Site

State

PM AQI* (ug/m3)

Baker City - Forest Service

OR

27

Cave Junction Forest Service

OR

24

Yakima-4th Ave

WA

24

Cashmere Mobile

WA

20

Maple Falls-Azure Way

WA

20

Grants Pass - Parkside School

OR

19

Sunnyside-S 16th

WA

18

Ontario May Roberts Element...

OR

18

La Grande Hall & N Sts

OR

17

Toppenish-Yakama Tribe

WA

16