Site

State

AQI*

Rose Park

UT

14

Hawthorne

UT

12

Brigham City

UT

12

Copper View

UT

11

Salmon PM2.5

ID

11

Jerome Mack

NV

11

Idaho City

ID

10

Sunrise Acres

NV

10

Ogden #2

UT

9

Idaho Falls / Penford

ID

8