Site

State

PM AQI* (ug/m3)

St. Lukes Meridian

ID

9

Paul E-Sampler

ID

8

Weiser PM25

OR

7

Rexburg PM25

ID

6

Idaho Falls / Penford

ID

6

Brigham City

UT

5

Soda Springs PM25

ID

4

Shoshone Bannock Tribes

ID

4

Idaho City

ID

4

Spanish Springs

NV

4