Dernières publications

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Urban pathways of biocides towards surface waters during dry and wet weathers: Assessment at the Paris conurbation scale
Claudia Paijens, Adèle Bressy, Bertrand Frère, Damien Tedoldi, Romain Mailler, Vincent Rocher, Pascale Neveu, Régis Moilleron
, Elsevier, 2021, 402, pp.123765. ⟨10.1016/j.jhazmat.2020.123765⟩
Intra- and inter-site variability of soil contamination in road shoulders – Implications for maintenance operations
Damien Tedoldi, Rayan Charafeddine, Philippe Branchu, Eric Thomas, Marie-Christine Gromaire
, Elsevier, In press, ⟨10.1016/j.scitotenv.2020.144862⟩
Fluorescence excitation/emission matrices as a tool to monitor the removal of organic micropollutants from wastewater effluents by adsorption onto activated carbon
Ronan Guillossou, Julien Le Roux, Angélique Goffin, Romain Mailler, Gilles Varrault, Emmanuelle Vulliet, Catherine Morlay, Fabrice Nauleau, Sabrina Guérin, Vincent Rocher, Johnny Gasperi
, IWA Publishing, 2021, 190, pp.116749. ⟨10.1016/j.watres.2020.116749⟩
The NORMAN Association and the European Partnership for Chemicals Risk Assessment (PARC): let's cooperate!
Valeria Dulio, Jan Koschorreck, Bert van Bavel, Paul van den Brink, Juliane Hollender, John Munthe, Martin Schlabach, Reza Aalizadeh, Marlene Agerstrand, Lutz Ahrens, Ian Allan, Nikiforos Alygizakis, Damia’ Barcelo’, Pernilla Bohlin-Nizzetto, Susanne Boutroup, Werner Brack, Adèle Bressy, Jan Christensen, Lubos Cirka, Adrian Covaci, Anja Derksen, Genevieve Deviller, Milou Dingemans, Magnus Engwall, Despo Fatta-Kassinos, Pablo Gago-Ferrero, Félix Hernández, Dorte Herzke, Klara Hilscherova, Henner Hollert, Marion Junghans, Barbara Kasprzyk-Hordern, Steffen Keiter, Stefan Kools, Anneli Kruve, Dimitra Lambropoulou, Marja Lamoree, Pim Leonards, Benjamin Lopez, Miren Lopez de Alda, Lian Lundy, Jarmila Makovinská, Ionan Marigómez, Jonathan Martin, Brendan Mchugh, Cécile Miège, Simon O’toole, Noora Perkola, Stefano Polesello, Leo Posthuma, Sara Rodriguez-Mozaz, Ivo Roessink, Pawel Rostkowski, Heinz Ruedel, Saer Samanipour, Tobias Schulze, Emma Schymanski, Manfred Sengl, Peter Tarábek, Dorien ten Hulscher, Nikolaos Thomaidis, Anne Togola, Sara Valsecchi, Stefan van Leeuwen, Peter von der Ohe, Katrin Vorkamp, Branislav Vrana, Jaroslav Slobodnik
, 2020, 32 (1), ⟨10.1186/s12302-020-00375-w⟩
An experimentally-determined general formalism for evaporation and isotope fractionation of Cu and Zn from silicate melts between 1300 and 1500 °C and 1 bar
Paolo Sossi, Frederic Moynier, Robin Treilles, Marwane Mokhtari, Xiang Wang, Julien Siebert
, Elsevier, 2020, ⟨10.1016/j.gca.2020.08.011⟩


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Internship offer for summer 2020 (master’s degree) : Measurement of nutrient fluxes at the water-sediment interface of an urban lake employing different techniques => STAGE POURVU / INTERNSHIP OFFER PROVIDED

par Administrateur, Daniel Thevenot - publié le

Internship offer for Master’s student (1st year) in 2020 at Leesu : Measurement of nutrient fluxes at the water-sediment interface of an urban lake employing different techniques

Scientific background

Climate change increases the risks of eutrophication and pollution of resources. Higher temperatures promote both algae growth and oxygen depletion in shallow water bodies such as lakes and rivers. These factors are constantly affecting the use of water and the ecosystem health in many ways : interruption of drinking water production, health risks related to agricultural and livestock production, prohibition of fishing and recreational activities. In addition, the waterbody anoxia can result in the release of pollutants, such as carbon, ethane and nitrous oxide from the sediment.

The main physical, biological and chemical mechanisms related to nutrient and micropollutants cycles in aquatic ecosystems are known, but their empirical quantification in an ecosystem remains unclear or insufficient. As a result, the trigger and the drivers of rapid processes, such as algae bloom, cannot be predicted or quantified.

The dynamics at the water-sediment interface is governed by a wide range of processes, including the turbulent transport. The contribution of turbulence to benthic fluxes is poorly understood, due to a lack of instruments that would combine the following criteria : being non-invasive, presenting high temporal resolution and encompassing a wide range of possible substances for analysis.

Internship objective

Within the AquaREA project, a partnership between École des Ponts ParisTech (France), AgroParisTech (France) and the University of Landau (Germany), we are developing a sampling system for turbulent benthic fluxes based on the micrometeorological technique known as Relaxed Eddy Accumulation.

The objective of the internship is to compare different techniques for benthic flux estimation simultaneously with the developed technique. This approach will provide an empirical estimation of the effect of turbulence on the measured fluxes. The intern will employ two techniques, the benthic chamber and the diffusive equilibration in thin films, both well established. The measurements will take place at Lake Champs-sur-Marne (Marne-la-Vallée), close to Ecole des Ponts ParisTech premises, under the supervision of a PhD student.

Student profile required

  • M1 or summer internship
  • Scientific and mathematical background, statistics and basic programming and coding for data analysis
  • A particular enthusiasm for field and experimental work
  • Driver’s license valid in France

Practical information

The expected duration of the internship is of three months.

The location of the internship is at the research group Water, Environment and Urban Systems (LEESU in French) at Ecole des Ponts ParisTech, 6-8 avenue Blaise Pascal, F-77420 Champs-sur-Marne, France.

The intern will be granted 554.40 € a month (the computation is based on the exact number of working days). Half the monthly travel ticket of the regional public transport network will be refunded upon request. The intern will be admitted to the cafeteria for meals and will benefit from the Ecole des Ponts ParisTech electronic resources, including the digital library.


The internship will be supervised by Bruno Lemaire, lecturer in hydrology at AgroParisTech, and Guilherme Calabro, PhD student at Ecole des Ponts ParisTech.


If you are interested, please send your CV and application letter before the February 20th to : Bruno Lemaire (bruno.lemaire[at] and Guilherme Calabro (guilherme.calabro-souza[at]