Site

State

PM AQI* (ug/m3)

Winthrop-Chewuch Rd

WA

12

Toppenish-Yakama Tribe

WA

8

Seattle-10th & Weller

WA

7

Seattle-Duwamish

WA

7

Cove - City Hall

OR

7

Taholah-Quinault Tribe

WA

7

Seattle-South Park

WA

7

Roseburg - Garden Valley Blvd.

OR

6

Tacoma-S 36th St

WA

6

Anacortes-202 Ave (SO-AQS)

WA

6