Site	State	PM AQI* (ug/m3)
John Day Dayton St	OR	29
The Dalles - Cherry Heights	OR	26
Maple Falls-Azure Way	WA	24
Toppenish-Yakama Tribe	WA	21
Darrington-Fir St	WA	20
Klamath Falls - Peterson Sc...	OR	20
Sunnyside-S 16th	WA	19
Roseburg - Garden Valley Blvd.	OR	19
White Swan-Yakama Tribe	WA	18
Prineville - Davidson Park	OR	18