Plot daily AQI values for a specific location and time period. Each square or “tile” represents one day of the year and is color-coded based on the AQI level for that day. The legend tallies the number of days in each AQI category.
Note: As of March 18, 2013, all PM2.5 AQI values and summaries provided by AirData reflect the recently updated AQI breakpoints. For a fact sheet on the revised PM2.5 standards and updated AQI breakpoints, visit: http://www.epa.gov/airquality/particlepollution/2012/decfsstandards.pdf