Site

State

PM AQI* (ug/m3)

Seeley Elementary School

MT

24

Libby Courthouse

MT

14

St. Maries

ID

13

Thompson Falls HS

MT

10

Williston

ND

10

Sidney 201

MT

9

French Town - Beckwith

MT

9

Kamiah

ID

9

RYDER

ND

9

Malta

MT

9