Site	State	PM AQI* (ug/m3)
Nogales Post Office	AZ	15
El Paso UTEP C12	TX	12
North Valley	NM	10
Yuma Supersite	AZ	9
Chamizal C41	TX	9
Jefferson	NM	9
South Valley	NM	9
Ascarate Park Southeast C37	TX	8
Thirty Third	AZ	8
South Phoenix	AZ	8