Monitoring of Pb Contamination in Loire Estuary: Trends, Distribution and Isotopic composition
| Type | Poster | ||||||||||||
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| Date | 2014-05-01 | ||||||||||||
| Language | English | ||||||||||||
| Other localization | http://www.egu2014.eu/ | ||||||||||||
| Author(s) | Brach-Papa Christophe1, Chiffoleau Jean-Francois1, Knoery Joel 1, Chouvelon Tiphaine1, Auger Dominique1, Bretaudeau-Sanjuan Jane1, Crochet Sylvette1, Rozuel Emmanuelle1, Thomas Bastien1, Vasileva Emilia2, Oriana Anna Maria2 |
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| Affiliation(s) | 1 : IFREMER, OSUNA, Biogeochemistry and Ecotoxycologie Unit, Nantes, France 2 : IAEA, Environment Laboratories, Monaco, Principality of Monaco |
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| Meeting | EGU - European Geosciences Union - General Assembly 2014, 27 April – 02 May 2014, Vienne, Autriche | ||||||||||||
| Abstract | The Loire River is one of the largest river systems in Western Europe and a major source of continental inputs to the marine environment in the Bay of Biscay. Its catchment area drains agricultural and industrial zones and its estuary is increasingly urbanized. Even if the Loire River is not considered as a highly polluted system, studies have shown estuarine Pb contamination due to industrial inputs and combustion of leaded gasoline until the mid 1990’s. A retrospective study, based on the analysis (Pb levels and isotopic composition) of mussel samples collected by the French mussel watch program (RNO/ROCCH) has highlighted this contamination and its trend between 1985-2005 (Couture et al., 2010). This poster furthers the work initiated by Couture et al. Here, Pb levels and isotopic signatures in samples from the environmental sample bank from RNO/ROCCH over the last 10 years will be presented and confronted to measurements of other environmental samples. |
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