Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

30

Yuma Supersite

AZ

24

Thirty Third

AZ

14

South Valley

NM

13

Ascarate Park Southeast C37

TX

12

Durango Complex

AZ

11

Nogales Post Office

AZ

11

Geronimo

AZ

11

West Phoenix

AZ

11

South Phoenix

AZ

10