Site	State	AQI*
Twisp-Glover St	WA	22
Clarkston-13th St	WA	21
Yakima-4th Ave	WA	18
John Day Dayton St	OR	17
Winthrop-Chewuch Rd	WA	15
Ellensburg-Ruby St	WA	14
Colville-E 1st St	WA	14
The Dalles - Cherry Heights	OR	13
Wenatchee-Fifth St	WA	12
Burns - Washington St.	OR	12