Site

State

PM NowCast (ug/m3)

Libby Courthouse

MT

21

St. Maries

ID

14

Butte Greely School

MT

13

Columbia Falls

MT

12

Seeley Elementary School

MT

10

Dillon

MT

9

Grangeville

ID

9

Bozeman High School

MT

9

Missoula Boyd Park

MT

7

Nursery Rd.

ID

7