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Registros recuperados: 31
Primeira ... 12 ... Última
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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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Le mercure : son cycle biogéochimique et sa répartition aux échelles planétaire et amazonienne IRD
Roulet, M..
Tipo: Text Palavras-chave: MERCURE; CYCLE BIOGEOCHIMIQUE; REPARTITION GEOGRAPHIQUE; ANALYSE QUANTITATIVE; FACTEUR ANTHROPIQUE; MINE; OR; DEBOISEMENT; ATMOSPHERE; MILIEU AQUATIQUE; DISPERSION; SEDIMENT; POISSON; ETUDE COMPARATIVE; VARIATION TEMPORELLE; EMISSION ATMOSPHERIQUE; EMISSION ANTHROPIQUE; CHIMIE.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026512
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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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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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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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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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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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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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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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Typologie des exploitations aurifères de Guyane et spécificités du contexte socio-économique local IRD
Orru, Jean-François.
Tipo: Text Palavras-chave: MERCURE; EXPLOITATION DU SOUS SOL; OR; SYSTEME DE PRODUCTION; MINE; TYPOLOGIE; TECHNOLOGIE; OUTIL; MAIN D'OEUVRE; COMMUNAUTE AMERINDIENNE; CONSOMMATION ALIMENTAIRE; POISSON D'EAU DOUCE; INDUSTRIE MINIERE.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010026524
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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/
Registros recuperados: 31
Primeira ... 12 ... Última
 

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