Site

State

PM AQI* (ug/m3)

Salt Lake City-1881 W North...

UT

48

Smithfield

UT

39

Copper View

UT

37

Hawthorne

UT

37

Herriman #3

UT

35

Preston PM25 BAM

ID

33

Salt Lake City-1881 W North...

UT

32

Salt Lake City-1881 W North...

UT

31

Salt Lake City-1881 W North...

UT

30

Rose Park

UT

30