Laboratoire Eau Environnement et Systèmes Urbains (Leesu)

Recent publications

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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⟩

Supervisory authorities

Member of

Microplastic research internship at Leesu

by Daniel Thevenot - published on , updated on

Microplastic research internship at Leesu starting July-August 2021 (3-6 months)

Internship proposal summary

  • Duration: ca. 3-6 months
  • Start: July/August 2021
  • Research group: Laboratoire Eau Environnement et Systèmes Urbains (LEESU**) at École des Ponts ParisTech - **Laboratory for water, environment and urban systems
  • Supervision: The intern will be working with the PhD students Minh-Trang NGUYEN and Cleo STRATMANN.
  • Internship revenue from ENPC: ca. 600 € per month
  • Application until: 9 July 2021

*We encourage ERASMUS internships (please see guidelines here)

We offer an internship in the two projects mentioned below for several months, ideally starting in June or July 2021. You should be interested in the topic of microplastics and eager to learn about the sampling and analysis of microplastics in freshwaters. More details are given below.

Project:

Two PhD projects (ESR 4 and 11) assess the abundance and impacts of microplastics in waters of the Paris agglomeration, including the Parisian river “Seine” and the Parisian Wastewater systems since mid-2020 in the frame of the LimnoPlast project (ITN EU-funded project). LimnoPlast involves 15 PhD projects across Europe to investigate the sources, pathways and impacts of microplastics in freshwater environments.

Mandatory skills required:

  • Bachelor or Master student in enviornmental sciences, chemistry, evnironmental chemistry, hydrology and similar subjects
  • Physically present at the working place (If you need to move, we will support you to find appropriate housing)
  • Fluent English (spoken and written), minimum level B2
  • A strong motivation for laboratory and field work
  • Being familiar with Microsoft Excel.

Additional skills which would be convenient:

  • French language skills
  • Driver’s licence permit in France (European Union) and the motivation to drive within the Parisian agglomeration
  • Able to help with physical field work
  • Previous experience in the field of microplastics and/or water sampling
  • Previous laboratory experiences
  • Previous field work experiences

The work you will be doing with us and what you can expect to learn and experience during the internship:

You will analyse microplastics in freshwater and wastewater from sampling to laboratory analysis and data presentation, and contribute to the discussion of the results.

  • Involvement in the assessment of microplastics upstream and downstream of Paris
  • Involvement in the investigation of microplastics in the Parisian wastewater system
  • You will learn crucial aspects of microplastic field work
  • Sampling of microplastics and other related water parameters (e.g. river flow rate or suspended sediments)
  • Laboratory sample processing of water and sludge samples including filtration, chemical digestion with H202, and density separation
  • Analyse microplastic samples with state-of-the-art methods (ATR-FTIR and μFTIR)
  • Post-analysis identification of microplastic particles using software like siMPle.

Please be aware that the occasional field work may be physically demanding (various weather conditions, carrying equipment, driving) and can last longer than a normal 8 -9 h working day, due to traffic and a few hours of travel time in the region. The field work is usually very exciting and fun.

Filter with microplastic particles at Leesu
Cleo STRATMANN, Leesu, ENPC
Field sampling of microplastic particles at Leesu
Cleo STRATMANN, Leesu, ENPC



If you have any other questions, please don’t hesitate to ask. You can simply send us an Email with the topic “plastic internship”:

We encourage everyone who fulfills the requirements and is interested in this project to apply. Our team welcomes everyone.

*Please make sure that you fulfill the mandatory requirements stated above.

Application in English:

  • Curriculum Vitae (CV)
  • Short motivation letter (max. 1 page) to explain your interest and skills
  • Include your contact information (Full name, email-adress)
  • Include your availability and any other important information

To apply, please send by email the documents (as PDF-files or Word-files), using as email header: “plastic internship”, to:

Internship proposal (PDF)

View online : LimnoPlanst EU Research Project site