Site

State

PM AQI* (ug/m3)

West Phoenix

AZ

25

South Phoenix

AZ

25

Durango Complex

AZ

24

North Valley

NM

21

Chamizal C41

TX

21

Tempe

AZ

20

Phoenix JLG Supersite

AZ

19

Ascarate Park Southeast C37

TX

19

Casa Grande Downtown

AZ

19

Glendale Community College

AZ

18