Site

State

PM AQI* (ug/m3)

Hawthorne

UT

10

Idaho Falls / Penford

ID

9

Shoshone Bannock Tribes

ID

8

Weiser PM25

OR

7

Paul E-Sampler

ID

7

RT

NV

7

Spanish Fork

UT

6

Copper View

UT

6

Rose Park

UT

6

Brigham City

UT

6