Site

State

PM NowCast (ug/m3)

Libby Courthouse

MT

18

Missoula Boyd Park

MT

15

Great Falls Overlook Park

MT

12

Sandpoint U of I

ID

11

Kamiah

ID

11

Butte Greely School

MT

10

Lake Ilo

ND

10

Billlings Lockwood

MT

9

Fargo NW

ND

8

Havre

MT

7