Site

State

PM AQI* (ug/m3)

Bismarck Residential

ND

16

Hannover

ND

11

Beulah North

ND

10

TRNP-NU

ND

10

Lake Ilo

ND

9

Cut Bank

MT

7

RYDER

ND

7

Birney

MT

6

Juliaetta E-sampler

ID

6

Sidney 201

MT

6