Site

State

PM AQI* (ug/m3)

Bozeman High School

MT

5

Billlings Lockwood

MT

5

Juliaetta E-sampler

ID

5

Porthill

BC

5

Plummer CDA Tribe

ID

5

Libby Courthouse

MT

4

Fargo NW

ND

4

Broadus

MT

4

Kamiah-ID

ID

4

TRNP-NU

ND

4