Site

State

PM AQI* (ug/m3)

CHICK.

AL

53

Sapello-1033 NM-518

NM

41

Hidden Valley

AZ

40

PM2.5 Mammoth Lakes EBAM

CA

28

South Phoenix

AZ

23

Nipomo Mesa CDF

CA

22

Portola

CA

21

Montvale-1069 Goose Creek V...

VA

20

Springville

CA

20

Durango Complex

AZ

19