Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

12

Ascarate Park Southeast C37

TX

11

Hobbs Jefferson

NM

11

El Paso UTEP C12

TX

9

Anthony

NM

9

Odessa Gonzales C1014

TX

8

Santa Teresa

NM

8

Yuma Supersite

AZ

7

South Valley

NM

7

Socorro Hueco C49

TX

7