Site

State

PM AQI* (ug/m3)

Lostwood NWR

ND

51

RYDER

ND

41

Hannover

ND

32

Bismarck Residential

ND

22

Beulah North

ND

19

Birney

MT

11

Bozeman High School

MT

10

Rossiter Pump House

MT

10

Billlings Lockwood

MT

9

Fargo NW

ND

9