Site

State

PM AQI* (ug/m3)

Inchelium

WA

10

Clarkston-13th St

WA

8

Portland - SE Lafayette

OR

8

Baker City - Forest Service

OR

7

Colbert-Greenbluff

WA

7

Spokane-Augusta Ave

WA

7

Bend - Pump Station

OR

7

Enterprise - US Forest Service

OR

6

Port Angeles-E 5th St

WA

6

Springfield City Hall

OR

6