Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

23

Yuma Supersite

AZ

10

Odessa Gonzales C1014

TX

10

Hobbs Jefferson

NM

9

Eagle Pass C319

TX

9

Ascarate Park Southeast C37

TX

9

Lubbock 12th Street

TX

7

South Valley

NM

7

North Phoenix

AZ

7

Socorro Hueco C49

TX

7