Site

State

PM AQI* (ug/m3)

Idaho Falls / Penford

ID

10

Copper View

UT

9

Soda Springs PM25

ID

9

Paul E-Sampler

ID

8

Garden Valley

ID

7

Weiser PM25

OR

7

Spanish Fork

UT

7

Sparks

NV

7

Spanish Springs

NV

7

Rexburg PM25

ID

7