Site

State

PM AQI* (ug/m3)

Juliaetta E-sampler

ID

6

Libby Courthouse

MT

6

Bismarck Residential

ND

5

Grangeville

ID

5

Lostwood NWR

ND

5

Porthill

BC

5

Sandpoint U of I

ID

5

Havre

MT

5

RYDER

ND

5

Fargo NW

ND

5