Site

State

PM AQI* (ug/m3)

Portola

CA

46

Bakersfield - Golden State ...

CA

40

Lake Park

UT

40

Hurst Road

AK

40

NR

UT

38

Erda

UT

38

Salmon PM2.5

ID

38

Copper View

UT

37

Porterville-NFS

CA

36

Corcoran

CA

36