Site

State

PM AQI* (ug/m3)

Sandpoint U of I

ID

15

Libby Courthouse

MT

11

Missoula Boyd Park

MT

11

Seeley Elementary School

MT

11

Fargo NW

ND

9

Broadus

MT

8

Lake Ilo

ND

8

Lewiston

ID

7

French Town - Beckwith

MT

7

RYDER

ND

7