Laboratoire Eau Environnement et Systèmes Urbains (Leesu)

Recent publications

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Time-varying microplastic contributions of a large urban and industrial area to river sediments
E. Dhivert, J. Pruvost, T. Winiarski, Johnny Gasperi, F. Delor-Jestin, Bruno Tassin, B. Mourier
, 2024, 347, pp.123702. ⟨10.1016/j.envpol.2024.123702⟩
COVID lockdown significantly impacted microplastic bulk atmospheric deposition rates
Max Beaurepaire, Johnny Gasperi, Bruno Tassin, Rachid Dris
, 2024, 344, pp.123354. ⟨10.1016/j.envpol.2024.123354⟩
Fate of nitrogen in French human excreta: Current waste and agronomic opportunities for the future
Thomas Starck, Tanguy Fardet, Fabien Esculier
, 2024, 912, pp.168978. ⟨10.1016/j.scitotenv.2023.168978⟩
Supporting the Design of On-Site Infiltration Systems: From a Hydrological Model to a Web App to Meet Pluriannual Stormwater Volume Reduction Targets
Jérémie Sage, Emmanuel Berthier, Marie-Christine Gromaire, Ghassan Chebbo
, 2024, 29 (3), ⟨10.1061/JHYEFF.HEENG-6092⟩
The role of turbulence in the deposition of intrinsically buoyant MPs
Marziye Molazadeh, Guilherme Calabro-Souza, Fan Liu, Bruno Tassin, Lorenzo Rovelli, Andreas Lorke, Rachid Dris, Jes Vollertsen
, 2024, 911, pp.168540. ⟨10.1016/j.scitotenv.2023.168540⟩

Supervisory authorities

Member of

Cleo Ninja Stratmann

PhD student at Leesu, ENPC

PhD student at Leesu, ENPC

1. Contact

Contact: cleo.stratmann(AT)

Phone :

Laboratoire Eau environnement et Systèmes Urbains (Leesu), École nationale des ponts et chaussées (ENPC), 6-8 avenue Blaise Pascal, F77420 Champs sur Marne

Office P111

Orchid profile

2. Research topics

  • Investigation of microplastic source fluxes in the Seine river of the greater Paris catchment and the influence of agricultural sites.
  • Development of harmonised microplastic sampling methods in rivers and freshwaters, estimation and modelling of microplastic fluxes

PhD advisors : Bruno Tassin, Johnny Gaspéri, Rachid Dris

3. Research in progress

LimnoPlast- “Microplastics in Europe’s freshwater ecosystems: From source to solutions” is supported by the European Union’s Horizon 2020 research and innovation programme (Marie Skłodowska-Curie Actions Innovative Training Network) and comprises 15 PhD students.

My thesis title is: “Monitoring and modelling microplastics in the greater Paris and the river Seine”.

4. Current teaching

5. Collective responsibilities

6. Professional background

Period Position
January - June 2021 Participant to the Scripps-Rady Ocean Plastic Pollution Challenge
September 2020 - Preparation of a PhD thesis entitled: “Monitoring and modelling microplastics in the greater Paris and the river Seine”) at Leesu, ENPC - Advisors: Bruno Tassin, Johnny Gaspéri, Rachid Dris
May 2018 - June 2020 Urban Algae project, project leader coordinating 30 teams across Europe to execute a water sampling campaign, designing a citizen survey
August 2017 - January 2019 Netherlands Institute of Ecology, Wageningen, The Netherlands, Early stage researcher: experiments on water rehabilitation and climate extremes, planning and conducting mesocosm and microcosm experiments and international research collaboration
December 2015 - August 2017 Leibniz-Institute for Freshwater Ecology and Inland Fisheries, Berlin, Germany, Research assistant and prior internship: large-scale mesocosm experiments, interdisciplinary collaborations, laboratory work for water analyses (nutrients, green-house gases, enzyme kinetics, phytoplankton) Projects MARS and ILES
January 2014 - December 2016 Engineering office “Manfred Kanthak - Consulting and Problem-solving in the Field of Waste Management”, Berlin, Germany, Project engineer: assessment of material flows from waste treatment plants, analysis of various waste fractions
October 2012 - March 2016 Master of science Environmental Science and Technology - Technical University of Berlin, Germany - Thesis: “Enzyme Activity in Response to Multiple Stressors in Lakes”
February - June 2014 Universitat Polytècnica de Catalunya, Barcelona, Spain, ERASMUS-student: Coastal zone planning and management, new perspectives on material science and technology
October 2007 - December 2012 Bachelor of Science Environmental Science and Technology, Technical University of Berlin, Germany: Landscape ecosystems, life-cycle assessments, urban ecology, air quality - Thesis (using ArcGIS): “GIS-Analysis of the Indonesian Palm Oil Industry as a Tool for Integrated Environmental Planning”.

Scientific production, on HAL-ENPC, ordered by type