“…Specific studies for PCBs and other chlorinated compounds have documented their presence in sediments around the world (Pereira et al, 1996;Simcik et al, 1997;Sprovieri et al, 2007;Castells et al, 2008;Du et al, 2008;Gewurtz et al, 2008;Teng et al, 2008;Yang et al, 2009), as well as in fishes sold in many markets (Ohta et al, 2008). The highly toxic dioxins (polychlorinated dibenzo-p-dioxins (PCDDs)) and furans (polychlorinated dibenzofurans (PCDFs)) have also been detected in sediments (Kim et al, 2008;Pickard and Clarke, 2008;Moon et al, 2009) and in food . The flame-retarding PBDEs have been tracked in influents, particulate, sediments, sewage, and biota (De Boer et al, 2003;Oros et al, 2005;Roosens et al, 2008).…”