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January 1994 - present
January 1994 - present
Publications
Publications (257)
Urban areas concentrate on human activities that generate large amounts of waste. A small fraction is mismanaged and ends up on urban surfaces and eventually in waterways. The fraction reaching waterways is usually estimated using poorly constrained data, while litter density on urban surfaces and its subsequent transfer dynamics are also poorly do...
Les environnements terrestres ont récemment été désignés comme la source principale de la pollution plastique liée aux milieux aquatiques (rivières, océans, etc.), mais peu d'études étayent cette hypothèse. La problématique des déchets abandonnés sur les surfaces urbaines et transférés via les réseaux pluviaux est pourtant une problématique de long...
This data paper presents microplastic (MP) concentration and composition data from four campaigns in a one-year period in the Seine River within the Greater Paris area. Detailed data on MP occurrence, physical water parameters, hydrological conditions, and potential sewer point sources are presented. Initial analysis of the data set shows that MP c...
Urban areas constitute a major hotspot of litter, including plastic litter, that stormwater can wash off towards waterways. However, few studies quantified and characterized litter densities in urban areas and fluxes transported by stormwater networks. Moreover, little information is available on litter transport dynamics in stormwater, and on the...
Plastic pollution has become one of the most pressing global environmental issues, raising concerns about potential impacts on the environment, organisms and humans. Microplastics (MPs) were found in most water compartments, while nanoplastics (NPs) have recently been detected in environmental samples, thanks to methodological advances. The presenc...
The quantification of microplastic (MP) pollution in rivers is often constrained by a lack of historical data on a multi-decadal scale, which hinders the evaluation of public policies. In this study, MP contents and trends were analyzed in dated sediment cores sampled upstream and downstream of a large metropolis, in environmental deposits that exh...
During wet weather events, combined sewer overflows (CSOs) transfer large amount of particulate matter and associated pollutants into surrounding water bodies, thereby deteriorating the recipients’ ecological health. Resuspension of sewer sediments during these events contributes significantly to pollution level of these discharges. However, how mu...
During wet weather events, combined sewer overflows (CSOs) transfer large amount of particulate matter and associated pollutants into surrounding water bodies, thereby deteriorating the recipients’ ecological health. Resuspension of sewer sediments during these events contribute significantly to pollution level of these discharges. However, how muc...
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. À l’image de ce qui...
This poster aims to give insights in the PhD study investigating the contamination and fate of smaller-sized MPs (25-300 µm) in rivers near anthropogenic environments and, specifically, to determine the level of MP contamination and the potential contribution by urban agglomerations in the Seine River catchment in Greater Paris.
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...
Microplastics (MP) have been detected in almost all matrices, including drinking water, and assessing the contamination of drinking water with this type of pollution is of the utmost sanitary importance. This study aims to evaluate MP contamination of inlet river water and drinking water at three drinking water treatment plants (DWTPs) in the Paris...
Les microplastiques (MP) sont des particules polymérisées de taille inférieure à 5 mm. Ils ont été détectés dans toutes les matrices environnementales y compris récemment dans l’eau potable. Les concentrations en MP et le risque lié à ces particules sont aujourd’hui encore mal connus. Cet état de l’art se focalise sur la présence des MP dans l’eau...
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...
Pyrolysis-GC/MS is increasingly used to quantify microplastics (MP) in environmental samples. In general, prior to analysis, purification steps are carried out to reduce the environmental matrix in sediment samples. The conventionally used protocol of density separation followed by digestion of organic matter does not allow for complete isolation o...
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...
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...
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...
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...
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...
Microplastics contaminating drinking water is a growing issue that has been the focus of a few recent studies, where a major bottleneck is the time-consuming analysis. In this work, a micro-optofluidic platform is proposed for fast quantification of microplastic particles, the identification of their chemical nature and size, especially in the 1–10...
Microplastics (MPs) and microfibers (MFs) in stormwater have been poorly investigated. Data on their intra and inter rain events variability over time are still sparse. For the first time, the variability of microlitter concentrations in stormwater has been studied. MF and MP concentrations were investigated in stormwater runoff at the outlet of th...
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...
While microplastics (MPs) have been studied since the beginning of the century, their occurrence in the atmospheric compartment was only described recently. Based on 33 published papers, this work reviews the literature on microplastic pollution in the air and in atmospheric deposition. Methodologies are examined and compared, along with main resul...
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'...
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...
European stakeholders engaged in combatting the eutrophication of the North Sea welcomed three
Water Framework Directive innovations: a more holistic approach to quality, the binding nature of WFD objectives, and greater public participation. Twenty years later, however, there has been a disappointing amount of progress in the reduction of diffuse...
As microplastic (MPs) studies grow, environmental concerns of all kinds of fibers are currently investigated. However, there is a gap in data regarding the impacts of digestion protocols on fibers integrity. This work focuses on the impact of five commonly used digestion protocols on the seven most produced fibers in traditional textile: three synt...
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...
Stormwater and combined sewer overflows (CSO) might represent an important source of macro and microplastics in the environment, but such fluxes are poorly investigated. In order to fill this knowledge gap, macro and microplastic concentrations were investigated (i) in stormwater and grid refusals at the outlet of a runoff water pipe located in Suc...
Nowadays, microplastic (MPs) pollution is well documented in marine ecosystems since the first publication alarming about marine plastic pollution in 1972 [1]. Similarly, continental contamination is more and more investigated. More recently, interest for estuarine systems is growing. Estuaries are considered as a suspected predominant pathway for...
This paper deals with the clogging phenomenon due to the calcite precipitation in the railway drain systems along high speed lines (HSL). The clogging of the drainage system could affect the geometric properties of the track. A HSL site affected by calcite clogging was monitored with various sensors in the aim of analysing the factors which play a...
In France, up to 450km of underground drain along High-speed-line (HSL) is affected by calcite precipitation, risk of being totally clogged today or after couples of years. Dysfunction of these drains causes the mechanical loss of the track bases. The current unsatisfied maintenance becomes more and more costly, while the kilometers of the clogged...
L'obstruction des dispositifs de drainage des plateformes ferroviaires par entartrage est une cause majeure de réduction de leur fonctionnalité sur le réseau ferré national français. Suite à l'étude du phénomène dans l'environnement ferroviaire, un système d'aide à la décision est proposé pour évaluer le risque de précipitation carbonatée, sa quant...
Many studies have been conducted to quantify microplastic contamination, but only a few of them have actually the sampling methodology and associated uncertainties. This study seeks to examine the influence of sampling strategy on the confidence interval of river microplastic estimates. 16 samples are collected in the Gave de Pau River (southwester...
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...
Dans un système de récupération et d’utilisation de l’eau de pluie, le premier volume de ruissellement de toiture pendant l’événement pluvial est susceptible de contenir la plus grande partie des éléments polluants. Pour confirmer cette assertion, il est nécessaire d’étudier la qualité initiale et l’évolution de la qualité au cours de l’événement d...
Anthropogenic fibers, gathering synthetic fibers, artificial fibers and natural fibers are ubiquitous in the natural environment. Tremendous concentrations of anthropogenic fibers were previously measured in the tropical Saigon River (Vietnam), i.e. a river impacted by textile and apparel industries. In the present study, we want to examine the rol...
Plastic pollution, especially microplastics (MP) pollution, is a hot topic in both mainstream media and scientific literature. Although rivers are potentially the major transport pathway of this pollution to the sea, plastic contamination in freshwater bodies is comparatively understudied. Microplastic pollution in freshwater fish is of growing int...
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...
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...
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...
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...
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....
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...
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...
Land-based macroplastic is considered one of the major sources of marine plastic debris. However, estimations of plastic emission from rivers into the oceans remain scarce and uncertain, mainly due to a severe lack of standardized observations. To properly assess global plastic fluxes, detailed information on spatiotemporal variation in river plast...
This document proposes a methodology for assessing the quality of water distribution service in the context of intermittent supply, based on a comparison of joint results from literature reviews and feedback from drinking water operators who had managed these networks, with standards for defining the quality of drinking water service. The paper beg...
Soils are playing a central role in the transfer and accumulation of anthropogenic pollutants in urbanized regions. Hence, this study aimed at examining the contamination levels of selected soils collected within and around the Paris conurbation (France). This also evaluated factors controlling contamination. Twenty-three trace and major elements a...
Anthropogenic particles (APs) are a very broad category of particles produced directly or indirectly by human activities. Their ingestion by biota is well studied in the marine environment. In contrast, studies on AP ingestion in wild freshwater organisms are scarce despite high contamination levels in some rivers and lakes. In this study, we aimed...
Cet ouvrage apporte aux gestionnaires de l’eau et de l’assainissement, et plus largement aux autres services des collectivités (voirie, bâtiment…), une vision globale sur les enjeux liés aux micropolluants dans les eaux urbaines. En dressant un état des lieux de leur présence, des sources émettrices, de leurs caractéristiques intrinsèques et de leu...
Processed fibers are highly present in our daily life and can be either natural, artificial (regenerated cellulose) and synthetic (made with petrochemicals). Their widespread use lead inevitably to a high contamination of environment. Previous studies focus on plastic particles regardless of their type or shape as long as they are comprised between...
The annual production of plastic textile fibers has increased by more than 6% per year, reaching 60 million metric tons, about 16% of world plastic production. The degradation of these fibers produces fibrous microplastics (MPs). Such MPs have been observed in atmospheric fallouts, as well as in indoor and outdoor environments. Some fibrous MPs may...
Since the beginning of the 2010s, the number of investigations on microplastics in freshwater increased dramatically. However, almost no study aims at investigating the various sources and fate of microplastics in a catchment. This chapter aims at analyzing the various sources and fate of microplastics for an urban catchment and its hydrosystem (se...
Ce fascicule « micropolluants organiques » porte sur les alkylphénols, le bisphénol A, les résidus pharmaceutiques avec un focus sur les antibiotiques et les composés perfluoroalkylés dans le bassin de la Seine. Il se structure en trois parties : (1) chapitre 1 : alkylphénols et bisphénol A, (2) résidus médicamenteux et antibiotiques, (3) composés...
The booming construction industry has led to many environmental and occupational health and safety problems. Construction dust caused irreversible damage to the health of frontline workers and polluted the surrounding air environment, which has attracted the attention of researchers and practitioners. In this study, to systematically sort and analy...
Plastic pollution is a growing concern worldwide but was mainly focused on the marine environment. Few studies dealt with plastic pollution in lakes and rivers and the associated biota. In our study, we aimed to evaluate plastic occurrence in three target tissues (stomach contents, liver and muscle) of a wild freshwater fish (the chub Squalius ceph...
Urban lakes provide many ecosystem services, e.g., flood control, nature prot