Site

State

PM AQI* (ug/m3)

Fargo NW

ND

59

Hannover

ND

14

Rossiter Pump House

MT

14

Birney

MT

13

Billlings Lockwood

MT

13

Butte Greely School

MT

13

Beulah North

ND

12

French Town - Beckwith

MT

11

Bozeman High School

MT

10

Lake Ilo

ND

10