Site

State

PM AQI* (ug/m3)

Thirty Third

AZ

26

West Phoenix

AZ

22

Nogales Post Office

AZ

22

South Phoenix

AZ

19

Durango Complex

AZ

19

Phoenix JLG Supersite

AZ

16

Geronimo

AZ

14

Hidden Valley

AZ

13

Casa Grande Downtown

AZ

12

Socorro Hueco C49

TX

12