Site

State

PM AQI* (ug/m3)

Bismarck Residential

ND

22

St. Maries

ID

19

Libby Courthouse

MT

18

Seeley Elementary School

MT

14

Lewiston

ID

13

Lapwai

ID

10

Rossiter Pump House

MT

10

Pinehurst

ID

10

Bozeman High School

MT

9

French Town - Beckwith

MT

8