Site

State

PM AQI* (ug/m3)

Marysville-7th Ave

WA

10

Seattle-10th & Weller

WA

9

Seattle-Duwamish

WA

8

Tacoma-S 36th St

WA

8

Seattle-South Park

WA

8

Darrington-Fir St

WA

8

Sunnyside-S 16th

WA

7

Bremerton-Spruce Ave

WA

7

Portland Near Road

OR

7

Kent-James & Central

WA

7