Site

State

PM AQI* (ug/m3)

Fargo NW

ND

7

RYDER

ND

7

Sidney 201

MT

7

Bozeman High School

MT

6

Great Falls Overlook Park

MT

6

Libby Courthouse

MT

6

Kamiah-ID

ID

6

Juliaetta E-sampler

ID

5

Plummer CDA Tribe

ID

5

Porthill

BC

5