Site

State

PM NowCast (ug/m3)

Clarkston-13th St

WA

17

John Day Dayton St

OR

17

Spokane-E Broadway Ave (US)

WA

14

Seattle-10th & Weller

WA

14

Sunnyside-S 16th

WA

13

Yakima-4th Ave

WA

12

Omak-Colville Tribe

WA

12

Portland - SE Lafayette

OR

11

Cove - City Hall

OR

10

Rosalia-Josephine St

WA

10