Site

State

PM AQI* (ug/m3)

Medford Welch & Jackson

OR

15

Omak-Colville Tribe

WA

14

Leavenworth-Evans St

WA

10

Port Angeles-E 5th St

WA

9

John Day Dayton St

OR

8

Cottage Grove City Shops

OR

8

Newport-Calispel

WA

8

Burns - Washington St.

OR

8

Colville-E 1st St

WA

8

Maple Falls-Azure Way

WA

7