ORCAA contracts with the state Department of Ecology for automated polling of PM2.5, Meteorologic, and other data. Click on the individual county names to view the past three days air quality according to the Washington Air Quality Advisory (WAQA) or view all of the air monitoring stations on one page.
Image Right: Looking towards the Pacific Ocean from Cheeka Peak Observatory. Cheeka Peak was designated as an NCORE site as of 2010.

If you are looking for Emissions Inventory data, please see this page or contact Jim Wilson
Various agencies across the state and nationally have air quality data and analysis tools available.
Puget Sound Clean Air Agency - AirTrend Graphing Tool
WA state Department of Ecology - statewide air quality map and station reports
WSU Primary pollutant air forecast model for the Pacific Northwest AirPACT-3
EPA AirCompare - Compare the air quality to other Counties in the nation
Environment Canada - air quality for North America and others