Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

26

Yuma Supersite

AZ

9

Odessa Gonzales C1014

TX

8

El Paso UTEP C12

TX

7

Ascarate Park Southeast C37

TX

7

Geronimo

AZ

7

Thirty Third

AZ

7

Mesa - Brooks Reservoir

AZ

6

North Phoenix

AZ

6

Coachline

AZ

6