Site

State

PM AQI* (ug/m3)

Fargo NW

ND

9

Broadus

MT

7

Bismarck Residential

ND

6

RYDER

ND

6

Bozeman High School

MT

6

TRNP-NU

ND

5

Juliaetta E-sampler

ID

5

Libby Courthouse

MT

5

Porthill

BC

5

Boundary County

ID

5