Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

17

Durango Complex

AZ

9

Phoenix JLG Supersite

AZ

9

Ascarate Park Southeast C37

TX

8

Jefferson

NM

8

Chamizal C41

TX

8

El Paso UTEP C12

TX

8

South Valley

NM

8

Nogales Post Office

AZ

8

West Phoenix

AZ

7