Organochlorine pesticides and PCB residues in sediments of Alexandria Harbour, Egypt

Inputs of antifouling paint-derived dichlorodiphenyltrichloroethanes (DDTs) to a typical mariculture zone (South China): Potential impact on aquafarming environment

“…These results suggested that heavy DDT pollution was mainly derived from the use of antifouling paints around the fishing harbor. Similar results have been reported previously (Lee et al, 2001;Barakat et al, 2002;Hong et al, 2006Hong et al, , 2008Lin et al, 2009) that concentrations of DDTs in coastal harbor sediments decreased from the harbor centers to the outside locations.…”

Spatial budgetary evaluation of organochlorine contaminants in the sediments of Cochin Estuary, India

“…The ratio of (DDE + DDD)/ P DDT > 1 in majority of the stations infers that the contaminant levels of DDT's in the sediments of CES may have been derived from the aged and weathered agricultural soil and retained under anaerobic conditions within the sediment phase. The dominance of DDD's over DDE's clearly supports the reductive dechlorination of DDT's to DDD under anaerobic conditions and similar observations reported earlier (Barakat et al, 2002). The results of anoxic behavior of sediments from the study area was in good concurrence with the previous work of Akhil et al, 2013 andManju et al, 2013.…”

Characterisation of the dynamics of organic contaminants ( n -alkanes, PAHs and PCBs) in a coastal area

“…The absence of CB-28 and CB-52 can be explained by the fact that the congeners with 2-3 chlorine atoms and selected biodegradation profile are less prominent in commercial mixtures of PCBs compared to those tetra-, penta-, hexa-and heptachloro biphenyls. Despite being banned in 1980 because of their widespread use in transformers, electrical equipment and other industries in several countries (Barakat et al, 2002), previous studies have reported their presence in the environment, i.e., in the Marseille coast (Wafo et al, 2006;Syakti et al, 2012). Fig.…”