Site

State

PM AQI* (ug/m3)

Sequoia and Kings Canyon - ...

CA

40

Three Rivers

CA

36

Casa Grande Downtown

AZ

31

Keeler

CA

30

Indio - Jackson Street

CA

28

Yuma Supersite

AZ

28

Orange Grove

AZ

28

Hidden Valley

AZ

27

Coachline

AZ

26

Anthony

NM

26