Site

State

PM AQI* (ug/m3)

Cut Bank

MT

9

Bismarck Residential

ND

8

Sidney 201

MT

8

Fargo NW

ND

6

Rossiter Pump House

MT

6

Hannover

ND

6

Seeley Elementary School

MT

6

RYDER

ND

6

Lostwood NWR

ND

5

Miles City

MT

5