“…Heptachlor residues or its biotransformation products have been found in various environmental and biological matrices and foods (Prado et al, 1998(Prado et al, , 2001(Prado et al, , 2004(Prado et al, , 2007P erez-Ruzafa et al, 2000;Konishi et al, 2001;Rojas et al, 2001;Bozada and Bejarano, 2006;Shen et al, 2007;Jiang et al, 2009;Castilla et al, 2010;Yu et al, 2011Yu et al, , 2010Avancini et al, 2013;DiPietro et al, 2013;Kim et al, 2009). Indeed, foodstuffs have been implicated as the main pathway of human exposure to heptachlor (CDC, 2013).…”