Site

State

PM AQI* (ug/m3)

Bend - Pump Station

OR

16

Omak-Colville Tribe

WA

8

Sunnyside-S 16th

WA

7

Kent-James & Central

WA

7

Colbert-Greenbluff

WA

7

Spokane-E Broadway Ave

WA

6

CTCLUSI Radar Hill-OR

OR

6

Gresham Centennial HS

OR

6

Wellpinit-Spokane Tribe

WA

6

Seattle-Duwamish

WA

6