Site

State

PM AQI* (ug/m3)

Hurst Road

AK

46

Maple Falls-Azure Way

WA

43

Portola

CA

37

Salmon PM2.5

ID

31

Hawthorne

UT

27

McCall

ID

27

Visalia - N. Church Street

CA

26

Bakersfield - California Ave

CA

26

Salt Lake City-1881 W North...

UT

26

A Street

AK

25