Site	State	PM AQI* (ug/m3)
Omak-Colville Tribe	WA	22
John Day Dayton St	OR	19
Maple Falls-Azure Way	WA	18
Brewster Mobile	WA	17
Twisp-Ewell St	WA	13
Seattle-10th & Weller	WA	12
Burns - Washington St.	OR	12
Marysville-7th Ave	WA	11
Newport-Calispel	WA	10
Grants Pass - Parkside School	OR	10