Site

State

PM NowCast (ug/m3)

Birney

MT

12

Porthill

BC

12

Great Falls Overlook Park

MT

10

Rossiter Pump House

MT

10

Boundary County

ID

10

Libby Courthouse

MT

10

Mt Hall

ID

9

Kamiah-ID

ID

9

Plummer CDA Tribe

ID

8

Sandpoint U of I

ID

8