Site	State	PM AQI* (ug/m3)
Omak-Colville Tribe	WA	24
Airway Heights-West 12th (US)	WA	23
Tacoma-Alexander Ave	WA	21
Medford Welch & Jackson	OR	16
Klamath Falls - Peterson Sc...	OR	16
Winthrop-Chewuch Rd	WA	16
Darrington-Fir St	WA	15
Seattle-Beacon Hill	WA	14
Bremerton-Spruce Ave	WA	14
Maple Falls-Azure Way	WA	14