Site

State

PM AQI* (ug/m3)

Salmon PM2.5

ID

48

Roosvelt

UT

26

Smithfield

UT

25

Vernal #4

UT

20

Idaho City

ID

18

Garden Valley

ID

13

Preston PM25 BAM

ID

12

Nampa Fire Station

ID

11

Idaho Falls / Penford

ID

9

St. Lukes Meridian

ID

8