Site	State	PM AQI* (ug/m3)
Omak-Colville Tribe	WA	16
Colville-E 1st St	WA	13
Ellensburg-Ruby St	WA	12
John Day Dayton St	OR	11
Clarkston-13th St	WA	11
Maple Falls-Azure Way	WA	11
Darrington-Fir St	WA	10
The Dalles - Cherry Heights	OR	10
Brewster Mobile	WA	10
Hermiston - Municipal Airport	OR	9