Alexandre Livet

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• Type de publi. : Pré-publication, Document de travail
• Date de publi. : 31/03/2022
• Auteurs : Clarisse Balland-Bolou-BiLucie CaronAnne RepellinLuis LeitaoAlexandre LivetSamir Abbad-AndaloussiJuliette Leymarie
• Organismes : laboratoire Eau Environnement et Systèmes Urbains

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Résumé : Current urban development guidelines favour renewal and densification of cities, emphasizing the necessity to redevelop urban wastelands. However, many such sites are polluted with heavy metals and metalloids (TE), radionuclides, hydrocarbons. As a result, wasteland reconversion implies initial soil decontamination. The cost of servicing, depolluting and decontaminating these wastelands, using conventional soil depollution techniques is exorbitant. Thus, phytotechnology techniques offer an alternative that is more in line with sustainable development issues (Bert et al. 2012). Although the latter have been extensively studied for more than 30 years, they are still emerging on the market for the treatment of polluted sites. In addition, they raise many unanswered questions on the mobility, bioavailability and transfer of pollutants between the different compartments (soil/water/plants/microflora/fauna) over a relatively long periods of time (more than 10 years). Also,&#160;&#160; maintenance and management practices on site during the process of depollution still are problematic, particularly the downstream usage of contaminated plant biomass.</p><p>Through the OBSOLU project (Urban Observatory for the Study of Anthropogenic Soils), the Val-de-Marne Departmental Council (CD94) wishes to evaluate new experimental approaches for the rehabilitation of an urban wasteland affected by multi-metallic pollution (La Pierre-Fitte site, Villeneuve-le-Roi, Val-de-Marne, France). The &#160;evaluation of the dynamics of metallic trace elements (TE) in the soil-water-plant-fauna continuum is carried out on four vegetated plots (planted either with native or introduced phytostabilizing plant species (<em>Agrostis capillaris, Festuca arundinacea, Lolium perenne</em>)) managed according to two different methods (harvested plant biomass either left in place &#160;or exported for composting). &#160;The objective is to assess over several years, the mobility of TE in the soil and their infiltration to the water table, in relation with 1) the presence of native or phytostabilizing plants, mycorrhizal or not, 2) of the type of management of the harvested plant biomass and 3) the biodiversity indices at the experimental sites. Initial TE analyses revealed the presence of lead, zinc, copper and nickel in high concentrations, distributed heterogeneously over the entire experimental site. Interestingly, one year into the experiment, this high level of pollution with TE does not seem to affect the plant and arthropod populations that show good biodiversity indices, compared to other polluted sites in Ile-de-France. All introduced phytostabilizing plant species surveyed were found to be mycorrhizal and phytostabilizing for lead, nickel and to a lesser extent copper. So did certain native species, such as <em>Solidago canadensis</em>. Only zinc, an acknowledged mobile element, does not seem to be stabilized in the rhizosphere of the plants, either native or introduced. At this point in this five-year long experiment, a detailed analysis of the initial characteristics of the site has been established. The preliminary results indicate that phytostabilization could be limit TE dispersal in the environment, a conclusion that will be reassessed over the years. ;Key word : metallic trace elements - phytostabilisation - urban wasteland - rehabilitation</p>

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• Type de publi. : Article dans une revue
• Date de publi. : 03/06/2021
• Auteurs : Xavier LaffrayKamal ToulaïbClarisse Balland-Bolou-BiMatthieu BagardLuis LeitaoDavid HuguenotVanessa AlphonseSamir Abbad-AndaloussiAlexandre LivetNoureddine BousserrhineJuliette LeymarieAnne Repellin
• Organismes : Institut d'écologie et des sciences de l'environnement de Paris Institut d'écologie et des sciences de l'environnement de Paris Laboratoire Eau Environnement et Systèmes Urbains Institut d'écologie et des sciences de l'environnement de Paris Institut d'écologie et des sciences de l'environnement de Paris Institut d'écologie et des sciences de l'environnement de Paris Institut d'écologie et des sciences de l'environnement de Paris
• Publié dans Environmental Science and Pollution Research le 22/10/2020

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2021
• Auteurs : Ewan CouicVanessa AlphonseAlexandre LivetStéphanie Giusti-MillerNoureddine Bousserrhine
• Organismes : Géosciences Rennes Laboratoire Eau Environnement et Systèmes Urbains Laboratoire Eau Environnement et Systèmes Urbains Institut d'écologie et des sciences de l'environnement de Paris Laboratoire Eau Environnement et Systèmes Urbains
• Publié dans Applied Sciences le 13/02/2023

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Résumé : As rehabilitation efforts in Guyana are recent, there is little information on the effect of different ecological rehabilitation protocols for Guyana's mining sites on biogeochemical cycles and mercury mobility. This study was conducted to assess the impact of different ecological restoration protocols on soil quality with the use of soil microbial indicators and by estimating the mercury mobility. We sampled soil from six rehabilitated mining sites in French Guyana with different ecological restoration procedures. We carried out measurements of enzymatic activities and an analysis of mercury environmental speciation to assess its potential toxicity according to a mobility gradient. The results obtained in this study show that the rehabilitation of mining sites has been carried out in a heterogeneous manner and soil quality is very variable, even in nearby sites. Sites that have been rehabilitated with fabaceous species have positive soil quality indicators. In addition, the results highlight a change in mercury mobility that is 82.1% correlated after co-inertia analysis with soil texture properties, which also confirms a direct effect of rehabilitation on mercury mobility. The non-restored sites had a much higher potential of mercury mobility and toxicity than the sites where ecological restoration was successful. These results highlight the positive effect of controlled rehabilitation and ecological restoration on microbiological activities and the potential toxicity of mercury.

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Fichiers liés : applsci-11-02231-v2.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 09/03/2020
• Auteurs : Lou Brou Cécile KouaméNatchia AkaEmile B. Bolou-BiBi Tié Albert GoulaAlexandre LivetClarisse Balland-Bolou-Bi
• Organismes : laboratoire Eau Environnement et Systèmes Urbains
• Publié dans International Journal of Sciences le 10/03/2016

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Résumé : Lagoon water as sources of trace metals contamination in Tilapia fish as well as the physico-chemical parameters controlling the bioaccumulation of trace metals were determined in the Ebrié lagoon. For this, trace metals contents (Cd, Zn, Cu, Cr, Ni and Pb) were measured in the water, sediments and flesh of the tilapia fish of the Ebrié lagoon. In addition, physico-chemical parameters (pH, salinity, dissolved oxygen and redox potential) were determined in the lagoon waters during two hydrological seasons: the dry season and the rainy season. The results obtained showed that the sediments of the Ebrié lagoon constituted a real trap for the studied trace metals (very high Rd). The bioaccumulation factors (BAFs) of all trace metals in lagoon water column were higher than those of the sediments, reflecting an intense bioaccumulation, from the water column (BAF water > 1> BAF sed). However for Cd, the BAF water and BAF sed values were less than 1. Zn was the most bioaccumulated metal in fish, while the lowest bioaccumulated Cd. The decrease in dissolved oxygen favored the increase of Cr contents in tilapias and the retention of Zn in sediments. The increase of the pH as well as the decrease of the redox potential had led to the decrease of the Ni contents in the Tilapias. Nevertheless, the fish flesh Tilapias of the lagoon Ebrié, was not toxic to consumers.

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Fichiers liés : Kouame 2020 a.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2020
• Auteurs : Marouane MkhininiIteb BoughattasVanessa AlphonseAlexandre LivetStéphanie Gıustı-MıllerMohamed BannıNoureddine Bousserrhıne
• Organismes : Laboratory of Biochemistry and Environmental Toxicology Laboratory of Biochemistry and Environmental Toxicology Laboratoire Eau Environnement et Systèmes Urbains Laboratoire Eau Environnement et Systèmes Urbains Institut d'écologie et des sciences de l'environnement de Paris Laboratory of Biochemistry and Environmental Toxicology Laboratoire Eau Environnement et Systèmes Urbains
• Publié dans Agricultural Water Management le 17/02/2023

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• Type de publi. : Communication dans un congrès
• Date de publi. : 31/07/2019
• Auteurs : Paul-André DeleuLaurence ChezeRaphaël DumasJean-Luc BesseThibaut LeemrijseBernhard Devos BevernageAlexandre Naaim
• Organismes : Laboratoire de Biomécanique et Mécanique des Chocs Laboratoire de Biomécanique et Mécanique des Chocs Laboratoire de Biomécanique et Mécanique des Chocs Service de chirurgie orthopédique et traumatologique, centre Livet Foot & Ankle Institute Foot & Ankle Institute Laboratoire de Biomécanique et Mécanique des Chocs

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Résumé : The present study evaluates the 3D angle between the joint moment and the joint angular velocity vectors and investigates if the ankle, Chopart and Lisfranc joints are predominantly driven or stabilized during gait. The 3D angle curves show that the three joints adapt a stabilization-resistance configuration during the stance phase, except at pre-swing with all joints in a propulsion configuration.

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2019
• Auteurs : Iteb BoughattasSabrine HattabVanessa AlphonseAlexandre LivetStéphanie Giusti-MillerHamadi BoussettaMohamed BanniNoureddine Bousserrhine
• Organismes : Laboratoire Eau Environnement et Systèmes Urbains Laboratoire Eau Environnement et Systèmes Urbains Institut d'écologie et des sciences de l'environnement de Paris Laboratoire Eau Environnement et Systèmes Urbains
• Publié dans Journal of Soils and Sediments le 12/05/2021

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• Type de publi. : Rapport
• Date de publi. : 01/01/2018
• Auteurs : Jean-Philippe ChimierEmmanuelle CoffineauPhilippe GardèreAlexandre FontaineJérôme LivetGrégory PoitevinFrançoise Yvernault
• Organismes : Cités, Territoires, Environnement et Sociétés Institut national de recherches archéologiques préventives Institut national de recherches archéologiques préventives De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie

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Résumé : Les sondages réalisés place de la Mairie à Chouzy-sur-Cisse, commune de Valloire-sur-Cisse, ont révélé d’importants vestiges stratifiés, des maçonneries et des structures en creux. Ils couvrent toute la surface concernée par l’aménagement (environ 2000 m²) et sont ponctuellement oblitérés par des aménagements récents, en particulier des caves. Les occupations relèvent d’une longue période quasi continue, de l’Antiquité à nos jours. La principale occupation concerne le Moyen Âge, plus particulièrement la fin de la période jusqu’au début du XVIe s.

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• Type de publi. : Article dans une revue
• Date de publi. : 01/01/2018
• Auteurs : Ewan CouicMichel GrimaldiVanessa AlphonseClarisse Balland-Bolou-BiAlexandre LivetStéphanie Giusti-MillerMax SarrazinNoureddine Bousserrhine
• Organismes : laboratoire Eau Environnement et Systèmes Urbains Institut d'écologie et des sciences de l'environnement de Paris laboratoire Eau Environnement et Systèmes Urbains laboratoire Eau Environnement et Systèmes Urbains laboratoire Eau Environnement et Systèmes Urbains Institut d'écologie et des sciences de l'environnement de Paris UMR LAMA (Laboratoire des moyens analytiques de Cayenne) laboratoire Eau Environnement et Systèmes Urbains
• Publié dans Environmental Science: Processes & Impacts le 31/10/2020

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• Type de publi. : Chapître d'ouvrage
• Date de publi. : 01/01/2018
• Auteurs : Marouane MkhininiIteb BoughattasHamadi BoussettaVanessa AlphonseAlexandre LivetStéphanie Gıusti-MillerMohamed BanniNoureddine Bousserrhine
• Organismes : Laboratory of Biochemistry and Environmental Toxicology Laboratoire Eau Environnement et Systèmes Urbains Laboratory of Biochemistry and Environmental Toxicology Laboratoire Eau Environnement et Systèmes Urbains Institut d'écologie et des sciences de l'environnement de Paris Laboratoire Eau Environnement et Systèmes Urbains Institut d'écologie et des sciences de l'environnement de Paris Institut d'écologie et des sciences de l'environnement de Paris Laboratoire Eau Environnement et Systèmes Urbains Institut d'écologie et des sciences de l'environnement de Paris

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