Site	State	PM AQI* (ug/m3)
Lancaster DW	PA	28
Chesterfield	SC	23
Greenville-ESC	SC	18
SOMERST	KY	17
Isla Blanca C323/C667	TX	17
MIDAIR	KY	16
Maple Falls-Azure Way	WA	16
NO. BHAM	AL	16
Irmo	SC	16
MENDNHAL	NC	15