background preloader

Les anguilles de l'estuaire de la Gironde et la contamination ch

Facebook Twitter

GREENPEACE 27/09/06 Des anguilles en eaux troubles - La pollution chimique renforce la disparition des anguilles Européennes. Le rapport, « Anguille sous REACH: la présence de composés perfluorés dans les anguilles (anguilla anguilla) de 11 pays européens », révèle que les anguilles européennes, autrefois nombreuses et dont la population décline aujourd'hui, sont largement contaminées par les composés perfluorés (PFC), une source de préoccupation grandissante due à la toxicité de ces substances et leur dissémination dans l'environnement.

GREENPEACE 27/09/06 Des anguilles en eaux troubles - La pollution chimique renforce la disparition des anguilles Européennes

Les PFC sont utilisés pour traiter moquettes, textiles et peintures contre les tâches, pour produire des revêtements antiadhésif pour les poêles et se retrouvent à l'intérieur des emballages de fast food et de pop-corn destinés aux fours à micro-ondes. Parmi les enseignes utilisant les PFC on trouve Gore-Tex vêtements de randonnée, Stainmaster traitement anti tâches pour moquettes et Teflon ustensiles anti-adhésifs. Les PFC sont également largement utilisés dans certains processus de fabrication et dans les mousses anti feu. Environmental Pollution, In Press, Corrected Proof, Available online 24 February 2010 hirty year monitoring of PCBs, organochlor. Environmental Pollution - MAI 2010 - Persistent organic pollutants (PCB, DDT, HCH, HCB & BDE) in eels (Anguilla anguilla) in Sco.

Environment International, In Press, Corrected Proof, Available online 13 November 2010 What can we learn from monitoring PCBs i. Abstract Between 2000 and 2007 pooled muscle tissue samples of the European eel (Anguilla anguilla) from 48 sites in Flanders (Belgium) were analysed for 30 polychlorinated biphenyl (PCB) congeners.

Environment International, In Press, Corrected Proof, Available online 13 November 2010 What can we learn from monitoring PCBs i

There was a large variation between individual sites (range 11–7752 ng/g wet weight (ww) for the sum of the ICES 7 PCBs), eels from the River Meuse basin (mean 1545 ng/g ww) being considerably more polluted than those from the River Scheldt (615) and IJzer (61) basins. Overall, PCB 153, PCB 138 and PCB 180 were the most prominent congeners, however PCB patterns varied between the monitored locations. Analysis of the weight percentage of congeners demonstrates obvious differences in PCB composition between sites, indicating differential sources of pollution.

Considering the levels of the Sum 7 PCBs, eels are not compliant with the Belgian legal limits for consumption (75 ng/g ww) in 71% of the sites. Research Highlights Keywords Copyright © 2010 Elsevier Ltd. Chemosphere 21/01/11 PBDE and PCB contamination of eels from the Gironde estuary: From glass eels to silver eels. Abstract Since the 1980s, the eel population has been decreasing dangerously.

Chemosphere 21/01/11 PBDE and PCB contamination of eels from the Gironde estuary: From glass eels to silver eels

Persistent Organic Pollutants (POPs) such as Polychlorinated Biphenyls (PCBs) are one of the suspected causes of this decline. A preliminary study of PCB contamination carried out on different fish from the Gironde estuary (southwest of France, Europe) has shown a relatively high level of contamination of eel muscles. In order to characterize the contamination level of PCBs and PBDEs (PolyBrominated Diphenyl-Ethers) in eels from this estuary more than 240 eels were collected during the years 2004–2005 in the Gironde estuarine system, from glass eels to silver eels.

Individual European eels were grouped according to length and localization sites. Research highlights Keywords Eel stages; Polychlorinated Biphenyls; PolyBrominated Diphenyl-Ethers; Estuary Copyright © 2011 Elsevier Ltd. Science of The Total Environment, In Press, Corrected Proof, Available online 28 June 2011 Reproduction of European eel jeopardi.

Abstract Dioxins, furans and dioxin-like polychlorinated biphenyls (PCBs) were analysed in muscle tissue from yellow phased European eel (Anguilla anguilla) from 38 sites in Belgium.

Science of The Total Environment, In Press, Corrected Proof, Available online 28 June 2011 Reproduction of European eel jeopardi

Dioxin concentrations in eel vary considerably between sampling locations, indicating that yellow eel is a good indicator of local pollution levels. Measured levels of dioxin-like PCBs are much higher than those of the dioxins and furans. In the majority of the sites, eel has levels considered to be detrimental for their reproduction. Field levels of dioxin and dioxin-like PCBs are therefore suggested as an additional causal factor contributing to the decline of the European eel. 42% of the sampling sites show especially dioxin-like PCB levels exceeding the European consumption level (with a factor 3 on average). SUD OUEST 02/10/12 L'anguille sous contrôle - La limitation de la commercialisation et de la consommation des poissons de fond s. Ept ans après la mise en évidence d'une contamination aux PCB (polychlorobiphényles) des anguilles dans l'estuaire de la Gironde, on cerne le phénomène avec de plus en plus de précision.

SUD OUEST 02/10/12 L'anguille sous contrôle - La limitation de la commercialisation et de la consommation des poissons de fond s

Ce qui permet de desserrer un tantinet l'étau des interdictions de consommation et de commercialisation qui se sont multipliées depuis 2009 sur le bassin Adour-Garonne. Le 27 juillet dernier, l'Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (Anses) a remis à plat ses recommandations sur le sujet. AFP 12/09/12 Les anguilles de l'Ariège, pleines de PCB, interdites à la consommation. UNIVERSITE DE BORDEAUX - 2011 - Thèse en ligne : Etude Ecotoxicologique des impacts des Contaminations Métalliques et Organiques.