Site

State

PM AQI* (ug/m3)

Sunnyside-S 16th

WA

45

Detroit Lake

OR

33

Maple Falls-Azure Way

WA

26

Mill City

OR

22

John Day Dayton St

OR

22

Lyons

OR

20

Tukwila_Allentown

WA

19

Leavenworth-Evans St

WA

19

Pendleton - McKay Creek

OR

19

Edmonds-1115 4th Ave S

WA

17