Site

State

PM NowCast (ug/m3)

Maple Falls-Azure Way

WA

44

Toppenish-Yakama Tribe

WA

29

Sunnyside-S 16th

WA

25

Tacoma-L St

WA

21

Vancouver-NE 84th Ave

WA

21

Yakima-4th Ave

WA

19

Lacey-College St

WA

18

Colville-E 1st St

WA

16

Ellensburg-Ruby St

WA

15

Walla Walla-12th St

WA

15