Site

State

PM AQI* (ug/m3)

Erda

UT

34

Smithfield

UT

34

Salmon PM2.5

ID

33

Rose Park

UT

32

MA

UT

28

Sunrise Acres

NV

28

Jerome Mack

NV

27

Preston PM25 BAM

ID

27

Hawthorne

UT

25

Idaho City

ID

23