Site

State

PM AQI* (ug/m3)

Enoch

UT

7

Weiser PM25

OR

7

Cave Camp - Timpanogos Cave

UT

7

Rexburg PM25

ID

6

Jerome Mack

NV

6

Walnut Rec.

NV

6

Erda

UT

6

NR

UT

6

Casino Center

NV

6

Vernal #4

UT

5