Site

State

PM AQI* (ug/m3)

Durango Complex

AZ

10

Yuma Supersite

AZ

9

Hidden Valley

AZ

9

South Valley

NM

8

Phoenix JLG Supersite

AZ

8

Nogales Post Office

AZ

7

Jefferson

NM

7

Diablo

AZ

7

North Phoenix

AZ

7

North Valley

NM

7