“…Additionally presence of extensively used chelating agent ethylenediaminet etraacetic acid (EDTA) in varying aqueous environments and its subsequent effect onto increased metal species bioavailability including lead, is gaining attention as well (Swanson, 1984(Swanson, , 1985Riley et al, 1992;Vohra and Davis, 1998;Bargar et al, 1999;Kim and Ong, 1999;Palacios et al, 2002;Oviedo and Rodríguez, 2003;Xia et al, 2009). Though free aqueous phase lead species can be conveniently removed using traditional techniques such as metal precipitation, however, the presence of EDTA renders such processes either partially or completely ineffective because of a strong metal-chelate complex formation (i.e., lead-EDTA).…”