Site

State

AQI*

Vernal #4

UT

13

Idaho City

ID

11

Roosvelt

UT

10

Garden Valley

ID

9

Nampa Fire Station

ID

9

Brigham City

UT

9

Jerome Mack

NV

9

Idaho Falls / Penford

ID

8

Hawthorne

UT

8

RT

NV

8