Site	State	PM AQI* (ug/m3)
Ellensburg-Ruby St	WA	21
Yakima-4th Ave	WA	19
Madras - Westside School	OR	19
Sunnyside-S 16th	WA	18
Oakridge - Willamette Activ...	OR	18
Toppenish-Yakama Tribe	WA	16
Maple Falls-Azure Way	WA	16
Tacoma-L St	WA	15
Kennewick-Metaline	WA	14
John Day Dayton St	OR	14