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Registros recuperados: 31
Primeira ... 12 ... Última
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Teneur en mercure du thon albacore (Thunnus albacares) IRD
Aldrin, J.F.; Lemaitre, P.; Fonteneau, Alain.
Tipo: Text Palavras-chave: POLLUTION MARINE; MERCURE; TOXICITE; DOSAGE; ORGANE; THON; POISSON MARIN; ETUDE COMPARATIVE; CORRELATION STATISTIQUE; THUNNUS ALBACARES; THUNNUS OBESUS.
Ano: 1973 URL: http://www.documentation.ird.fr/hor/fdi:06420
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La dimension géopolitique du processus d'occupation de l'Amazonie brésilienne IRD
Becker, B.K..
Tipo: Text Palavras-chave: MERCURE; CONTAMINATION; GEOPOLITIQUE; OCCUPATION SPATIALE; HISTOIRE DU PEUPLEMENT; PROJET DE DEVELOPPEMENT; TERRITOIRE; EXPANSION; FRONTIERE; DEVELOPPEMENT REGIONAL; CAPITALISME; CONFLIT FONCIER; MINORITE ETHNIQUE; EXPLOITATION DU SOUS SOL; OR; MINE; ENERGIE HYDROELECTRIQUE; BARRAGE; DEBOISEMENT; ELEVAGE; AGRICULTEUR; DEGRADATION; URBANISATION; ROUTE; ORPAILLAGE.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026525
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Xylem sap as a pathway for total mercury and methylmercury transport from soils to tree canopy in the boreal forest Inra
Bishop, K.H.; Lee, Y.H.; Munthe, J.; Dambrine, E..
Conifer needles are an important link in the cycling of Total Mercury (THg) and Methylmercury (MeHg) in the boreal ecosystem due to the high THg andMeHg concentrations in litterfall.Translocationwithin the tree ofHg fromsoils to the crowncanopy has been assumed to be a minor source of the Hg in litterfall. This paper, however, is the first to present direct observations of THg/MeHg transport from the soil via xylem sap. Xylem sap concentrations of THg and MeHg were measured in sap drained from different levels along the boles of freshly cut 100 year old Norway spruce (Picea abies) and Scots pine (Pinus sylvestris). The treescame from a mixed stand growing on podzolized till soils at the Svartberget Forest Research Station in N. Sweden. Soil solution...
Tipo: Journal Article Palavras-chave: FORET BOREALE; MERCURE; METHYLMERCURE; FEUILLE; SOL; TRANSPORT SOL PLANTE; XYLEME; LITIERE FORESTIERE; POLLUANT; METAL LOURD NORWAY SPRUCE; LITTER ; DEPOSITION; EMISSION; ENVIRONMENT; PLANTS; VAPOR; AIR; HG; ATMOSPHERIC DEPOSITION; LITTERFALL; MERCURY; METHYLMERCURY; XYLEM SAP .
Ano: 1998 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010da7bd4d&uri=/notices/prodinra1/2010/10/
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Le mercure en Amazonie : rôle de l'homme et de l'environnement, risques sanitaires IRD
Carmouze, Jean-Pierre (ed.); Lucotte, M. (ed.); Boudou, A. (ed.).
Tipo: Text Palavras-chave: MERCURE; TOXICITE; CONTAMINATION; CYCLE BIOGEOCHIMIQUE; REPARTITION GEOGRAPHIQUE; SOL; EAU DE SURFACE; EAU CONTINENTALE; SEDIMENTATION LACUSTRE; POISSON D'EAU DOUCE; EXPLOITATION DU SOUS SOL; MINE; OR; SANTE PUBLIQUE; GROUPE A RISQUE; CONSOMMATION ALIMENTAIRE; INTOXICATION ALIMENTAIRE; SYMPTOME; ENFANT; GEOPOLITIQUE; TELEDETECTION; OCCUPATION SPATIALE; SURVEILLANCE; ENQUETE; ETUDE D'IMPACT; METHYLMERCURE; ORPAILLAGE.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026510
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Mercury levels in Yanomami indians hair from Roraima-Brazil IRD
Castro, M.B.; Albert, Bruce; Pfeiffer, W.C..
Tipo: Text Palavras-chave: MERCURE; ENVIRONNEMENT; POLLUTION; METAL LOURD; SANTE PUBLIQUE; ORPAILLAGE; CHEVEU.
Ano: 1991 URL: http://www.documentation.ird.fr/hor/fdi:40667
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Effets de l'exposition au mercure sur le développement de l'enfant IRD
Cordier, S..
Tipo: Text Palavras-chave: MERCURE; TOXICITE; ENFANT; INTOXICATION ALIMENTAIRE; POISSON D'EAU DOUCE; GROSSESSE; LAIT MATERNEL; SYMPTOME; FACTEUR SOCIOCULTUREL; ETUDE D'IMPACT; NEUROTOXICITE; TRANSMISSION MERE ENFANT.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026521
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Les processus de méthylation du mercure en milieu amazonien IRD
Davée Guimaraes, J.R..
Tipo: Text Palavras-chave: MERCURE; TOXICITE; REACTION CHIMIQUE; FACTEUR ECOLOGIQUE; PLAINE INONDABLE; SOL; FACTEUR ANTHROPIQUE; BARRAGE; LAC ARTIFICIEL; DEBOISEMENT; DEGRADATION DU SOL; METHYLATION; METHYLMERCURE.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026516
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Analyse des normes actuelles à travers le monde IRD
Dolbec, J..
Tipo: Text Palavras-chave: MERCURE; TOXICITE; DOSE; NORME; POISSON D'EAU DOUCE; CONSOMMATION ALIMENTAIRE; METHYLMERCURE.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026522
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Consommation de poisson et exposition au méthylmercure des populations amazoniennes IRD
Dolbec, J.; Fréry, N..
Tipo: Text Palavras-chave: MERCURE; TOXICITE; CONTAMINATION; POISSON D'EAU DOUCE; INTOXICATION ALIMENTAIRE; CONSOMMATION ALIMENTAIRE; COUTUME ALIMENTAIRE; TRANSMISSION; ALLAITEMENT MATERNEL; VARIATION SAISONNIERE; ENQUETE NUTRITIONNELLE; FACTEUR SOCIOCULTUREL; ETUDE COMPARATIVE; METHYLMERCURE; BIOINDICATEUR; TRANSMISSION MERE ENFANT.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026518
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Concentrations of heavy metals and trace elements in the marine sediments of the Suva Lagoon, Fiji IRD
Garimella, S.; McArthur, A.; Ferland, M.; Snehaleela, O..
Tipo: Text Palavras-chave: SEDIMENTATION LAGUNAIRE; METAL LOURD; ELEMENT EN TRACE; RADIOELEMENT; MERCURE; ZINC; CHROME; FER; ARSENIC; ABONDANCE; METHODE D'ANALYSE; SPECTROMETRIE; CONTAMINATION; POLLUTION MARINE; INDICATEUR BIOLOGIQUE; ANTIMOINE.
Ano: 2002 URL: http://www.documentation.ird.fr/hor/fdi:010032735
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Geoquimica IRD
Guzman, F.; Duprey, Jean-Louis; Pouilly, Marc.
Tipo: Text Palavras-chave: POLLUTION CHIMIQUE; COURS D'EAU; MINE; MERCURE; MATIERE EN SUSPENSION; ANALYSE CHIMIQUE; VARIATION SAISONNIERE.
Ano: 2008 URL: http://www.documentation.ird.fr/hor/fdi:010047558
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Les effets sur la santé de l'exposition aux vapeurs de mercure chez les orpailleurs, les raffineurs/commerçants d'or et les populations vivant à proximité IRD
Kom, J. de.
Tipo: Text Palavras-chave: MERCURE; TOXICITE; GROUPE A RISQUE; MINEUR; CONTAMINATION; SYMPTOME; SURVEILLANCE; SANG; URINE; ETUDE D'IMPACT; ETUDE COMPARATIVE; INHALATION.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026517
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Le mercure dans les eaux de surface du bassin amazonien : transfert du mercure des sols aux milieux aquatiques, spéciation, transport et sédimentation dans les rivières et plaines d'inondation IRD
Maurice Bourgoin, Laurence.
Tipo: Text Palavras-chave: MERCURE; EAU DE SURFACE; BASSIN FLUVIAL; COURS D'EAU; REPARTITION GEOGRAPHIQUE; DEGRADATION DU SOL; EROSION; TRANSPORT; SEDIMENTATION LACUSTRE; SEDIMENTATION FLUVIATILE; MILIEU AQUATIQUE; LAC; PLAINE INONDABLE; FACTEUR ANTHROPIQUE; DEBOISEMENT; ANALYSE QUANTITATIVE.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026514
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Hydrological control on the temporal variability of mercury in surface waters of the upper Madeira basin rivers, Bolivia IRD
Maurice Bourgoin, Laurence; Fraizy, Pascal; Alanoca, L.; Seyler, Patrick; Guyot, Jean-Loup.
Mercury contamination of waters and soils is an environmental problem of increasing concern throughout the Amazon River baxin. In order to better understand the sources of Hg in a major tributary to the Amazon, a monthly time series spanning an entire hydrological cycle has been measured for two rivers of the Upper Madeira drainage basin. At both gauging stations, we observe a hydrological control on the temporal variability of the dissolved and the total mercury (THg) concentrations: they increase in phase with increasing discharge and we observe the highest THg concentrations at the peak stage. Mercury associated with particles represents more than 90% of the TH g in high-water period, and tends to decrease only slowly with falling river stage. This...
Tipo: Text Palavras-chave: MERCURE; EAU DE SURFACE; CONTAMINATION; POLLUTION DES EAUX CONTINENTALES; COURS D'EAU; CYCLE HYDROLOGIQUE.
Ano: 2000 URL: http://www.documentation.ird.fr/hor/fdi:010025634
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Transport and behaviour of total mercury in the Amazon river at the confluence of black and white waters IRD
Maurice Bourgoin, Laurence; Quemerais, B.; Guyot, Jean-Loup; Laraque, Alain; Seyler, Patrick.
This study describes the transport and speciation of mercury and the associated role of organic matter in these processes at the confluence of the Negro ('black waters') and Solimoes ('white waters') rivers which form the Amazon river. The Negro presents the highest total Hg content (11,6 to 18,2 ng 1-1) due to the extreme particulate Hg concentration which reaches values (2074 ng g-1 at the surface) 10 to 20 times higher than these measured in other Amazon tributaries. The total organic carbon analysed in the Negro consists primarily of particulate carbon (54.8%), while the dissolved organic carbon is composed mainly of humic compounds (50%), carriers for most of the metal ions transported in both rivers. At the confluence of the Negro and Solimoes...
Tipo: Text Palavras-chave: MERCURE; COURS D'EAU; TRANSPORT SOLIDE; CONTAMINATION; POLLUTION DES EAUX CONTINENTALES; MATIERE EN SUSPENSION; GEOCHIMIE; EXPLOITATION DU SOUS SOL.
Ano: 1999 URL: http://www.documentation.ird.fr/hor/fdi:010025636
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El mercurio en la amazonia boliviana : sintesis del conocimiento sobre la contaminacion por mercurio en aguas, sedimentos y peces del rio Beni y sus tributarios, impactos sobre las poblaciones riberenas; C 010057498 IRD
Maurice Bourgoin, Laurence; Quiroga, I. (collab.); Alanoca, L. (collab.); Flores, L. (collab.); Chincheros, J. (collab.).
La contaminacion por mercurio de los rios constituye un problema cada vez mas preocupante en toda la cuenca amazonica. Este mercurio tiene origenes naturales como las emisiones volcanicas o termales, la disolucion de algunas rocas o la erosion de los suelos que, en esta zona del mundo, presentan concentraciones en metales pesados muy elevadas. El mercurio puede provenir tambien de las actividades de explotacion auriferas, cada vez mas numerosas en la Amazonia, region afectada por la "fiebre del oro" nuevamente en los anos 70. (Résumé d'auteur)
Tipo: Text Palavras-chave: POLLUTION DES EAUX CONTINENTALES; MERCURE; METAL LOURD; FACTEUR ANTHROPIQUE; POLLUTION BIOLOGIQUE; EXPLOITATION DU SOUS SOL; OR; COURS D'EAU; VOLCAN; POISSON D'EAU DOUCE; CONSEQUENCE ECOLOGIQUE; COMMUNAUTE AMERINDIENNE; SANTE PUBLIQUE; ETUDE D'IMPACT.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010025628
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Total mercury distribution in the Bolivian tributaries of the Madeira river : importance of the biomagnification process in the aquatic food-chain IRD
Maurice Bourgoin, Laurence; Quiroga, I.; Malm, O.; Courau, P..
Total mercury concentration range measured in surface waters of the Bolivian Amazon basin vary from 2.24-2.57 ng 1-1 in glacial waters to 7.228.22 ng 1-1, in the Beni River at the end of the Andean piedmont. The highest mercury concentration were not found in the rivers where the mining activities take place but at the outlet of the Andean sub-basins exploited for their alluvial gold. The quite low concentrations of Hg in the sediments indicate a low sedimentary contamination due to the high particulate transport in the Andena tributaries. In piscivorous fishes, the mercury concentrations found vary in the Beni and Mamore rivers from 0.8-2.3 ug Hg g-1 and 0.4-2-1 ug Hg g-1 respectively, to 0.3-5.2 ug Hg g-1 in the Madeira River at its formatin. We found...
Tipo: Text Palavras-chave: MERCURE; CONTAMINATION; POLLUTION DES EAUX CONTINENTALES; COURS D'EAU; POISSON D'EAU DOUCE; EXPLOITATION DU SOUS SOL; OR; ALIMENTATION HUMAINE; SANTE PUBLIQUE.
Ano: 1999 URL: http://www.documentation.ird.fr/hor/fdi:010025638
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Les effets de l'exposition au méthylmercure chez les adultes IRD
Mergler, D.; Lebel, J..
Tipo: Text Palavras-chave: SANTE PUBLIQUE; MERCURE; TOXICITE; CONTAMINATION; ADULTE; METABOLISME; SYMPTOME; PREVENTION SANITAIRE; ETUDE D'IMPACT; METHYLMERCURE; MALADIE DE MINAMATA; NEUROTOXICITE.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026520
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Enquêtes sanitaires et contaminations mercurielles en Amazonie brésilienne IRD
Oliveira Santos, E..
Tipo: Text Palavras-chave: MERCURE; TOXICITE; CONTAMINATION; SANTE PUBLIQUE; GROUPE A RISQUE; MINEUR; OR; SYMPTOME; INTOXICATION ALIMENTAIRE; POISSON D'EAU DOUCE; GROUPE D'AGE; CONDITIONS DE VIE; ENQUETE NUTRITIONNELLE; ETUDE D'IMPACT; ETUDE COMPARATIVE.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026519
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Inventaire historique de l'activité d'orpaillage en Guyane française IRD
Orru, Jean-François.
Tipo: Text Palavras-chave: MERCURE; POLLUTION CHIMIQUE; POLLUTION DES EAUX CONTINENTALES; EXPLOITATION DU SOUS SOL; OR; MINE; DEMOCRATISATION; INDUSTRIALISATION; HISTOIRE; ORPAILLAGE.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026523
Registros recuperados: 31
Primeira ... 12 ... Última
 

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