Site

State

PM AQI* (ug/m3)

Libby Courthouse

MT

25

Seeley Elementary School

MT

22

French Town - Beckwith

MT

17

Pinehurst

ID

15

Thompson Falls HS

MT

15

Missoula Boyd Park

MT

11

Bismarck Residential

ND

11

RYDER

ND

9

Fargo NW

ND

9

Hannover

ND

9