Site

State

PM AQI* (ug/m3)

Maple Falls-Azure Way

WA

58

Tacoma-L St

WA

38

Darrington-Fir St

WA

38

Klamath Falls - Peterson Sc...

OR

28

Tacoma-S 36th St

WA

26

Madras - Westside School

OR

24

Kent-James & Central

WA

23

Hillsboro - Hare Field

OR

23

Lakeview - Center & M

OR

21

Pendleton - McKay Creek

OR

20