deposition to support regulatory impact analyses.

A KML file with the location of all real time air quality monitors and the current conditions (air quality index).

A REST web service API allowing the retrieval of real time air quality index data from AirNow.

Ambient ozone concentrations for 2007 from the national ambient air quality monitoring networks stored in the Air Quality System (AQS).

Download daily data for a specific location and time period. This tool queries daily air quality summary statistics for the criteria pollutants by monitor. You can get data for...