Site

State

AQI*

Idaho Falls / Penford

ID

13

Rose Park

UT

13

Pocatello Garrett and Gould

ID

13

Copper View

UT

12

Smithfield

UT

11

Garden Valley

ID

11

Sparks

NV

11

Twin Falls PM25

ID

10

Hawthorne

UT

10

Salmon PM2.5

ID

10