Site	State	PM AQI* (ug/m3)
Toppenish-Yakama Tribe	WA	28
Sunnyside-S 16th	WA	28
Yakima-4th Ave	WA	27
Omak-Colville Tribe	WA	19
Ellensburg-Ruby St	WA	17
Pendleton - McKay Creek	OR	17
The Dalles - Cherry Heights	OR	16
White Swan-Yakama Tribe	WA	16
Burns - Washington St.	OR	16
Colville-E 1st St	WA	14