Site

State

PM AQI* (ug/m3)

Sunnyside-S 16th

WA

16

John Day Dayton St

OR

15

Burns - Washington St.

OR

15

Port Angeles-E 5th St

WA

14

Maple Falls-Azure Way

WA

13

Omak-Colville Tribe

WA

13

Oakridge - Willamette Activ...

OR

12

Pendleton - McKay Creek

OR

12

Yakima-4th Ave

WA

11

Brewster Mobile

WA

10