Site

State

NowCast

Brigham City

UT

16

Ogden #2

UT

10

Reno3

NV

10

Salmon PM2.5

ID

9

Copper View

UT

8

Rose Park

UT

7

Smithfield

UT

7

Herriman #3

UT

6

Hawthorne

UT

6

Preston PM25 BAM

ID

6