“…Among these pollutants, heavy metals, including zinc, lead to pollution all around the world. Zinc concentrations measured in coastal waters of unpolluted and polluted sites range from 0.3 to 300 lg/L (Bird et al, 1996;Terrés-Martos et al, 2002;Baudrimont et al, 2005;Daby, 2006;Hamed and Emara, 2006;El Ati-Hellal et al, 2007). However, extremely high zinc concentrations, ranging from 1.8 mg L À1 to 6 mg L À1 , have been reported in specific areas (Amado Filho et al, 1997;Srinivasa et al, 2005).…”