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Approche moléculaire quantitative appliquée à l'étude du transfert de micropolluants organiques à la confluence entre la Fensch et la Moselle (France)

Abstract : According to the objectives of the Water Framework Directive, this study deals with the quantification of the transfer of organic micropollutants at the confluence between Fensch and Moselle Rivers. A new methodology has been developed in order to quantify the anthropogenic pressure in environmental matrices. Based on the exhaustive quantification of molecular markers, this approach allows the comparison between natural and anthropogenic inputs and the differentiation between anthropogenic sources (pyrogenic, petrogenic, sewage waters). It is fully appropriate in order to study organic matter in different environmental matrices providing much more information than the quantification of few target compounds. In sediments of the system Fensch-Moselle, this approach has been applied in order to study the evolution of the anthropogenic pressure due to organic micropollutants along the Fensch River, their transfer at the confluence with the Moselle River and the major sources of contamination. This work highlights the relationship between hydrodynamism and settling and biodegradation of organic micropollutants. Together with the mutimolecular approach, two methodologies have been developed in order to answer to major environmental questionings. The first one, based on the deconvolution of unresolved complex mixture, allows quantifying the amount of petroleum by-products stored in sediments. The second one is based on the analysis of organic micropollutants in aqueous phases (dissolved, colloidal, particulate) during mobilization of contaminated sediments, which allows the evaluation of their bioavailability.
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https://tel.archives-ouvertes.fr/tel-01752857
Contributor : Laurent Jeanneau <>
Submitted on : Monday, January 28, 2008 - 4:28:39 PM
Last modification on : Monday, November 9, 2020 - 2:44:07 PM
Long-term archiving on: : Friday, April 30, 2010 - 12:23:44 AM

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  • HAL Id : tel-01752857, version 2

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Laurent Jeanneau. Approche moléculaire quantitative appliquée à l'étude du transfert de micropolluants organiques à la confluence entre la Fensch et la Moselle (France). Géochimie. Institut National Polytechnique de Lorraine - INPL, 2007. Français. ⟨NNT : 2007INPL094N⟩. ⟨tel-01752857v2⟩

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