Site	State	PM AQI* (ug/m3)
Ascarate Park Southeast C37	TX	21
Nogales Post Office	AZ	19
Socorro Hueco C49	TX	17
Hidden Valley	AZ	15
West Phoenix	AZ	15
North Valley	NM	14
South Valley	NM	13
Durango Complex	AZ	13
South Phoenix	AZ	12
Orange Grove	AZ	12