Site

State

PM AQI* (ug/m3)

Brigham City

UT

17

Idaho Falls / Penford

ID

9

Weiser PM25

OR

8

Paul E-Sampler

ID

8

Rexburg PM25

ID

7

Spanish Springs

NV

6

Herriman #3

UT

6

RT

NV

6

Paul Meyer

NV

5

Idaho City

ID

5