Site

State

PM AQI* (ug/m3)

Idaho City

ID

17

Roosvelt

UT

13

Preston PM25 BAM

ID

11

Harrisville

UT

10

RT

NV

10

Vernal #4

UT

10

Jerome Mack

NV

10

Sunrise Acres

NV

9

Walter Johnson

NV

9

Lake Park

UT

9