Site

State

PM AQI* (ug/m3)

Anacortes-202 Ave (SO-AQS)

WA

11

Seattle-10th & Weller

WA

11

Custer-Loomis (SO-AQS)

WA

10

Seattle-Duwamish

WA

9

Seattle-South Park

WA

8

Springfield City Hall

OR

8

Tacoma-Alexander Ave

WA

8

Roseburg - Garden Valley Blvd.

OR

8

Tacoma-S 36th St

WA

8

Eugene - Wilkes Dr.

OR

7