Site

State

PM AQI* (ug/m3)

Seeley Elementary School

MT

37

Kamiah

ID

25

Libby Courthouse

MT

20

Billlings Lockwood

MT

19

Rossiter Pump House

MT

16

Pinehurst

ID

13

St. Maries

ID

12

Lewiston

ID

11

Fargo NW

ND

9

Bismarck Residential

ND

8