Site

State

PM AQI* (ug/m3)

Hidden Valley

AZ

25

Yuma Supersite

AZ

18

Thirty Third

AZ

14

Geronimo

AZ

11

Mesa - Brooks Reservoir

AZ

11

El Paso UTEP C12

TX

11

Durango Complex

AZ

10

West Phoenix

AZ

10

South Valley

NM

10

Coachline

AZ

10