Site

State

PM AQI* (ug/m3)

Cut Bank

MT

11

Seeley Elementary School

MT

9

St. Maries

ID

9

TRNP-NU

ND

9

Fargo NW

ND

8

Libby Courthouse

MT

7

Theodore Roosevelt NP - Pai...

ND

7

Pinehurst

ID

6

Bozeman High School

MT

6

Sandpoint U of I

ID

6