Site

State

PM AQI* (ug/m3)

Libby Courthouse

MT

21

St. Maries

ID

14

Grangeville

ID

14

Seeley Elementary School

MT

13

Beulah North

ND

11

Nursery Rd.

ID

10

Kamiah

ID

9

Bozeman High School

MT

8

Sandpoint U of I

ID

7

Missoula Boyd Park

MT

7