Consulta: subjectFacets:"Contaminants organiques"
Registros recuperados: 10
Data/hora: 07/06/2024 02:27:51

Caractérisation et modélisation des processus de bioaccumulation des PCB chez le merlu (Merluccius merluccius) du golfe du Lion
Provedor de dados: 5
Autores: Bodiguel, Xavier.
Understanding bioaccumulation mechanisms of persistent organic pollutants (POPs) is a major issue for environmental risk assessment. In this work, polychlorinated biphenyls (PCBs), a model contaminant family, has been studied in the European hake (Merluccius merluccius), a high trophic level species from the Gulf of Lions. High concentrations of PCBs were measured in hake from this area compared to those encountered in the population of the Bay of Biscay. PCB biomagnification was highlighted along its food web from marine phytoplankton, suggesting a strong influence of diet on contamination levels. The role of other biological processes was also apprehended in order to understand the high variability of observed levels. Thus, growth, sex, and also the...
Tipo: Text
Palavras-chave: DEB theory; Bioenergetic model; Gulf of Lions; Biomagnification; Food web; Hake; Bioaccumulation; Polychlorinated biphenyls; Organic contaminants; Théorie DEB; Modèle bioenergétique; Golfe du Lion; Bioamplification; Réseau trophique; Merlu; Bioaccumulation; Polychlorobiphényles; Contaminants organiques.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/these-6490.pdf

Suivi de la contamination métallique et organique de deux lots de moules (Mytilicus edulis) implantés au Port de Goury et à l'anse des moulinets (Manche). Année 2004
Provedor de dados: 5
Autores: Lampert, Luis.
Results of the analysis of the metal and organic contaminants on the flesh of mussels introduced in the Goury harbour and in the Anse des Moulinets in November 2003 and May 2003. The values of the metal and organic contaminants observed through this study are within the range of the values recorded by the RNO network between 2000 and 2002. Only the chromium and CB153 concentrations recorded in the Goury point are slightly above those observed throughout 2004.
Tipo: Text
Palavras-chave: Cogéma; Manche/Cotentin; Bio monitoring; Contaminants organiques; Contaminants métalliques.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/rapport-6372.pdf

Suivi de la contamination métallique et organique de deux lots de moules (Mytilus edulis) implantés au port de Goury et à l'Anse des Moulinets (Manche)
Provedor de dados: 5
Autores: Lampert, Luis.
Results of the 2006 metal and organic contaminant analysis on the flesh of mussels introduced in the Goury harbour and in the Moulinets cove in August 2005 and February 2006. The situation is stationary compared to earlier years. We observed higher iron concentrations in the Moulinets point (August and November) than those previously recorded.
Tipo: Text
Palavras-chave: AREVA NC; Cogéma; Manche/Cotentin; Bio monitoring; Contaminants organiques; Contaminants métalliques.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2008/rapport-3832.pdf

Suivi de la contamination métallique et organique de lots de moules (Mytilus edulis) implantés au port de Goury (Manche) - Année 2002-2003
Provedor de dados: 5
Autores: Lampert, Luis.
First results obtained on mussels introduced in the Goury harbour on 12 June 2002 and collected on 20 March 2003 enabling a first approach of living material non-active contamination level next to the Cogema plant in La Hague. As a conclusion, COGEMA's industrial activity could have an effect on living materials, with a slight rise in the cadmium, mercury and zinc concentrations observed in mussel flesh, but without exceeding sanitary norms.
Tipo: Text
Palavras-chave: Cogéma; Bio monitoring; Contaminants organiques; Contaminants métalliques.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/rapport-3833.pdf

Suivi de la contamination métallique et organique de deux lots de moules (Mytilicus edulis) implantés au Port de Goury et à l'anse des moulinets (Manche). Année 2005
Provedor de dados: 5
Autores: Lampert, Luis.
2005 results of the analysis of the metal and organic contaminants on the flesh of mussels introduced in the port of Goury and in the Moulinets cove in November 2004 and August 2005. The situation is stable compared to the previous years. We observed concentrations of mercury higher than the national medians, although not crossing above the administrative threshold for mercury.
Tipo: Text
Palavras-chave: Cogéma; Manche/Cotentin; Bio monitoring; Contaminants organiques; Contaminants métalliques.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-6371.pdf

Etat chimique des sédiments et influence d'une extraction de granulats sur l'état chimique de l'eau de mer dans le cadre du PER GMH - Etude SCOOTER. Etude sur la remobilisation de Sédiments potentiellement COntaminés induite par une OpéraTion d’ExtRaction de granulats en baie de Seine
Provedor de dados: 5
Autores: Menet-nedelec, Florence; Chiffoleau, Jean-francois; Riou, Philippe; Maheux, Frank; Pierre-duplessix, Olivier; Rabiller, Emilie; Simon, Benjamin.
Dans les mers côtières où les données des réseaux de surveillance montrent que les sédiments fins en surface contiennent des contaminants, la remobilisation de ces matériaux à l’occasion d’extractions de granulats, qui génère un panache turbide, pourrait influencer la qualité de l’eau. La baie de Seine orientale est sous l’influence du panache de la Seine, l’un des fleuves les plus contaminés d’Europe. Cette étude avait pour objectif d’examiner la remobilisation des métaux traces et de contaminants organiques des sédiments vers la surface pendant et après une extraction de granulats à travers leur comportement entre la fraction totale et dissoute. Pour cela, l’expérimentation a été réalisée lors d’un essai d’extraction dans le cadre du Permis Exclusif de...
Tipo: Text
Palavras-chave: Baie de Seine; Métaux traces; Contaminants organiques; Sédiment; Eau de mer; Panache turbide; Extraction de granulats.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00310/42078/41381.pdf

Suivi de la contamination métallique et organique de deux lots de moules (Mytilicus edulis) implantés au Port de Goury et à l'anse des moulinets (Manche). Année 2007
Provedor de dados: 5
Autores: Lampert, Luis.
2007 results of the analysis of the metal and organic contaminants on the flesh of mussels introduced in the port of Goury and in the Moulinets cove on November 6th, 2006. The situation is stable compared to the previous years. A decrease of tendency in the metal concentration has started as far as lead, nickel, mercury and chromium are concerned.
Tipo: Text
Palavras-chave: AREVA NC; Cogéma; Manche/Cotentin; Bio monitoring; Contaminants organiques; Contaminants métalliques.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/rapport-6370.pdf

Modélisation des contaminants en milieu aquatique: Module MET&amp;OR
Provedor de dados: 5
Autores: Thouvenin, Benedicte.
The MET&amp;OR module is a model, written in FORTRAN 90, which calculates the biogeochemical reactions between variables such as trace metal, radioactive tracers, organic or bacterial contaminants (biodegradation, decay, adsorption / desorption, photolysis, hydrolysis, volatilization, partition at equilibrium ..). It groups together classical reactions, described in the literature, to evaluate the source and sink terms which are integrated into the transport equations solved by a hydrodynamic model. It is intended more particularly for marine and coastal waters. This technical documentation aims to present the MET&amp;OR module and the way in which it was coupled to the hydrodynamic model, in particular to MARS-3D.
Tipo: Text
Palavras-chave: Modelisation; Biogéochimie; Contaminants métalliques; Organic contmainants; Contaminants bactériens; Modeling; Biogeochemical; Trace metals; Contaminants organiques; Bacterial contaminant.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00688/79972/83002.pdf

Suivi de la contamination métallique et organique de deux lots de moules (Mytilus edulis) implantés au port de Goury et à l'Anse des Moulinets (Manche) - Année 2015
Provedor de dados: 5
Autores: Menet-nedelec, Florence; Louis, Fabienne; Mary, Charlotte.
Dans le cadre de la surveillance des rejets non actifs de l’usine AREVA NC, les concentrations de différents éléments et substances chimiques sont suivies dans des moules (Mytilus Edulis) sur les points Goury et Moulinets. Ce rapport présente les résultats pour l’année 2015. Les variations saisonnières sont présentées pour chaque paramètre surveillé. Les teneurs mesurées sont comparées aux données nationales et régionales du Réseau d’Observation de la contamination chimique (ROCCH).
Tipo: Text
Palavras-chave: Contaminants metalliques; Contaminants organiques; Bio]monitoring; Manche/Cotentin; COGEMA; AREVA NC.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00335/44600/44326.pdf

Contamination des crustacés décapodes par les composes organohalogénés : étude détaille de la bioaccumulation des PCB chez l'araignée de mer Maja brachydactyla
Provedor de dados: 5
Autores: Bodin, Nathalie.
Marine decapod crustaceans are macrobenthic opportunist species, of great commercial interest, and can accumulate pollutants. Worrying about consumers' safety, polychlorobiphenyls (PCBs), polybromodiphenyl Ethers (PBDEs) and dioxins (PCDD/Fs) were analyzed in four crustacean species from the coastal waters of Brittany and Normandy. As regards to regulations, the consumption of crustacean muscle doesn't raise any health problems. The second objective of this study was to evaluate the biological processes influencing PCB bioaccumulation in the spider crab Maja brachydactyla. From a quantitative point of view, organotropism, diet and age were the major factors acting on contamination. From a qualitative point of view, PCB fingerprints depended on sex, and to...
Tipo: Text
Palavras-chave: Food safety; Biotransformation; Biomagnification; Food webs; Stable isotopes; Decapod crustaceans; Bioaccumulation; Polychlorinated biphenyls; Organic contaminants; Sécurité sanitaire; Biotransformation; Bioamplification; Réseaux trophiques; Isotopes stables; Crustacés décapodes; Bioaccumulation; Contaminants organiques.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/these-1149.pdf