Laboratoire Eau Environnement et Systèmes Urbains (Leesu)

Dernières publications

--> Url version détaillée , Url version formatée Structure name contains or id is : "409065;155441;135971;102266;212248;578082", Publication type : "('ART')"
935.
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
Water Research, In press, 280, pp.123543. ⟨10.1016/j.watres.2025.123543⟩
titre
Opinion of the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) on the risks to human health associated with the proliferation of Ostreopsis spp. on the Basque coast
auteur
Rodolphe Lemée, Jean‐françois Humbert, Éric Abadie, Zouher Amzil, Elisa Berdalet, Ronel Biré, Marie‐yasmine Dechraoui Bottein, Luc de Haro, Nicolas Delcourt, Valérie Fessard, Jean‐philippe Jaeg, César Mattei, Anne Oppliger, Anne‐sophie Pavaux, Eva Ternon, Gilles Bornert, Anne Togola, Jean Baron, Jean‐luc Boudenne, Nicolas Cimetiere, Bruno Coulomb, Christophe Dagot, Sabine Denooz, Isabelle Dublineau, Frédéric Feder, Matthieu Fournier, Stéphane Garnaud-Corbel, Nathalie Garrec, Johnny Gasperi, Julio Gonçalvès, Jean‐louis Gonzalez, Olivier Horner, Michel Joyeux, Jérôme Labanowski, Sophie Lardy-Fontan, Françoise Lucas, Christophe Mechouk, Laurent Moulin, Damien Mouly, Fabienne Petit, Catherine Quiblier, Pauline Rousseau-Gueutin, Marie‐pierre Sauvant-Rochat, Michèle Tremblay, Bruno Le Bizec, Marie‐louise Scippo, Pierre‐Marie Badot, Marie‐yasmine Dechraoui Bottein, Rachida Chekri, Christine Demeilliers, Virginie Desvignes, Erwan Engel, Gautier Eppe, Anne‐sophie Ficheux, Eric Houdeau, Emilie Lance, Olivier Laprevote, Michel Laurentie, Ludovic Le Hegarat, Jean‐charles Leblanc, Nicolas Loiseau, David Makowski, Francesca Mancini, Eric Marchioni, Jean‐françois Masfaraud, Mathilde Munier, Isabelle Oswald, Anne Platel, Yann Sivry, Paule Vasseur, Estelle Checlair-Westerberg, Eléonore Ney, Nathalie Arnich, Carole Catastini
article
Food Risk Assess Europe, 2025, 3 (2), ⟨10.2903/fr.efsa.2025.FR-0061⟩
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
Data in Brief, 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
Métropolitiques, 2025, ⟨10.56698/metropolitiques.2174⟩
titre
Stock and vertical distribution of microplastics and tire and road wear particles into the soils of a high-traffic roadside biofiltration swale
auteur
Max Beaurepaire, Tiago de Oliveira, Johnny Gasperi, Romain Tramoy, Mohamed Saad, Bruno Tassin, Rachid Dris
article
Environmental Pollution, 2025, 373, pp.126092. ⟨10.1016/j.envpol.2025.126092⟩

Tutelles

Membre de

OSS-Cyano


The OSS-Cyano project (2014-2018) is funded by the French Research Agency (ANR Program ECO-TS). Six public laboratories (iEES, LEESU, ESE, IFSTTAR, MNHN and CEREP) and one environmental engineering company (ARTELIA) are participating to the project.

Contact at Leesu : Brigitte Vinçon-Leite
bvl@leesu.enpc.fr

Cyanobacteria blooms frequently disturb the functioning of freshwater ecosystems, due to the toxins that cyanobacteria are able to synthesize. Therefore, many countries have implemented monitoring programs aimed at reducing the risk of human exposure to these toxins. The main limitation is related to the heterogeneity of the spatial distribution of cyanobacteria. In the vertical dimension, these micro-organisms can remain in specific layers of the water column and in the horizontal scale, the cells may accumulate in somes areas of the water body, driven by winds or currents.
Many research projects have been conducted in order to develop new monitoring tools, like buoys developed during the program PROLIPHYC (ANR PRECODD). This tool is highly relevant but it does not allow assessing the horizontal distribution of cyanobacteria and its cost remains rather expansive.
In addition, if satellite remote sensing can be considered very useful for estimating the horizontal distribution of cyanobacteria biomass in a water body, the cost of this technology makes it unaffordable for routine monitoring.

In this context, the OSS-Cyano project aims to develop and validate a new, low-cost aerial sensor, to be used in a fixed single location, or deployed in network, to detect the presence of cyanobacteria in a water body. In addition, OSS-Cyano also aims to implement a drone capable of carrying the sensor to perform spatial measurements on large water bodies or river sections, and other instruments for water sampling or for performing underwater measurements.


Test of the IFSTTAR drone over Lake Grand-Lieu (Loire Atlantique, Photo Ifsttar)

The technical development of the sensor (wavelength selection, influence of natural processes on the measurements ...) and of the drone system (implementation of an adaptive platform for supporting the measuring equipments) are conducted on 2 main study sites. The first one is the PLANAQUA experimental platform which provides all the required facilities to carry out tests of the sensor on a range of aquatic systems, from microcosm to macrocosm.
The second study site is Lake Champs-sur-Marne, where the sensor can be tested in real conditions of application. Based on the data set collected in Lake Champs-sur-Marne, a 3D hydrodynamic model, using data from inlake sensors and from the aerial sensor is implemented in order to forecast short-term changes of the spatial dispersion of cyanobacteria in the water body.
More details on Lake Champs-sur-Marne

OSS-Cyano Field Survey

Lake Champs-sur-Marne

Lire la suite