Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

23

Yuma Supersite

AZ

16

Socorro Hueco C49

TX

14

Ascarate Park Southeast C37

TX

14

Nogales Post Office

AZ

13

South Phoenix

AZ

12

Santa Fe-1190 S Saint Franc...

NM

12

Durango Complex

AZ

10

Jefferson

NM

10

Phoenix JLG Supersite

AZ

10