Site	State	PM AQI* (ug/m3)
Yakima-4th Ave	WA	25
Toppenish-Yakama Tribe	WA	20
Sunnyside-S 16th	WA	19
White Swan-Yakama Tribe	WA	17
Ellensburg-Ruby St	WA	16
Twisp-Glover St	WA	16
The Dalles - Cherry Heights	OR	15
John Day Dayton St	OR	13
Oakridge - Willamette Activ...	OR	12
Colville-E 1st St	WA	11