Site

State

PM AQI* (ug/m3)

West Phoenix

AZ

14

South Phoenix

AZ

13

Chamizal C41

TX

11

Yuma Supersite

AZ

11

Nogales Post Office

AZ

11

Ascarate Park Southeast C37

TX

10

Tempe

AZ

10

Phoenix JLG Supersite

AZ

10

Eastwood

AZ

8

Socorro Hueco C49

TX

8