Site

State

PM AQI* (ug/m3)

John Day Dayton St

OR

35

Maple Falls-Azure Way

WA

22

Marysville-7th Ave

WA

19

Sunnyside-S 16th

WA

18

Madras - Westside School

OR

17

Lakeview - Center & M

OR

15

Colville-E 1st St

WA

15

Cave Junction Forest Service

OR

14

Mill City

OR

14

Kent-James & Central

WA

14