Site

State

PM AQI* (ug/m3)

Socorro Hueco C49

TX

9

Hidden Valley

AZ

8

Hobbs Jefferson

NM

8

Yuma Supersite

AZ

8

Del Norte

NM

8

South Valley

NM

8

Lubbock 12th Street

TX

8

Amarillo Texas A&M C320

TX

7

El Paso UTEP C12

TX

7

Anthony

NM

7