Site

State

PM AQI* (ug/m3)

Smithfield

UT

12

Logan-US-89

UT

11

Soda Springs PM25

ID

11

Paul E-Sampler

ID

11

Copper View

UT

11

Erda

UT

10

Spanish Springs

NV

10

Jerome Mack

NV

9

Hawthorne

UT

9

Pocatello Garrett and Gould

ID

9