Site

State

PM AQI* (ug/m3)

Hobbs Jefferson

NM

9

Ascarate Park Southeast C37

TX

8

Socorro Hueco C49

TX

8

Jefferson

NM

7

Yuma Supersite

AZ

7

Amarillo Texas A&M C320

TX

7

El Paso UTEP C12

TX

6

Lubbock 12th Street

TX

6

South Valley

NM

6

Phoenix JLG Supersite

AZ

6