Site

State

PM AQI* (ug/m3)

Smithfield

UT

17

Roosvelt

UT

15

Salmon PM2.5

ID

12

Idaho Falls / Penford

ID

12

Jerome Mack

NV

11

Vernal #4

UT

11

Sunrise Acres

NV

9

Preston PM25 BAM

ID

9

Idaho City

ID

9

Ogden #2

UT

9