Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

9

Geronimo

AZ

8

El Paso UTEP C12

TX

7

Las Cruces ED

NM

6

Eagle Pass C319

TX

6

Yuma Supersite

AZ

6

Thirty Third

AZ

6

Ascarate Park Southeast C37

TX

6

Jefferson

NM

5

Anthony

NM

5