Site

State

PM AQI* (ug/m3)

Newport-Calispel

WA

93

Colville-E 1st St

WA

88

Spokane-Monroe St.

WA

81

Spokane-Augusta Ave

WA

80

Colbert-Greenbluff

WA

77

Spokane-E Broadway Ave

WA

77

Rosalia-Josephine St

WA

71

Omak-Colville Tribe

WA

69

Dayton-W Main

WA

66

Wellpinit-Spokane Tribe

WA

65