PCBs and DDTs in Stenella coeruleoalba dolphins from the French Mediterranean coastal environment (2007-2009): Current state of contamination

• Published in: Marine Pollution Bulletin
• Main Authors: Wafo, Emmanuel, Risoul, Véronique, Schembri, Thérèse, Lagadec, Véronique, Dhermain, Frank, Mama, Chacha, Portugal, Henri
• Other Authors: Aix Marseille Université (AMU), Laboratoire de chimie bactérienne (LCB), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), Institut Pythéas (OSU PYTHEAS), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut de Recherche pour le Développement (IRD), Clinique Vétérianire (Redon), Partenaires INRAE, Nutrition, obésité et risque thrombotique (NORT), Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Institut National de la Santé et de la Recherche Médicale (INSERM), French organization "Agence de l'Eau Rhone-Mediterranee et Corse"
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2012
• Subjects: Polychlorinated biphenyls; Organochlorinated compounds; Stenella coeruleoalba dolphins; Mediterranean Sea; WHALES BALAENOPTERA-PHYSALUS; REPRODUCTIVE TRANSFER; BLUBBER; SEA; DDT; ORGANOCHLORINE PESTICIDES; MARINE MAMMALS; CETACEANS; RESIDUES; FIN; ACCUMULATION; [SDV]Life Sciences [q-bio]; Balaenoptera physalus
• Online Access: https://hal.inrae.fr/hal-02646929; https://doi.org/10.1016/j.marpolbul.2012.07.034

International audience Organochlorinated compounds including PolyChloroBiphenyles, Dichloro-DiphenylTrichloroethan and metabolites are determinated in Stenella coeruleoalba (n = 37) stranded on the french Mediterranean coasts from 2007 till 2009. Studies are carried out on lung, muscle, kidney, liver, and blubber. The sought-after compounds are all detected to variable levels in each tissue and organ. In general, total PCBs are the most abondant, followed by total DDTs. The concentration (in ng g(-1) of lipid weight) in blubber of S. coeruleoalba, varied from 2,052 to 158,992 for PCBs and from 1,120 to 45,779 for DDTs. The ratios DDE/tDDTs are higher than 80% in almost all samples. The overall results of this work, compared to previous studies concerning the Mediterranean Sea, seems to confirm the tendency to a decrease of the contamination by organics compounds for the cetaceans in the Western Mediterranean Sea. (C) 2012 Elsevier Ltd. All rights reserved.