Site	State	PM AQI* (ug/m3)
John Day Dayton St	OR	20
Colville-E 1st St	WA	15
Twisp-Glover St	WA	13
Winthrop-Chewuch Rd	WA	12
Clarkston-13th St	WA	11
Omak-Colville Tribe	WA	11
Klamath Falls - Peterson Sc...	OR	10
Maple Falls-Azure Way	WA	9
Grants Pass - Parkside School	OR	9
Cave Junction Forest Service	OR	9