Romain Tramoy

Romain Tramoy
Université Paris-Est Créteil Val de Marne - Université Paris 12 | UPEC · Laboratoire Eau, Environnement, Systèmes Urbains (LEESU) - UMR-MA 102

PhD

About

41
Publications
8,529
Reads
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382
Citations
Citations since 2016
36 Research Items
369 Citations
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Introduction
As a geologist, I worked mainly on paleoclimates and diagenesis of organic matter using sedimentology and isotope geochemistry. Today, I want to face our future and the needed ecological transition by first working on macro plastic waste in the Seine river.
Additional affiliations
September 2017 - present
Université Paris-Est Créteil
Position
  • Researcher
Description
  • Plastic pollution in rivers. Fluxes and transfer dynamics. 2017-2020 Macroplast project 2020-2022 Plastoc project
September 2016 - August 2017
Sorbonne Université
Position
  • ATER
June 2016 - August 2016
University of Namur
Position
  • PostDoc Position
Education
October 2007 - June 2012
University of Burgundy
Field of study
  • Geology, sedimentology, palaeoclimatology

Publications

Publications (41)
Article
The quantification of macroplastic fluxes transferred by rivers toward the pelagic environment requires a better understanding of macrodebris transfer processes in estuarine environments. Following the strategy adopted in the Seine estuary, this study aims to characterize macroplastic trajectories in the Loire estuary. Between January 2020 and July...
Experiment Findings
Full-text available
Article
Full-text available
Land-based sources of riverine macrolitter are now recognized as a major concern, but few field data on litter amount, composition and sources are available. This is especially the case for macrolitter hotspots like high frequented roadways that could generate large amount of macrolitter potentially reaching rivers. This dataset provides macrolitte...
Article
Many researches mention the need to identify the land-based sources of riverine macrolitter but few field data on litter amount, composition and sources are available in the scientific literature. Describing macrolitter hotspot dynamics would actually allow a better estimation of fluxes in the receiving environments and a better identification of t...
Article
Full-text available
Pourquoi le nombre de publications scientifiques sur les plastiques a-t-il explosé sur les 7-8 dernières années ? Pourquoi le nombre d’équipes à travers le monde investies dans la recherche sur les plastiques a-t-il crû également de manière exponentielle ? Pourquoi une majorité de travaux est-elle issue du monde des sciences de la nature et se foca...
Article
Full-text available
Small urban rivers are thought to be major sources of riverine litter, especially macroplastics, into the ocean. In well-developed countries, waste management infrastructures and recovery systems are sometimes implemented to prevent their emission into the sea meeting environmental and economic goals. The Huveaune River in Marseille, South of Franc...
Article
La quantification des flux de macroplastiques transférés par les fleuves fait l'objet de plus en plus d'études scientifiques mais une meilleure appréciation de ces flux nécessite une compréhension fine de la dynamique de transfert de ces déchets en milieu estuarien, interface entre le milieu continental et le milieu océanique. A l'image de ce qui a...
Article
Studies on the influence of hydrodynamic conditions on anthropogenic microfiber (MF) and microplastic (MP) distributions in freshwater environments are sparse. In this study, we studied the influence of urbanisation gradient on the spatial variability of MFs and MPs. Temporal variability was also assessed by comparing the concentrations and fluxes...
Article
Macroplastic emissions from the Seine estuary to the English Channel were estimated using institutional cleaning of riverbanks, combined with a tagged litter experiment. Cleaning were performed between March 2018 and April 2019 by the non-profit company Naturaul'un over 19 sites covering 20 km of riverbanks. A total of 365 tagged litter (90% macrop...
Article
Stormwater possibly represents a significant input for plastic debris in the environment; however, the quantification and composition of plastic debris and other macrolitter in stormwater are not available in literature and the amounts discharged into freshwater have been poorly investigated. To obtain a better understanding, the occurrence, abunda...
Book
Full-text available
Le fascicule 3.7 « La pollution plastique en estuaire de Seine : dynamique, imprégnation environnementale et impact sur le vivant » propose une synthèse des travaux scientifiques menés ces dernières années sur la pollution micro et macroplastiques de l'estuaire de la Seine et une mise en perspective vis-à-vis d'autres acquisitions de données. Il s'...
Article
The dynamics of plastic debris were assessed in the Seine River, especially in the estuary, using plastic bottles equipped with GPS-trackers. In one year, 50 trajectories were recorded, covering a wide range of hydro-meteorological conditions. Results show a succession of stranding/remobilization episodes in combination with alternating upstream an...
Experiment Findings
The composite trajectory was based on 3 different GPS-trajectories that were aggregated. GPS-trajectories were obtained using a GPS-tracker (Inetis) sealed into plastic bottles
Experiment Findings
Full-text available
The composite trajectory was based on 3 different GPS-trajectories that were aggregated. GPS-trajectories were obtained using a GPS-tracker (Inetis) sealed into plastic bottles
Experiment Findings
Full-text available
A GPS-tracker (INETIS; https://inetis.fr/) was sealed into a 1L plastic bottle made of HDPE with a wide opening. It was released in Jumiège in the Seine estuary in October 2018 and tracked for 1 month with GPS.
Chapter
Full-text available
For over 30 years, the sources and the transfer dynamics of micropollutants have been investigated in the PIREN-Seine programme. Recent works included a wide range of chemicals and biological contaminants of emerging concern (i.e. contaminants whose occurrence, fate and impact are scarcely documented). This chapter presents a brief overview of rese...
Article
Rivers are a major pathway for plastics between lands and the ocean. At the land-ocean interface, estuaries make the transfer dynamic of plastics complex and nonlinear. That is why very little is known about this dynamic. In this respect, a specific marker (i.e. Microlax packaging) showing date-prints was systematically investigated in different ri...
Article
Full-text available
Rivers transport land-based plastic waste into the ocean. Current efforts to quantify riverine plastic emission come with uncertainty as field observations are scarce. One of the challenging aspects is the lack of consistent measurement methods that allow for comparing rivers over space and time. Recent studies have shown that simple visual observa...
Article
Global estimations state that between 0.5 and 12.7 million metric tons of plastic enter the oceans each year. They are, however, associated with great uncertainties due to methodological difficulties to accurately quantify land-based plastic fluxes into the oceans. New studies at basin scale are thus needed for better model calibrations. Here, a mo...
Article
Global estimations state that between 0.5 and 12.7 million metric tons of plastic enter the oceans each year. They are however associated with great uncertainties due to methodological difficulties to accurately quantify land-based plastic fluxes into the oceans. New studies at basin scale are thus needed for better model calibrations. Here, a mode...
Article
Full-text available
Plastic pollution in oceans and rivers is of high concern because of its persistence in the environment and its potential impact on ecosystems. However, there is a specific lack of data in rivers. Here we present data from the Seine river banks in a historical polluted shore. Data were classified using international MSFD and OSPAR classifications....
Article
Des estimations globales établissent des flux de plastiques entrant en mer entre 1 et 10 millions de tonnes chaque année. Mais elles sont associées à de grandes incertitudes liées à des difficultés méthodologiques pour quantifier les flux de plastiques du continent vers les océans. Travailler à l’échelle des bassins versants s’avère nécessaire afin...
Article
Global estimations state between 1 and 10 million metric tons of plastic entering the oceans each year. But, they are associated with great uncertainties due to methodological difficulties to accurately quantify plastic fluxes from continent into oceans. New studies at basin scale are thus needed to improve model calibrations. Here, a modelling app...
Book
For over 30 years, the sources and the transfer dynamics of micropollutants have been investigated in the PIREN-Seine programme. Recent works included a wide range of chemicals and biological contaminants of emerging concern (i.e. contaminants whose occurrence, fate and impact are scarcely documented). This chapter presents a brief overview of rese...
Article
The effect of early diagenesis on carbon and, especially, nitrogen isotopes (d13C and d15N) of organic matter is not well understood and is of interest for accurate paleoenvironmental reconstructions. Wood samples were incubated in distilled water and river water to assess the effects of early diagenesis on carbon and nitrogen dynamics. Elemental c...
Chapter
During the Early Jurassic, major palaeoclimatic changes, associated with large carbon-cycle perturbations, occurred at the Pliensbachian–Toarcian boundary. Although the detailed marine palaeoclimatic record of this time interval and its impact on the marine biota is well recorded, much less is known about the continental realm. The current study do...
Article
The Taskomirsay section (South Kazakhstan) is a unique Pliensbachian-Toarcian sequence of lignites, clayey layers and silty-sandstones deposited in a fluvial/lacustrine environment with nearby swampy areas. This period, characterized by a drastic climate change, has been particularly studied in Western Tethyan marine environments, whereas very few...
Article
The Eocene–Oligocene transition (EOT, ~34Ma) is the largest global cooling of the Cenozoic Era and led the Earth's climatic system to change from a greenhouse to an icehouse mode. Although it is well documented in marine settings, the few studies focusing on continental environments have demonstrated regional heterogeneities. The study core CDB1, l...
Thesis
Full-text available
Des études pionnières ont montré que la composition isotopique de l’azote de matières organiques terrestres (δ15Norg) est corrélée à des paramètres climatiques tels que les précipitations et la température. Appliqué à la matière organique ancienne, ce concept a permis récemment de reconstituer des cycles humides/secs à la transition Paléocène-Eocèn...
Article
Full-text available
A very high-resolution carbon and oxygen stable isotope analysis (bulk-carbonate) of a biostratigraphically well-constrained Callovian-Oxfordian series is provided here for the first time. The homogeneity of the clayey series and the weak diagenetic alteration allow the isotopic signal variations to be considered as primary in origin. A prominent a...
Conference Paper
Full-text available
High-resolution carbon and oxygen isotope data from the Paris Basin and the Subalpine Basin (France) are available in a precise biostratigraphic framework for the Callovian–Oxfordian stages. A biostratigraphically well-constrained δ13C curve, derived from bulk carbonates in the Paris Basin and the Subalpine Basin, is provided in order to document c...

Questions

Question (1)
Question
It has been shown that different populations of the same plant species can produce longer or shorter n-alkanes for their wax in response to water stress and/or temperature. I would like to know if one specimen at one site can modulate the chain-length of its n-alkane in response to seasonal environmental variation. It is for Paleoclimatic application (Lower Jurassic).
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Projects

Projects (5)
Project
The purpose of the Sritter project is to acquire knowledges on urban litter and on the inputs of urban litters (size > 1 cm) from urban runoff to the hydrological environment. This source could highly contribute to the fluxes of litter exported to rivers and consequently to oceans but there is a lack of knowledges on this contribution and on litter typologies. Carried out in collaboration with Nantes Metropole, the findings aim at helping the reflection on plastic pollution reduction and management strategies at Nantes territory. This reflection requires fieldwork to quantify the contribution of urban runoff to litter fluxes. Therefore, in continuity of the Plasti-nium project, one of the goals is to quantify litter densities and to identify their typologies in urban areas having different conditions of land cover, of traffic, etc. A second goal is to establish link between these densities and the fluxes exported by urban stormwaters. A third goal is to observe the evolution of these fluxes regarding different kind of cleaning operations. Funding: Région Pays de la Loire, Nantes Métropole and Citeo
Project
LITTERBANK - Plastic debris on the banks of the Seine - Questions about their storage dynamics, remobilisation and/or fragmentation The aim of the LitterBANK project, funded by GIP Seine Aval, is to support discussions and reflections on plastic waste management strategies within the Seine estuary by providing a better understanding of the dynamics of their deposition on the banks. A first objective is to propose a typology and a cartography that will allow to characterise the potential of the banks of the estuary for the accumulation of waste. To this end, the study of the processes of stranding and remobilisation of waste will be carried out on "dynamic" sites where the stock of waste is constantly renewed in relation to the tides and "sink" sites where the stock of waste increases over much longer time scales. Several complementary monitoring techniques (fixed point cameras, drone flights, waste marking) will be used. The link between the variables that characterise a bank (morphology, slope, vegetation, etc.) and the sensitivity to waste accumulation will be characterised for different hydrological conditions. This task will make it possible to draw up a typology of the determining factors in the accumulation of waste and may lead to concrete elements for the management of this waste on the scale of a river and its estuary. Furthermore, within the "sink" sites, it is assumed that the macroplastics that make up these deposits will gradually age under the action of UV light in particular, and fragment into microplastics. To verify this hypothesis, an evaluation of the impregnation of the banks of the Seine with microplastics (< 5 mm) will be carried out. This data will make it possible to assess whether certain stretches of riverbank may be a significant source of microplastics in the estuary.
Project
The Plasti-nium project - Plastic debris in the land-sea continuum - aims at studyng plastic pollution from the urban aeras to the sea and to create a transverse and interdisciplinary dynamic on this issue within the Pays de la Loire Region. The issue of plastic debris and more specifically microplastics (size < 5 mm) is nowadays highly publicised and has a significant resonance in our civil society. At the same time, the scientific community is demonstrating the negative impacts generated by this plastic pollution on ecosystems. As a result, governmental and other local and regional actions are multiplying. The Pays de la Loire region, as part of its 2018 "marine ambition" strategy, is specifically targeting plastic pollution, and specifies that very concrete reduction initiatives are already operational or about to be. Nantes Métropole, a recognised "Zero Waste, Zero Waste" territory, also supports experimental, innovative initiatives that contribute to a zero waste territory. Evaluating the implementation of these actions, whatever their form - from awareness-raising to integrated and concerted management at a territorial level - is a challenge. The Plasti-nium project aims to provide scientific support for these programmes, and to ensure that the acquisition of knowledge, its transfer and the actions of public policies are well articulated. This support can greatly contribute to the national and international influence of these initiatives. In this approach, the aim of the Plasti-nium project is to provide a framework for reflection and expertise to support the development and implementation of the regional waste prevention and management plan, with which the Region aims to be a leader in terms of waste management. Funding: Pays de Loire Region and Nantes Métropole