Site	State	PM AQI* (ug/m3)
Omak-Colville Tribe	WA	23
Ontario May Roberts Element...	OR	21
Grants Pass - Parkside School	OR	16
Yakima-4th Ave	WA	14
Twisp-Ewell St	WA	14
Maple Falls-Azure Way	WA	13
Burns - Washington St.	OR	12
Brewster Mobile	WA	12
Marysville-7th Ave	WA	11
Roseburg Fire Dept	OR	11