Site

State

PM NowCast (ug/m3)

Yakima-4th Ave

WA

31

Sunnyside-S 16th

WA

30

Toppenish-Yakama Tribe

WA

23

Wenatchee-Fifth St

WA

21

Omak-Colville Tribe

WA

21

White Swan-Yakama Tribe

WA

20

Pendleton - McKay Creek

OR

20

Walla Walla-12th St

WA

20

Leavenworth-Evans St

WA

19

Maple Falls-Azure Way

WA

17