Site

State

PM AQI* (ug/m3)

Lewiston

ID

16

St. Maries

ID

14

Pinehurst

ID

12

Missoula Boyd Park

MT

12

Libby Courthouse

MT

11

Seeley Elementary School

MT

10

Kamiah-ID

ID

9

French Town - Beckwith

MT

9

Columbia Falls

MT

9

Beulah North

ND

8