Site	State	PM AQI* (ug/m3)
Yakima-4th Ave	WA	29
Toppenish-Yakama Tribe	WA	28
Sunnyside-S 16th	WA	22
Darrington-Fir St	WA	21
Spokane-Augusta Ave	WA	17
Twisp-Glover St	WA	16
Spokane-E Broadway Ave (US)	WA	15
Colville-E 1st St	WA	15
Spokane-Monroe St.	WA	14
Grants Pass - Parkside School	OR	13