Site

State

PM AQI* (ug/m3)

John Day Dayton St

OR

29

Omak-Colville Tribe

WA

28

Klamath Falls - Peterson Sc...

OR

19

Yakima-4th Ave

WA

17

Medford Welch & Jackson

OR

15

Burns - Washington St.

OR

13

Leavenworth-Evans St

WA

13

Wenatchee-Fifth St

WA

12

Mobile-Yakima

WA

12

Ashland Fire Dept

OR

11