Site	State	PM AQI* (ug/m3)
Ascarate Park Southeast C37	TX	15
Chamizal C41	TX	11
Yuma Supersite	AZ	10
Socorro Hueco C49	TX	10
Geronimo	AZ	9
South Phoenix	AZ	8
Tempe	AZ	8
Nogales Post Office	AZ	8
Big Bend NP	TX	7
Durango Complex	AZ	7