Site

State

PM AQI* (ug/m3)

Broadus

MT

24

Bismarck Residential

ND

14

Beulah North

ND

7

Hannover

ND

7

TRNP-NU

ND

6

RYDER

ND

6

Billlings Lockwood

MT

5

Juliaetta E-sampler

ID

5

Lake Ilo

ND

5

Lostwood NWR

ND

5