Laboratoire Eau Environnement et Systèmes Urbains (Leesu)

Recent publications

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840.
titre
From reproductive behaviour to responses to predators: Ocean acidification does not impact the behaviour of an herbivorous marine gastropod
auteur
Sabine Roussel, Manon Coheleach, Sophie Martin, Rob Day, Aicha Badou, Sylvain Huchette, Philippe Dubois, Arianna Servili, Fanny Gaillard, Stéphanie Auzoux-Bordenave
article
, In press, 907, pp.167526. ⟨10.1016/j.scitotenv.2023.167526⟩
titre
Climate change and rivers: The promise offered by infrastructure
auteur
Julie Gobert
article
, 2023, 8, pp.100077. ⟨10.1016/j.totert.2023.100077⟩
titre
Think global-act local: the challenge of producing actionable knowledge on transboundary climate risks at the sub-national level of governance.
auteur
Carlo Aall, Tara Botnen Holm, Adeline Cauchy, Florence Rudolf, Katy Harris, Marta Jansen, Julie Gobert, Frida Lager, Blandine Arvis, Muriel Bour
article
, 2023, 5, ⟨10.3389/fclim.2023.1170142⟩
titre
A New Technique for Resolving Benthic Solute Fluxes: Evaluation of Conditional Sampling Using Aquatic Relaxed Eddy Accumulation
auteur
Guilherme Calabro-Souza, Andreas Lorke, C. Noss, P. Dubois, M. Saad, C. Ramos-Sanchez, R. Moilleron, Brigitte Vinçon-Leite, M. Jodeau, Bruno Lemaire
article
, 2023, 10 (9), pp.e2023EA003041. ⟨10.1029/2023EA003041⟩
titre
Reactivity of performic acid with organic and inorganic compounds: from oxidation kinetic to reaction pathways
auteur
Christelle Nabintu Kajoka, Johnny Gasperi, S. Brosillon, Emilie Caupos, Emmanuelle Mebold, Marcos Oliveira, Vincent Rocher, Ghassan Chebbo, Julien Le Roux
article
, 2023, 3 (9), pp.3121-3131. ⟨10.1021/acsestwater.3c00279⟩

Supervisory authorities

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Analytical and field equipment

 

The goal of our scientific and technical platform is to provide high-end equipment for addressing the scientific issues raised by our various research themes.

It includes analytical equipment for the determination of concentrations, sources and flows of organic, mineral and microbiological contaminants in urban systems under anthropic pressure.

Research projects need field equipment as well as accurate analytical instruments.

Our researchers thus have the possibility to use equipment for sample collection and in situ measurements (automatic samplers, equipped vehicles, osmosis system, sensors and probes), for the measurement of global parameters (ion chromatography, spectrophotometer and spectrofluorometer, dissolved organic carbon and elementary carbon analyzers) and for the measurement of trace organic and inorganic contaminants.

Leesu is equipped with sample preparation instruments (for liquids and solids) such as large volume filtration systems, automatic solid-phase extraction systems and microwave extraction system, digestors, centrifuge, DNA replicator or freeze dryer.

The platform also has high accuracy analytical instruments for the analysis of trace organic contaminants

(gas and liquid chromatography coupled to mass spectrometry: GC-MS, UPLC-MS/MS), for the measurement of trace metals (automatic titrators and potentiometers, inductive coupled plasma spectrometer: ICP-AES) and for the analysis of microbiological contaminants (microplates reader, PCR thermocycler, electrophoresis and imaging systems, fluorescent microscope).

The analytical platform is constantly improved depending on research needs and new methods are continually developed.

Plateforme PRAMMICS

MSE

Leesu is also part of the PRAMMICS platform from OSU Efluve. This analytical platform is located in the Maison des Sciences de l’Environnement of UPEC, with expertise in analytical chemistry in several fields studied by the 5 laboratories of OSU Efluve (LEESU, LISA, CERTES, CEREA, IEES PARIS).

The goal of the PRAMMICS platform is to gather analytical equipments dedicated to environmental monitoring of a large diversity of organic micropolluants (semi-preparative HPLC-UV, high resolution mass spectrometry: UPLC-IMS-QTOF, AOX analyzer), trace elements (ICP-MS) and biological contaminants (microplates reader, PCR thermocycler...) in water, air and soil matrices.