Site	State	PM AQI* (ug/m3)
El Paso UTEP C12	TX	17
Nogales Post Office	AZ	12
Durango Complex	AZ	12
Ascarate Park Southeast C37	TX	11
Socorro Hueco C49	TX	11
South Phoenix	AZ	10
Chamizal C41	TX	10
Hidden Valley	AZ	10
Santa Teresa	NM	10
South Valley	NM	9