Basic Information
AirData gives you access to air quality data collected at outdoor monitors across the United States. Read more
Reports
Air Quality IndexDisplay an annual summary of AQI values.
Air Quality StatisticsDisplay standards-related summary data by city or county.
Monitor ValuesDisplay criteria pollutant summary data.
Monitor Values - HAPsDisplay Hazardous Air Pollutant (HAP) summary data.
Visualize Data
AQI PlotCompare AQI values for a location & time.
Tile PlotPlot daily AQI values for a location & time.
Concentration PlotGenerate a time series plot for a location.
Concentration MapGenerate concentration maps for a specific time.
More ToolsSee other visualization tools.
Download Data
Download daily or raw data to a spreadsheet or file. Interactive Map
See where air quality monitors are located, get information about the monitors, and download monitor data. Select which monitoring networks to display.
Latest News
- April 2, 2014 - A Monitor Values Report for Hazardous Air Pollutants is now available.
- March 4, 2014 - Pre-generated files of data for the entire nation are now available at Download Data Files. These are files of our most commonly requested parameters at the annual, daily, and hourly summary levels.
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Other Sources of Air Data
- AirNow - forecasts and real-time data
- AirCompare - help with planning a move or vacation
- Air Emission Sources - national, state, and county summaries
- More Sources