Site

State

PM AQI* (ug/m3)

Birney

MT

10

Beulah North

ND

6

Seeley Elementary School

MT

6

Bismarck Residential

ND

6

Potlatch

ID

6

Plummer CDA Tribe

ID

5

TRNP-NU

ND

5

Juliaetta E-sampler

ID

5

Hannover

ND

5

Sidney 201

MT

5