Site

State

NowCast

Brigham City

UT

18

Reno3

NV

11

Salmon PM2.5

ID

10

Ogden #2

UT

9

Copper View

UT

8

Idaho Falls / Penford

ID

7

Rose Park

UT

7

Herriman #3

UT

6

Smithfield

UT

6

Hawthorne

UT

6