Site

State

PM NowCast (ug/m3)

Libby Courthouse

MT

31

Great Falls Overlook Park

MT

18

Lewistown

MT

16

Havre

MT

14

Pinehurst

ID

9

Rossiter Pump House

MT

8

Lapwai

ID

7

Cut Bank

MT

6

Lostwood NWR

ND

6

St. Maries

ID

6