Site

State

PM AQI* (ug/m3)

Sunnyside-S 16th

WA

34

Clarkston-13th St

WA

34

Omak-Colville Tribe

WA

27

La Pine Rural Fire Dept

OR

25

Eugene - Highway 99

OR

24

Toppenish-Yakama Tribe

WA

22

Eugene - Amazon Park

OR

21

Colville-E 1st St

WA

21

Ontario May Roberts Element...

OR

20

Kennewick-Metaline

WA

18