Site	State	PM AQI* (ug/m3)
Maple Falls-Azure Way	WA	18
Klamath Falls - Peterson Sc...	OR	17
Oakridge - Willamette Activ...	OR	15
Tacoma-L St	WA	14
Custer-Loomis (SO-AQS)	WA	13
Marysville-7th Ave	WA	12
Seattle-10th & Weller	WA	11
Vancouver-NE 84th Ave	WA	11
Seattle-South Park	WA	11
Pendleton - McKay Creek	OR	11