Washington State Department of Ecology Air Quality Monitoring Website

Air Monitoring Sites

The menu on the left provides the ablity to launch a map of Washingtons State's air monitoring sites, execute site reports, view most recent data and link to other sites.
For help on how to use this web site, select Useful Information in the menu then select FAQ

At times, this site may experience a substantial increase in traffic causing Washington's Air Quality Map to load very slowly.
Please use the following links as additional sources for information about Washington State's air quality.

Most recently collected data have yet to be thoroughly reviewed for validity and should be considered preliminary.