Site

State

PM AQI* (ug/m3)

South Phoenix

AZ

14

North Valley

NM

13

Eagle Pass C319

TX

13

Durango Complex

AZ

12

West Phoenix

AZ

11

Glendale Community College

AZ

10

Socorro Hueco C49

TX

9

Geronimo

AZ

9

Tempe

AZ

9

Nogales Post Office

AZ

9