“…These surfactants enter into the environment through the discharge of sewage effluents (Becagli et al, 2011;Schramm et al, 2003;Ying, 2006) and can increase the solubility of organic/inorganic matter (e.g., pollutants) in water systems, reduce water quality, and cause eutrophication, thereby endangering planktonic species (Castro et al, 2005;Comber et al, 1993;Razak et al, 2012;Wurl and Obbard, 2004;Ying, 2006). Recent studies have shown that surfactants are an important subgroup of anthropogenic pollutants in the SML, and might pose a higher threat to the biota in the SML than pollutants in the sub-surface water (SSW) Razak et al, 2012;Roslan et al, 2010).…”