Our mission is to protect, preserve, and enhance Washington's land, air, and water for current
and future generations.
In support of that mission, Ecology maintains a network of air monitoring
stations to measure air pollution around the state in partnership with EPA, tribes, and local clean air
agencies.
Ecology and its partners collect accurate and reliable air quality and meteorological data in near real time
to track pollution trends and ensure compliance with state and federal law. We use this website to inform
the public about air quality and provide guidance that people can use to protect their health when air
quality is not good.