Site	State	PM AQI* (ug/m3)
Maple Falls-Azure Way	WA	38
Sunnyside-S 16th	WA	34
Toppenish-Yakama Tribe	WA	28
Yakima-4th Ave	WA	21
Omak-Colville Tribe	WA	18
White Swan-Yakama Tribe	WA	17
Hermiston - Municipal Airport	OR	16
Walla Walla-12th St	WA	15
Salem - State Hospital	OR	14
The Dalles - Cherry Heights	OR	13