Site

State

PM NowCast (ug/m3)

Sunnyside-S 16th

WA

55

Toppenish-Yakama Tribe

WA

43

Yakima-4th Ave

WA

43

Walla Walla-12th St

WA

42

Klamath Falls - Peterson Sc...

OR

37

Omak-Colville Tribe

WA

37

Medford Welch & Jackson

OR

33

Dayton-W Main

WA

32

Spokane-E Broadway Ave (US)

WA

32

Cottage Grove City Shops

OR

31