Site

State

PM AQI* (ug/m3)

Yuma Supersite

AZ

11

Lubbock 12th Street

TX

7

West Phoenix

AZ

7

Orange Grove

AZ

7

Odessa Gonzales C1014

TX

7

El Paso UTEP C12

TX

6

Socorro Hueco C49

TX

6

Geronimo

AZ

6

Chamizal C41

TX

6

Nogales Post Office

AZ

6