Site

State

NowCast

Idaho City

ID

25

Roosvelt

UT

19

Brigham City

UT

9

Smithfield

UT

7

Vernal #4

UT

7

Idaho Falls / Penford

ID

6

Salmon PM2.5

ID

6

Sunrise Acres

NV

5

RT

NV

5

Preston PM25 BAM

ID

5