Site

State

PM AQI* (ug/m3)

Libby Courthouse

MT

23

Seeley Elementary School

MT

12

French Town - Beckwith

MT

11

Pinehurst

ID

9

Thompson Falls HS

MT

9

Missoula Boyd Park

MT

7

Rossiter Pump House

MT

5

Kamiah-ID

ID

4

Fargo NW

ND

4

Broadus

MT

4