Site

State

AQI*

Salmon PM2.5

ID

33

Smithfield

UT

29

Idaho City

ID

26

NR

UT

20

Preston PM25 BAM

ID

19

Brigham City

UT

19

Jerome Mack

NV

19

Sunrise Acres

NV

18

Hawthorne

UT

18

Rose Park

UT

18