Site

State

PM AQI* (ug/m3)

Seattle-10th & Weller

WA

12

Seattle-Duwamish

WA

12

Baker City - Forest Service

OR

11

Tacoma-L St

WA

10

Seattle-South Park

WA

9

Spokane-Augusta Ave

WA

9

Tacoma-S 36th St

WA

9

Kent-James & Central

WA

8

Anacortes-202 Ave (SO-AQS)

WA

8

Toppenish-Yakama Tribe

WA

8