Site

State

PM AQI* (ug/m3)

St. Lukes Meridian

ID

10

Paul E-Sampler

ID

9

Idaho City

ID

8

Idaho Falls / Penford

ID

8

Weiser PM25

OR

7

Spanish Fork

UT

7

Shoshone Bannock Tribes

ID

7

Rexburg PM25

ID

7

Erda

UT

6

Brigham City

UT

6