222 results on '"Ayrault, S."'
Search Results
2. Fate of antimony contamination generated by road traffic – A focus on Sb geochemistry and speciation in stormwater ponds
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Philippe, M., Le Pape, P., Resongles, E., Landrot, G., Freydier, R., Bordier, L., Baptiste, B., Delbes, L., Baya, C., Casiot, C., and Ayrault, S.
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- 2023
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3. Temporal trends of persistent organic pollutants in dated sediment cores: Chemical fingerprinting of the anthropogenic impacts in the Seine River basin, Paris
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Lorgeoux, C., Moilleron, R., Gasperi, J., Ayrault, S., Bonté, P., Lefèvre, I., and Tassin, B.
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- 2016
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4. Historical monuments and lead pollution: Lessons from the case of Notre-Dame de Paris and Sainte-Chapelle
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Briard, J., Ayrault, S., Baron, S., Bordier, L., Roy-Barman, M., Syvilay, D., Azéma, A., l'Héritier, M., Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Géochimie Des Impacts (GEDI), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de recherche des monuments historiques (LRMH), Centre de Recherche sur la Conservation (CRC ), Muséum national d'Histoire naturelle (MNHN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Université Paris 8 Vincennes-Saint-Denis (UP8), Archéologies et Sciences de l'Antiquité (ArScAn), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Archéologie de la Gaule : structures économiques et sociales (GAMA), and Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)
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[SDU]Sciences of the Universe [physics] - Published
- 2023
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5. Spatial and temporal variability of 7Be and 210Pb wet deposition during four successive monsoon storms in a catchment of northern Laos
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Gourdin, E., Evrard, O., Huon, S., Reyss, J.-L., Ribolzi, O., Bariac, T., Sengtaheuanghoung, O., and Ayrault, S.
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- 2014
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6. Comparison of Neutron Activation Analysis and ICP-MS used for river water pollution control
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Pinte, G., Veado, M. A. R., Oliveira, A. H., Khalis, M., Ayrault, S., Revel, G., Dumont, H. J., editor, Amiard, J.-C., editor, Le Rouzic, B., editor, Berthet, B., editor, and Bertru, G., editor
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- 1998
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7. Sedimentary record of metal contamination in the Seine River during the last century
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Le Cloarec, M.-F., Bonte, P.H., Lestel, L., Lefèvre, I., and Ayrault, S.
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- 2011
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8. Remanence of lead pollution in an urban river system: a multi-scale temporal and spatial study in the Seine River basin, France
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Ayrault, S., Le Pape, P., Evrard, O., Priadi, C. R., Quantin, C., Bonté, P., and Roy-Barman, M.
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- 2014
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9. Complementarity of analytical tools in biomonitoring studies
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Ayrault, S., Catinon, M., Clochiatti, R., Tissut, M., and Asta, J.
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- 2009
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10. Sensitivity of biomonitors and local variations of element concentrations in air pollution biomonitoring
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Senhou, A., Chouak, A., Cherkaoui, R., Moutia, Z., Lferde, M., Elyahyaoui, A., El Khoukhi, T., Bounakhla, M., Embarche, K., Gaudry, A., Ayrault, S., and Moskura, M.
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- 2002
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11. Comparison of 14 MeV-NAA, k0-NAA and ED-XRF for air pollution bio-monitoring
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Senhou, A., Chouak, A., Cherkaoui, R., Lferde, M., Elyahyaoui, A., El Khoukhi, T., Bounakhla, M., Embarche, K., Bertho, X., Gaudry, A., Ayrault, S., and Piccot, D.
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- 2002
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12. Multianalysis of trace elements in mosses with inductively coupled plasma-mass spectrometry
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Ayrault, S., Bonhomme, P., Carrot, F., Amblard, G., Sciarretta, M. D., and Galsomiès, L.
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- 2001
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13. Comparative use of INAA and ICP-MS Methods for Environmental Studies
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Revel, G. and Ayrault, S.
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- 2000
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14. Thorium uptake by wheat at different stages of plant growth
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Shtangeeva, I., Ayrault, S., and Jain, J.
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- 2005
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15. Air pollution biomonitoring survey in Morocco using k0-INAA
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El Khoukhi, T., Cherkaoui, R.M., Gaudry, A., Ayrault, S., Senhou, A., Chouak, A., Moutia, Z., and Chakir, E.
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- 2004
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16. Structure of copper-potassium hexacyanoferrate (II) and sorption mechanisms of cesium
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Loos-Neskovic, C, Ayrault, S, Badillo, V, Jimenez, B, Garnier, E, Fedoroff, M, Jones, D.J, and Merinov, B
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- 2004
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17. Determination of 237Np by k0 RNAA
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Piccot, D., Ayrault, S., and Gaudry, A.
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- 2002
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18. Street Dust: Source and Sink of Heavy Metals To Urban Environment
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Ayrault S., Catinon M., Boudouma O., Bordier L., Agnello G., Reynaud S., and Tissut M.
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Heavy metals ,Air pollution ,Pb isotopes ,dense particles ,SEM-EDX ,ICP-MS ,Environmental sciences ,GE1-350 - Abstract
Air-transferred solid material accumulated for 40 years in different places in an urban area, Grenoble city, France. An appropriate fractionation procedure allowed to separate: 1) a coarse inorganic fraction, 2) a coarse organic fraction, 3) a slowly depositing organo-clay fraction and 4) very fine particles. The composition of each fraction was determined for 20 elements and for isotopic lead signature. The organo-clay fraction was especially rich in Ag, Cd, Co, Cr, Ni and Ti. The sand fraction showed very high concentrations specifically in Cu, Pb and Fe. In contrast, Cd and Zn were mainly accumulated in the coarse organic fraction. The SEM-EDX study of the coarse inorganic fraction showed the presence of red particles associating Pb and Fe, black particles rich in Cu and typical fly ashes originating mostly from iron industry. This sand fraction is suspected to contribute to the contamination of the organo-clay fraction through adsorption. The Pb-Fe contamination likely originates from the neighbouring road surface contaminated by car traffic for several decades. The 206Pb/207Pb ratio showed that these street dust samples may contain up to 50% of lead originated from leaded gasoline additives, twelve years after their prohibition. All these features clearly differ from the composition found for the deposit on tree bark in the same place. These results demonstrate that the deposition over several decades is a very complex phenomenon which requires multi-techniques investigations to be understood thoroughly. They also show that large dense particles which can only be transported on a limited distance by high magnitude events may play a major role in the long-term contamination of urban soils.
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- 2013
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19. Lead Pollution Remanence in an Urban River System: A multi-scale temporal and spatial study
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Ayrault S., Le Pape P., Priadi C. R., Roy-Barman M., Quantin C., and Bonté P.
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Lead ,urban river ,isotopes ,pollution ,anthropogenic sources ,Environmental sciences ,GE1-350 - Abstract
This work aims at studying the fate of sediments contaminated with tetraethyl Pb from leaded gasoline using a two-dimension upscaling approach, from a small urban subcatchment, the Orge River (900 km2) to the whole Seine River basin (64700 km2), in France. In France, the leaded gasoline reduction started in 1986 and leaded gasoline was completely banned after 2000. This work aims at assessing whether the ban of leaded gasoline is related to changes in Pb contamination sources of these river suspended sediment particles (SPM) and bed sediment. Sediment cores and samples collected in the course of previous research projects of the Seine River contamination were used as temporal archives. The study of the isotopic lead ratio showed the fast decrease of the contamination of urban river suspended particulate matter due to the “gasoline” lead source from 2000 to 2011. This source mostly disappeared in the SPM from the Seine River basin that includes urban areas but also agricultural and industrial activities. Nevertheless, it is still present in the small urban catchment of the Orge River. The results on bed sediments showed a different pattern, where the “gasoline” source is still active in densely populated areas, either in the Seine River in the 20 km downstream Paris, or along the Orge River.
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- 2013
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20. FIXATION OF RADIOACTIVE CAESIUM ON COPPER HEXACYANOFERRATES
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Ayrault, S., primary, Loos-Neskovic, C., additional, Fedoroff, M., additional, Garnier, E., additional, and Jones, D.J., additional
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- 1997
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21. Interspecies calibration in mosses at regional scale—heavy metal and trace elements results from Ile-de-France
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Galsomiès, L, Ayrault, S, Carrot, F, Deschamps, C, and Letrouit-Galinou, M.A
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- 2003
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22. ADAPTATIVE VARIATIONS OF H. PYLORI TO THE MURINE STOMACH
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Janvier, B., Ayrault, S., Grignon, B., Audibert, C., and Fauchère, J. L.
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- 1999
23. Biological fluxes conversion and SXRF experiment with a new active biomonitoring tool for atmospheric metals and trace element deposition
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Amblard-Gross, G, Férard, J.F, Carrot, F, Bonnin-Mosbah, M, Maul, S, Ducruet, J.M, Coddeville, P, Béguinel, P, and Ayrault, S
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- 2002
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24. Suspended sediment source and propagation duringmonsoon events across nested sub-catchments with contrasted land uses in Laos
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Huon, S., Evrard, O., Gourdin, E., Lefèvre, I., Bariac, T., Reyss, J.L., Henry des Tureaux, Thierry, Sengtaheuanghoung, O., Ayrault, S., and Ribolzi, Olivier
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COURS D'EAU ,CHIMIE DE L'EAU ,MATIERE ORGANIQUE ,MATIERE EN SUSPENSION ,ISOTOPE RADIOACTIF ,MOUSSON ,AMENAGEMENT HYDROAGRICOLE - Abstract
Study region: Houay Xon catchment in northern Laos.Study focus: Because agricultural headwater catchments of SE Asia are prone to erosion anddeliver a significant proportion of the total suspended sediment supply to major rivers andfloodplains, the potential sources of sediments and their dynamics were studied for twosuccessive storm flow events in June 2013. Characterization of suspended sediment loadswas carried out along a continuum of 7 monitoring stations, combining analyses of falloutradionuclides, particle borne organic matter and stream water properties.New hydrological insights: Radionuclide activities showed that remobilization of soil par-ticles deposited during the previous rainy season or supplied by riverbank erosion isthe dominant process, although pulses of surface-soil derived sediments also propagatedownstream. This interpretation is supported by suspended organic matter data that alsofingerprints the mixing of surface soil vs. subsurface particles. The study moreover high-lights the advantages and the drawbacks of combining fallout radionuclides, particle borneorganic matter composition and stream water characteristics to discriminate and quantifysediment sources and dynamics in rural areas undergoing urban sprawl.
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- 2017
25. Le sol en héritage
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Nemery, J., Poulenard, J., Evrad, O., Gratiot, Nicolas, Ayrault, S., and Duvert, C.
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- 2014
26. Le sol en héritage
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Bourgeois, F., Evrard, O., Huon, S., Valentin, Christian, and Ayrault, S.
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- 2014
27. Spatial and temporal variability of Be-7 and Pb-210 wet deposition during four successive monsoon storms in a catchment of northern Laos
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Gourdin, E., Evrard, O., Huon, S., Reyss, J. L., Ribolzi, Olivier, Bariac, T., Sengtaheuanghoung, O., and Ayrault, S.
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Rainwater ,Monsoon storm ,temporal variability ,Wet deposition ,Be-7 ,Pb-210 ,Local spatial - Abstract
Fallout radionuclides Be-7 and Pb-210 have been identified as potentially relevant temporal tracers for studying soil particles dynamics (surface vs. subsurface sources contribution; remobilization of inchannel sediment) during erosive events in river catchments. An increasing number of studies compared Be-7: Pb-210 activity ratio in rainwater and sediment to estimate percentages of freshly eroded particles. However, the lack of data regarding the spatial and temporal variability of radionuclide wet deposition during individual storms has been identified as one of the main gaps in these estimates. In order to determine these key parameters, rainwater samples were collected at three stations during four storms that occurred at the beginning of the monsoon (June 2013) in the Houay Xon mountainous catchment in northern Laos. Rainwater Be-7 and Pb-210 activities measured using very low background hyperpure Germanium detectors ranged from 0.05 to 1.72 Bq L-1 and 0.02 to 0.26 Bq L-1, respectively. Water 8180 were determined on the same samples. Total rainfall amount of the four sampled storms ranged from 4.8 to 26.4 mm (51 mm in total) at the time-fractionated collection point. Corresponding cumulative 78e and 210Pb wet depositions during the sampling period were 17.6 and 2.9 Bq m(-2), respectively. The 7Be: 210Pb activity ratio varied (1) in space from 6 to 9 for daily deposition and (2) in time from 3 to 12 for samples successively collected. Intra-event evolution of rainwater 7Be and 210Pb activities as well as 8180 highlighted the progressive depletion of local infra-cloud atmosphere radionuclide stock with time (washout), which remains consistent with a Raleigh-type distillation process for water vapour. Intra-storm ratio increasing with time showed the increasing contribution of rainout scavenging. Implications of such variability for soil particle labelling and erosion studies are briefly discussed and recommendations are formulated for the collection of rainwater signature in studies based on the Be-7: Pb-210 ratio method, especially in tropical areas under high erosive pressure.
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- 2014
28. Tracing sediment sources in a tropical highland catchment of central Mexico by using conventional and alternative fingerprinting methods
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Evrard, O., Poulenard, J., Nemery, J., Ayrault, S., Gratiot, Nicolas, Duvert, C., Prat, Christian, Lefevre, I., Bonte, P., and Esteves, Michel
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fingerprinting ,sediment ,soil types ,tropical catchment ,Mexico - Abstract
Land degradation is intense in tropical regions where it causes for instance a decline in soil fertility and reservoir siltation. Two fingerprinting approaches (i.e. the conventional approach based on radionuclide and geochemical concentrations and the alternative diffuse reflectance infrared Fourier transform spectroscopy method) were conducted independently to outline the sources delivering sediment to the river network draining into the Cointzio reservoir, in Mexican tropical highlands. This study was conducted between May and October in 2009 in subcatchments representative of the different environments supplying sediment to the river network. Overall, Cointzio catchment is characterized by very altered soils and the dominance of Andisols and Acrisols. Both fingerprinting methods provided very similar results regarding the origin of sediment in Huertitas subcatchment (dominated by Acrisols) where the bulk of sediment was supplied by gullies. In contrast, in La Cortina subcatchment dominated by Andisols, the bulk of sediment was supplied by cropland. Sediment originating from Potrerillos subcatchment characterized by a mix of Acrisols and Andisols was supplied in variable proportions by both gullies and rangeland/cropland. In this latter subcatchment, results provided by both fingerprinting methods were very variable. Our results outline the need to take the organic carbon content of soils into account and the difficulty to use geochemical properties to fingerprint sediment in very altered volcanic catchments. However, combining our fingerprinting results with sediment export data provided a way of prioritizing the implementation of erosion control measures to mitigate sediment supply to the Cointzio reservoir supplying drinking water to Morelia city.
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- 2013
29. Quantifying the origin of different sediment types in a catchment of the Southern French Alps by combining hydro-sedimentary records and fingerprinting
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Evrard, O., Navratil, O., Ayrault, S, Esteves, M., Legout, C., Nemery, J., Lefevre, I., Bonte, P., Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Géochimie Des Impacts (GEDI), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Environnement, Ville, Société (EVS), École normale supérieure de Lyon (ENS de Lyon)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université Lumière - Lyon 2 (UL2)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Jean Monnet - Saint-Étienne (UJM)-École Nationale des Travaux Publics de l'État (ENTPE)-École nationale supérieure d'architecture de Lyon (ENSAL)-Centre National de la Recherche Scientifique (CNRS), Erosion torrentielle neige et avalanches (UR ETGR (ETNA)), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Laboratoire d'étude des transferts en hydrologie et environnement (LTHE), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS), EGU, ANR-06-BLAN-0379,STREAMS,Sediment Transport and Erosion Across Mountains(2006), Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Environnement Ville Société (EVS), École normale supérieure - Lyon (ENS Lyon)-Université Lumière - Lyon 2 (UL2)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université de Lyon-Université Jean Monnet [Saint-Étienne] (UJM)-École Nationale des Travaux Publics de l'État (ENTPE)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École nationale supérieure d'architecture de Lyon (ENSAL)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École nationale supérieure d'architecture de Lyon (ENSAL)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École Nationale des Travaux Publics de l'État (ENTPE)-Université Jean Monnet [Saint-Étienne] (UJM)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université Lumière - Lyon 2 (UL2)-École normale supérieure - Lyon (ENS Lyon), Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)
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Southern French Alps ,fingerprinting ,[SDE]Environmental Sciences ,origin of different sediment types ,[SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology ,catchment ,[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology ,[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study ,[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment ,ComputingMilieux_MISCELLANEOUS ,[SHS]Humanities and Social Sciences ,hydro-sedimentary records - Abstract
International audience
- Published
- 2013
30. Combining river monitoring and sediment fingerprinting to quantify spatial and temporal dynamics of fine sediment in mountainous catchments of the French Alps and the Mexican Central Highlands
- Author
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Evrard, O., Navratil, O., Némery, J., Legout, C., Gratiot, N., Duvert, C., Lefèvre, I., Ayrault, S., Prat, C., Poulenard, J., Bonté, P., Esteves, M., Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Géochimie Des Impacts (GEDI), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Érosion torrentielle, neige et avalanches (UR ETGR (ETNA)), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), Laboratoire d'étude des transferts en hydrologie et environnement (LTHE), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS), Environnements, Dynamiques et Territoires de Montagne (EDYTEM), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and Environnements, Dynamiques et Territoires de la Montagne (EDYTEM)
- Subjects
[SDE]Environmental Sciences ,[SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology ,[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology ,[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study ,[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment - Abstract
International audience; An excess supply of fine sediment to rivers leads to numerous environmental problems, such as an increase in water turbidity and a rapid filling of reservoirs. Fine sediment is also an important conveyor of contaminants and nutrients. Spatial and temporal dynamics of sediment transfer need to be better understood to implement efficient control measures. We determined the spatial origin of sediment between 2007 and 2009 in two mountainous river catchments (600-1000 km 2) by combining river flow records and geochemical / radionuclide concentrations as potential input properties to a Monte Carlo mixing model. Results on the main sources of sediment have important management implications in both catchments. In Mexico, we showed a variable sediment supply by historical gully networks and cropland during the rainy season. In the French Alps, we showed that the contribution of black marls that locally produce severe erosion was not systematically dominant at the entire catchment scale. Furthermore, we measured the transfer times of sediment in rivers using a radionuclide two-box balance model and the Be-7/excess-Pb-210 ratio. In Mexico, we outlined the major role played by the flood type on sediment remobilisation and export. In the French Alps, 80% of sediment were exported by low-intensity widespread rainfall and were mainly composed of "old" material that deposited on the riverbed during previous floods and that was subsequently remobilised. In future, we aim to further increase the temporal frequency of sediment sampling to characterize intra-flood variations and to combine 'conventional' fingerprinting techniques with low-cost infrared spectroscopy measurements.
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- 2011
31. Combining suspended sediment monitoring and fingerprinting to determine the spatial origin of fine sediment in a mountainous river catchment
- Author
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Evrard, O., Navratil, Oldrich, Ayrault, S., Ahmadi, M., Nemery, Julien, Legout, C., Lefevre, I., Poirel, A., Bonte, P., Esteves, Michel, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Erosion torrentielle neige et avalanches (UR ETGR (ETNA)), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Laboratoire d'étude des transferts en hydrologie et environnement (LTHE), Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), RIVER, Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), DTG - Electricité de France, EDF (EDF), STREAMS projet, Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Géochimie Des Impacts (GEDI), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Érosion torrentielle, neige et avalanches (UR ETGR (ETNA)), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), ANR-06-BLAN-0379,STREAMS,Sediment Transport and Erosion Across Mountains(2006), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Observatoire des Sciences de l'Univers de Grenoble (OSUG), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
sediment fingerprinting ,Monte Carlo mixing model ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,river ,[SDE]Environmental Sciences ,elemental geochemistry ,[SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology ,[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology ,[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment ,suspended sediment yield ,mountain erosion ,radionuclides - Abstract
[Departement_IRSTEA]Eaux [TR1_IRSTEA]RIVAGE; International audience; An excess of fine sediment (grain size
- Published
- 2011
- Full Text
- View/download PDF
32. Historique de la contamination des milieux: cas de la Seine
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Lorgeoux, C., Moilleron, R., Johnny Gasperi, Bruno Tassin, Ayrault, S., Lefèvre, I., Bonté, P., Enpc, Ist, laboratoire Eau, Environnement et Systèmes Urbains (LEESU), and AgroParisTech-Université Paris-Est Marne-la-Vallée (UPEM)-École des Ponts ParisTech (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)
- Subjects
[SDE] Environmental Sciences ,[SDE]Environmental Sciences - Published
- 2011
33. Urban runoffs : characterization of metal-bearing particles
- Author
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Le Pape, P., Quantin, C., Ayrault, S., Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), CRINON, Evelyne, and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SDU.STU] Sciences of the Universe [physics]/Earth Sciences ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences - Published
- 2010
34. Bioavailability of dietborne metals to a freshwater bivalve (Dreissena polymorpha)
- Author
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Bourgeault, A., Gourlay-Francé, C., Lottin, D., Ayrault, S., Priadi Rianti, C., Tusseau-Vuillemin, M.H., Hydrosystèmes et Bioprocédés (UR HBAN), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), FIRE FEDERATION ILE DE FRANCE DE RECHERCHE SUR L'ENVIRONNEMENT FRA, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Fédération Île-de-France de Recherche sur l'Environnement (FIRE), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-AgroParisTech-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SDE]Environmental Sciences - Abstract
[Departement_IRSTEA]Eaux [TR1_IRSTEA]BELCA; International audience; This study concerns the bioavailability of dietborne metals to a feshwater bivalve: dreissena polymorpha. Bioavailability of dietborne metals is a critical component in the development of quality criteria. Indeed extensive research has been carried out on both aqueous and dietary exposure pathways of metals in bivalves. And it is now accepted that dietary accumulation of metals is at least as important as metal uptake from the aqueous phase and in many cases dominates metal accumulation in bivalves. The major fraction of the trace metals introduced into the aquatic environment is found associated with the particles or the sediments, distributed among a variety of physico-chemical forms. As these different metal forms will generally exhibit different chemical reactivities, the measurement of the total concentration of a particular metal provides little indication of potential interactions with the abiotic or biotic components present in the environment. One way to assess the bioavailability of dietborne metals is by calculating AE: the assimilation efficiency of metals by organisms. AE is the percentage of ingested element that crosses gut lining. It is also one parameter of the following toxico-kinetic model. In this biodynamic model, the metal is accumulated from both the dissolved and the particulate phase. There's also a elimination term due to growth and elimination of metal.AE reflects the bioavailability of a metal for a given animal and under a specified set of conditions. These conditions, include for example the digestive process occuring and the metal speciation, make the determination of AE difficult.
- Published
- 2010
35. P-121 – L'intolérance au methotrexate faible dose n'est pas plus fréquente en rhumatologie qu'en onco-hématologie pédiatrique
- Author
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Ayrault, S., primary, Chausset, A., additional, Thouvenin, S., additional, Stephan, J.L., additional, Chambon, F., additional, Kanold, J., additional, and Merlin, E., additional
- Published
- 2015
- Full Text
- View/download PDF
36. Sources and export of particle-borne organic matter during a monsoon flood in a catchment of northern Laos
- Author
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Gourdin, E., primary, Huon, S., additional, Evrard, O., additional, Ribolzi, O., additional, Bariac, T., additional, Sengtaheuanghoung, O., additional, and Ayrault, S., additional
- Published
- 2015
- Full Text
- View/download PDF
37. Seasonal variability of suspended sediment transport in the Seine river catchment area (France)
- Author
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Christine Franke, Baati, S., Ayrault, S., Philippe Bonté, Evrard, O., Kissel, C., Centre de Géosciences (GEOSCIENCES), Mines Paris - PSL (École nationale supérieure des mines de Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Géochimie Des Impacts (GEDI), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), MINES ParisTech - École nationale supérieure des mines de Paris, Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), and Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)
- Subjects
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,[SDE.MCG]Environmental Sciences/Global Changes ,[SDU.STU.AG]Sciences of the Universe [physics]/Earth Sciences/Applied geology - Abstract
International audience; This study consists in an innovative application of environmental physico-chemical techniques on fluvial sediments with the aim to trace the seasonal changes in suspended sediment transport of the complex Seine river catchment area in northern France. The aim of this project is to develop a detailed understanding for the discrimination of naturally triggered and anthropogenic induced processes and their temporal changes with weather conditions. With a focus on the heavy metal fraction, we determine the regional distribution of the suspended material and search for environmental fingerprints demonstrating the influence of fluvial transport mechanisms, changes in concentration related to discharge variations or different sediment sources, and in-situ alteration caused by variations in the geochemical conditions (oxy-redox, pH, Eh, etc.). To achieve these goals, we apply a combination of straightforward rock magnetic hysteresis measurements (performed using an AGM2900 at the LSCE) and advanced scanning electron microscopy analyses (SEM). This interdisciplinary approach allows refining the detailed analysis of sediment trap samples, originating from Tessier et al. (2003), as recently shown by Franke et al. (2009). In our preliminary results, we observe a general increase in magnetic concentrations from summer to winter conditions, coupled with a magneto-mineralogic change to rather reduced metallic mineral phases. However, each riversection of the Seine system shows its specific trend line depending on the regional initial input, weathering conditions, drainage area and potential pollution sources. A systematic analysis of the detailed results will allow highlighting the climatic/seasonal influence on the metallic particle assembly.
- Published
- 2010
38. Historical trends of PCBs, PAHs, PBDEs and alkylphénols in dated sediments from flood plains of the Seine River (France)
- Author
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Lorgeoux, C., Gasperi, Johnny, Djouarev, I., Moilleron, R., Tassin, Bruno, Ayrault, S., Lefèvre, I., Bonté, P., laboratoire Eau, Environnement et Systèmes Urbains (LEESU), AgroParisTech-Université Paris-Est Marne-la-Vallée (UPEM)-École des Ponts ParisTech (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), and Enpc, Ist
- Subjects
[SDE] Environmental Sciences ,[SDE]Environmental Sciences - Abstract
The Seine River basin (79,000 km2, 20 millions inhabitants) is considered as representative of river basins exposed to the impacts of intense human activity due to the combination of strong human pressures with very limited dilution via the Seine River (mean flow : 290m3/s in Paris). To obtain a chronological overview of the POP-contamination of the basin a sediment-core from flood-plains downstream Paris was collected and analysed. Hence, a 100-cm vertical core was taken close to Bouafles, 100 km downstream Paris (draining about 96 % of the basin) and then divided into 50 2-cm samples. The core was dated by gamma spectrometry of radionuclides 210Pb, 137Cs and 241Am. Then four groups of organic contaminants were analyzed: polychlorinated biphenyls (PCBs), polycyclic aromatic compounds (PAHs), polybromodiphenyl ethers (PBDEs) and alkylphenols (APs). The objectives of this work were i) to determine the concentration and the historical contamination for each family and congener and ii) to compare these historical profiles to the production and consumption patterns. Results show a very high contamination caused mainly by the industrial and urban activity of Paris region. Moreover the temporal profiles clearly underlined strong behaviour differences between pollutants over the period considered (1940-2004). For example, PAHs and PCBs concentrations respectively peaked at the end of the 1950s and in the 1960s and then sharply declined. On the contrary PBDEs peaked around 1990. Globally, the historical profiles fit with the production and consumption patterns for most contaminants. To better understand the time profiles, the next step will more precisely examine their evolution in relation to the evolution of the Seine basin and especially of the Paris region, regarding its urbanization and/or industrialisation.
- Published
- 2010
39. Analyse historique de la contamination en polluants persistants (HAP, PCB, alkylphénols et PDBE) sur le bassin de la Seine
- Author
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Lorgeoux, C., Djouarev, I., Moilleron, R., Johnny Gasperi, Bruno Tassin, Lefèvre, I., Ayrault, S., Bonté, P., laboratoire Eau, Environnement et Systèmes Urbains (LEESU), AgroParisTech-Université Paris-Est Marne-la-Vallée (UPEM)-École des Ponts ParisTech (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), and Enpc, Ist
- Subjects
[SDE] Environmental Sciences ,[SDE]Environmental Sciences - Published
- 2010
40. Archives sédimentaires, témoignages de l'histoire du développement du bassin
- Author
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Ayrault, S., Lefèvre, I., Bonté, P., Priadi, C., Carbonaro-Lestel, L., Mouchel, J.M., Lorgeoux, C., Djouarev, I., Gasperi, Johnny, Moilleron, R., Tassin, Bruno, laboratoire Eau, Environnement et Systèmes Urbains (LEESU), AgroParisTech-Université Paris-Est Marne-la-Vallée (UPEM)-École des Ponts ParisTech (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Géochimie Des Impacts (GEDI), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), PIREN-Seine, Laboratoire Eau, Environnement et Systèmes Urbains (LEESU), and Enpc, Ist
- Subjects
[SDE] Environmental Sciences ,trajectoires ,métaux ,Carottes de sédiments ,[SDE]Environmental Sciences - Abstract
Archives sédimentaires, témoignages de l'histoire du développement du bassin
- Published
- 2009
- Full Text
- View/download PDF
41. Influence d'un déversement de temps de pluie sur les teneurs dissoutes et particulaires de micro-polluants et les bactéries indicatrices fécales en Seine
- Author
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Mouchel, J.M., Bentayeb, K., Passerat, J., Ouattara, K., Servais, P., Ayrault, S., Priadi Rianti, C., Moulin, L., Gourlay, C., Uher, E., Moreau Guigon, E., Labadie, Paul, Teil, M.J., Dinh, Thi Vinh Ha, Tamtam, F., Tlili, K., Blanchard, M., Eurin, J., Alliot, F., Desportes, A., Bourges, C., Chevreuil, Marc, Structure et fonctionnement des systèmes hydriques continentaux (SISYPHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Université libre de Bruxelles (ULB), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), CRECEP PARIS FRA, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Hydrosystèmes et Bioprocédés (UR HBAN), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), National Recherche, irstea, PIREN - Seine, Université Pierre et Marie Curie - Paris 6 (UPMC)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Mines Paris - PSL (École nationale supérieure des mines de Paris), and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
- Subjects
SEINE ,[SDE]Environmental Sciences - Abstract
[Departement_IRSTEA]Eaux [TR1_IRSTEA]BELCA
- Published
- 2009
42. Avancement du projet BIOMET
- Author
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Varrault, G., Bousserrhine, N., Ayrault, S., Benedetti, M., Tusseau-Vuillemin, M.H., Mouchel, Jean-Marie, Enpc, Ist, Centre d'Enseignement et de Recherche Eau Ville Environnement (CEREVE), and AgroParisTech-École des Ponts ParisTech (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)
- Subjects
[SDE] Environmental Sciences ,[SDE]Environmental Sciences - Published
- 2007
43. Multi-element analysis of plant and soil samples
- Author
-
Ayrault, S., Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Géochimie Des Impacts (GEDI), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SDE]Environmental Sciences ,[SDE.ES]Environmental Sciences/Environmental and Society - Abstract
International audience; This chapter is dedicated to the application of six methods of trace element analysis to environmental studies: Instrumental Neutron Activation Analysis (INAA), Synchrotron X-ray Fluorescence (SXRF), Proton Induced X-ray Emission (PIXE), Atomic Absorption Spectrometry (AAS), inductively Coupled Plasma - Atomic Emission Spectrometry (ICP-AES), Inductively Coupled Plasma - Mass Spectrometry (ICP-MS). These methods are categorised into (i) direct techniques, and (ii) destructive techniques. INAA, SXRF and PIXE belong to the first category, while AAS, ICP-AES and ICP-MS are destructive methods. The advantages and disadvantages of each method for a particular application are described. The detection limits are given in the cases of soil and/or plants analysis. The comparison of methods on their optimal detection limits, usually provided by manufacturers, is not correct. In this chapter, the practical point of view is privileged. An emphasis is put on the definition of the problem before choosing the method and on the data evaluation. Means of defining the analytical problem to choose the most convenient analytical procedure and of evaluating the data are proposed
- Published
- 2005
44. Supplementary material to "Depth distribution of radiocesium in Fukushima paddy fields and implications for ongoing decontamination works"
- Author
-
Lepage, H., primary, Evrard, O., additional, Onda, Y., additional, Lefèvre, I., additional, Laceby, J. P., additional, and Ayrault, S., additional
- Published
- 2014
- Full Text
- View/download PDF
45. Depth distribution of radiocesium in Fukushima paddy fields and implications for ongoing decontamination works
- Author
-
Lepage, H., primary, Evrard, O., additional, Onda, Y., additional, Lefèvre, I., additional, Laceby, J. P., additional, and Ayrault, S., additional
- Published
- 2014
- Full Text
- View/download PDF
46. Sources and export of particle-borne organic matter during a monsoon flood in a catchment of northern Laos
- Author
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Gourdin, E., primary, Huon, S., additional, Evrard, O., additional, Ribolzi, O., additional, Bariac, T., additional, Sengtaheuanghoung, O., additional, and Ayrault, S., additional
- Published
- 2014
- Full Text
- View/download PDF
47. Biological fluxes conversion: a new biomonitoring tool for atmospheric metals and trace element deposition
- Author
-
Amblard-Gross, G., Férard, J.F., Garrot, F., Maul, A., Ducruet, J.M., Coddeville, P., Beguinel, P., Ayrault, S., Galsomies, L., Laboratoire de Mathématiques et Applications de Metz (LMAM), Centre National de la Recherche Scientifique (CNRS)-Université Paul Verlaine - Metz (UPVM), and MAUL, Armand
- Subjects
[SDE] Environmental Sciences ,[SDV] Life Sciences [q-bio] ,[SDV]Life Sciences [q-bio] ,[SDE]Environmental Sciences ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2003
48. Sputtering and secondary ion emission induced by gold clusters: - Energy and angular distributions
- Author
-
Brunelle, A., Bouneau, S., Della Negra, S., Depauw, J., Le Beyec, Y., Pautrat, M., Ayrault, S., Gallien, J.-P., Daudin, L., Fallavier, M., Thomas, J.-P., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Flores, Sylvie
- Abstract
BIAS
- Published
- 2002
49. Biological fluxes conversion : a new biomonitoring tool for atmospheric heavy metals deposition
- Author
-
AMBLA-GROSS, G., Carrot, F., DUCRUET, J.-M., Maul, A., FERARD, J.-F., Ayrault, S., CODDEVILLE, P., CENTRE DES SCIENCES DE L'ENVIRONNEMENT METZ, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Unité de recherches de génétique et amélioration des plantes, Institut National de la Recherche Agronomique (INRA), École des Mines de Douai (Mines Douai EMD), Institut Mines-Télécom [Paris] (IMT), and Université Paul Verlaine - Metz (UPVM)
- Subjects
[SDE]Environmental Sciences ,[INFO]Computer Science [cs] ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience; abstract simple
- Published
- 2000
50. 2th international workshop on biomonitoring at atmospheric pollution
- Author
-
Amblard-Gross, G., Carrot, F., DUCRUET, J.-M., Maul, A., FERARD, J.-F., Ayrault, S., Coddeville, P., CENTRE DES SCIENCES DE L'ENVIRONNEMENT METZ, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Unité de recherches de génétique et amélioration des plantes, Institut National de la Recherche Agronomique (INRA), École des Mines de Douai (Mines Douai EMD), and Institut Mines-Télécom [Paris] (IMT)
- Subjects
[INFO]Computer Science [cs] ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience; abstract simple
- Published
- 2000
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