Site	State	PM AQI* (ug/m3)
Chamizal C41	TX	15
Yuma Supersite	AZ	11
El Paso UTEP C12	TX	9
Jefferson	NM	9
Anthony	NM	8
Nogales Post Office	AZ	8
Ascarate Park Southeast C37	TX	8
Socorro Hueco C49	TX	7
Orange Grove	AZ	7
North Valley	NM	7