“…Lead (Pb), in particular, is one of the most common environmental contaminants due to its wide use in petroleum, mining, paint and pigments, ceramics and weapons industries. Its accumulation in the body may cause several pathological states, including brain damage, kidney failure and serious developmental, learning and behavioral problems in children (Needleman, 2004;Bellinger, 2008;Rowland and McKinstry, 2006). In addition, toxicity has been shown to occur at concentrations as low as 1 pM (Markovac and Goldstein, 1988;Johnston and Goldstein, 1998).…”