Site	State	PM AQI* (ug/m3)
Yakima-4th Ave	WA	29
Ellensburg-Ruby St	WA	26
Colville-E 1st St	WA	25
Sunnyside-S 16th	WA	25
Leavenworth-Evans St	WA	21
Ontario May Roberts Element...	OR	20
Cave Junction Forest Service	OR	19
Wenatchee-Fifth St	WA	18
Hermiston - Municipal Airport	OR	18
Burns - Washington St.	OR	17