Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

23

Durango Complex

AZ

17

West Phoenix

AZ

14

South Valley

NM

14

Diablo

AZ

14

Chamizal C41

TX

14

Ascarate Park Southeast C37

TX

13

North Valley

NM

13

Yuma Supersite

AZ

12

Phoenix JLG Supersite

AZ

11