Site

State

PM AQI* (ug/m3)

Yuma Supersite

AZ

9

Ascarate Park Southeast C37

TX

9

Odessa Gonzales C1014

TX

8

Eagle Pass C319

TX

7

South Phoenix

AZ

6

Thirty Third

AZ

6

Hidden Valley

AZ

6

El Paso UTEP C12

TX

6

Hobbs Jefferson

NM

5

Mesa - Brooks Reservoir

AZ

5