Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

11

Ascarate Park Southeast C37

TX

10

Socorro Hueco C49

TX

8

Amarillo Texas A&M C320

TX

8

El Paso UTEP C12

TX

7

Yuma Supersite

AZ

7

Eagle Pass C319

TX

7

Lubbock 12th Street

TX

6

Casa Grande Downtown

AZ

6

Anthony

NM

6