Site	State	PM AQI* (ug/m3)
Hidden Valley	AZ	39
South Valley	NM	29
Yuma Supersite	AZ	24
North Valley	NM	23
Chamizal C41	TX	22
Jefferson	NM	20
Ascarate Park Southeast C37	TX	19
Nogales Post Office	AZ	17
Del Norte	NM	17
Thirty Third	AZ	17