Site

State

PM AQI* (ug/m3)

Colville-E 1st St

WA

22

Spokane-E Broadway Ave (US)

WA

17

Moses Lake-Balsam St

WA

16

Rosalia-Josephine St

WA

15

Spokane-Monroe St.

WA

15

Spokane-Augusta Ave

WA

15

Colbert-Greenbluff

WA

15

Omak-Colville Tribe

WA

15

Wellpinit-Spokane Tribe

WA

14

Chelan-Woodin Ave

WA

14