Site	State	PM AQI* (ug/m3)
Spokane-Augusta Ave	WA	31
Newport-Calispel	WA	29
Colbert-Greenbluff	WA	29
Spokane-E Broadway Ave	WA	28
Sunnyside-S 16th	WA	28
Coos Bay Marshfield HS	OR	27
Airway Heights-West 12th (US)	WA	27
Spokane-Monroe St.	WA	25
Pendleton - McKay Creek	OR	22
Hermiston - Municipal Airport	OR	21