Site

State

PM AQI* (ug/m3)

South Phoenix

AZ

21

Durango Complex

AZ

20

Nogales Post Office

AZ

16

Chamizal C41

TX

16

West Phoenix

AZ

15

Ascarate Park Southeast C37

TX

13

South Valley

NM

12

Taos Fire Station

NM

11

Phoenix JLG Supersite

AZ

10

North Valley

NM

10