Site

State

PM AQI* (ug/m3)

Libby Courthouse

MT

26

Seeley Elementary School

MT

22

Fargo NW

ND

13

French Town - Beckwith

MT

12

Pinehurst

ID

12

Havre

MT

12

Cut Bank

MT

11

Bismarck Residential

ND

11

Malta

MT

10

Lake Ilo

ND

10