Site

State

PM AQI* (ug/m3)

Colville-E 1st St

WA

15

Baker City - Forest Service

OR

13

Omak-Colville Tribe

WA

13

Maple Falls-Azure Way

WA

13

Cle Elum Mobile

WA

12

Medford Welch & Jackson

OR

12

Burns - Washington St.

OR

12

Brewster Mobile

WA

12

Ontario May Roberts Element...

OR

11

Twisp-Ewell St

WA

10