Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

13

Jefferson

NM

11

North Valley

NM

10

South Valley

NM

9

Amarillo Texas A&M C320

TX

8

West Phoenix

AZ

8

Geronimo

AZ

8

Socorro Hueco C49

TX

8

Odessa Gonzales C1014

TX

7

Eagle Pass C319

TX

7