Site

State

PM NowCast (ug/m3)

Winthrop-Chewuch Rd

WA

23

Seattle-Duwamish

WA

13

Tacoma-L St

WA

12

Tacoma-S 36th St

WA

12

Twisp-Glover St

WA

12

Maple Falls-Azure Way

WA

11

CTCLUSI Radar Hill-OR

OR

10

Spokane-Augusta Ave

WA

10

Marysville-7th Ave

WA

10

Seattle-10th & Weller

WA

9