Site

State

PM AQI* (ug/m3)

Fargo NW

ND

11

Birney

MT

11

Lewiston

ID

11

St. Maries

ID

11

Plummer CDA Tribe

ID

10

Nursery Rd.

ID

9

Libby Courthouse

MT

9

Lapwai

ID

9

Billlings Lockwood

MT

9

Malta

MT

9