Site	State	PM AQI* (ug/m3)
Toppenish-Yakama Tribe	WA	27
Yakima-4th Ave	WA	27
Sunnyside-S 16th	WA	26
Wenatchee-Fifth St	WA	20
Ellensburg-Ruby St	WA	19
Leavenworth-Evans St	WA	19
Twisp-Glover St	WA	18
Chelan-Woodin Ave	WA	13
Spokane-E Broadway Ave (US)	WA	13
Colville-E 1st St	WA	13