Site

State

PM NowCast (ug/m3)

John Day Dayton St

OR

20

Maple Falls-Azure Way

WA

18

Marysville-7th Ave

WA

17

Darrington-Fir St

WA

17

Winthrop-Chewuch Rd

WA

16

Spokane-E Broadway Ave (US)

WA

14

Colville-E 1st St

WA

13

Portland - SE Lafayette

OR

13

Sunnyside-S 16th

WA

13

Vancouver-NE 84th Ave

WA

12