Site

State

PM AQI* (ug/m3)

Libby Courthouse

MT

7

Seeley Elementary School

MT

7

Havre

MT

6

French Town - Beckwith

MT

6

Birney

MT

6

Sandpoint U of I

ID

6

Rossiter Pump House

MT

6

Billlings Lockwood

MT

6

Porthill

BC

6

Missoula Boyd Park

MT

6