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Outdoor Air Quality Data

Air Data - Multiyear Tile Plot

Monday, August 20: AirData services are unavailable today due to a problem with the weekly database update. We expect services to be restored by Tuesday, August 21.

The interactive map and pre-generated files are still available during this outage.

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.

  1. from to   (Maximum 25 years / Query time: 15 years ~ 30 seconds, 25 years ~ 1-2 minutes)

  2.     -- or --


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