Site

State

PM NowCast (ug/m3)

Sunnyside-S 16th

WA

46

Toppenish-Yakama Tribe

WA

45

Yakima-4th Ave

WA

42

Walla Walla-12th St

WA

39

Clarkston-13th St

WA

30

Salem - State Hospital

OR

26

Madras - Westside School

OR

26

Kennewick-Metaline

WA

25

Lyons

OR

24

Grants Pass - Parkside School

OR

22