Site

State

PM AQI* (ug/m3)

Socorro Hueco C49

TX

16

Hobbs Jefferson

NM

14

El Paso UTEP C12

TX

13

Ascarate Park Southeast C37

TX

13

Yuma Supersite

AZ

12

Jefferson

NM

10

Hidden Valley

AZ

10

Odessa Gonzales C1014

TX

9

South Valley

NM

9

Durango Complex

AZ

7