Site

State

PM AQI* (ug/m3)

Hanover-NF-4204 T

NM

263

Hidden Valley

AZ

39

Chamizal C41

TX

21

Ascarate Park Southeast C37

TX

21

Anthony

NM

16

Nogales Post Office

AZ

16

South Valley

NM

15

Socorro Hueco C49

TX

14

Durango Complex

AZ

14

North Valley

NM

13