Laboratoire Eau Environnement et Systèmes Urbains (Leesu)

Recent publications

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936.
titre
Position paper: Common mistakes and solutions for a better use of correlation- and regression-based approaches in environmental sciences
auteur
Damien Tedoldi, Boram Kim, Santiago Sandoval, Nicolas Forquet, Bruno Tassin
article
, 2025, 192, pp.106526. ⟨10.1016/j.envsoft.2025.106526⟩
titre
Do suspended particles matter for wastewater-based epidemiology?
auteur
Gauthier Bernier-Turpin, Régis Moilleron, Chloé Cenik, Fabrice Alliot, Sabrina Guérin-Rechdaoui, Thomas Thiebault
article
, In press, 280, pp.123543. ⟨10.1016/j.watres.2025.123543⟩
titre
The effect of the mineral matrix during thermal analysis of polymers:Implications for microplastics characterization
auteur
Clémentine Ricard, François Baudin, Maria-Fernanda Romero-Sarmiento, Nicolas Bouton, Yoann Copard, Lucas Friceau, Victor Lieunard, Wolfgang Ludwig, Sébastien Rohais
article
, 2025, pp.107219. ⟨10.1016/j.jaap.2025.107219⟩
titre
Plastic debris dataset on the Seine riverbanks: up to 38 000 pre-production plastic pellets reported per square meter
auteur
Romain Tramoy, Laurent Colasse, Johnny Gasperi, Bruno Tassin
article
, 2025, pp.111735. ⟨10.1016/j.dib.2025.111735⟩
titre
La persistance des champs d’épandage d’eaux usées de l’agglomération parisienne au cours du second XXe siècle
auteur
Etienne Dufour
article
, 2025, ⟨10.56698/metropolitiques.2174⟩

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, UPEC

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.