Site

State

PM AQI* (ug/m3)

Spanish Fork

UT

9

Idaho Falls / Penford

ID

9

Paul E-Sampler

ID

8

Enoch

UT

7

Weiser PM25

OR

7

Idaho City

ID

7

RT

NV

6

Copper View

UT

6

Rexburg PM25

ID

6

Jean

NV

6