Site	State	PM AQI* (ug/m3)
Omak-Colville Tribe	WA	18
Sunnyside-S 16th	WA	16
Ellensburg-Ruby St	WA	16
Madras - Westside School	OR	16
Seattle-South Park	WA	12
Clarkston-13th St	WA	11
Mt Vernon-S 2nd St	WA	11
Yakima-4th Ave	WA	11
Quincy 3rd	WA	11
Portland Near Road	OR	11