Site

State

PM NowCast (ug/m3)

Omak-Colville Tribe

WA

50

Burns - Washington St.

OR

35

Prineville - Davidson Park

OR

27

Portland - SE Lafayette

OR

22

John Day Dayton St

OR

22

Portland Near Road

OR

19

Hillsboro - Hare Field

OR

17

Leavenworth-Evans St

WA

17

Twisp-Glover St

WA

16

Tacoma-L St

WA

14