Výsledky vyhledávání - "Mercúrio

Mercury loss from soils following conversion from forest to pasture in Rondônia, Western Amazon, Brazil

Autor: Almeida, Marcelo D., Lacerda, Luiz Drude de, Bastos, Wanderley R., Herrmann, João Carlos

Publikováno v: Repositório Institucional da Universidade Federal do Ceará (UFC)
Universidade Federal do Ceará (UFC)
instacron:UFC

This work reports on the effect of land use change on Hg distribution in Amazon soils. It provides a comparison among Hg concentrations and distribution along soil profiles under different land use categories; primary tropical forest, slashed forest

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::97e901f538c4be0da31a993d890786c6
http://www.repositorio.ufc.br/handle/riufc/66145

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Mercury distribution, speciation and flux in the Sepetiba Bay tributaries, SE Brazil

Autor: Paraquetti, Heloisa Helena M., Ayres, Gisele A., Almeida, Marcelo Dominguez de, Molisani, Mauricio M., Lacerda, Luiz Drude de

Publikováno v: Repositório Institucional da Universidade Federal do Ceará (UFC)
Universidade Federal do Ceará (UFC)
instacron:UFC

Dissolved gaseous Hg, reactive Hg, total dissolved Hg and particulate Hg concentrations were measured in samples of majors tributaries of the Sepetiba Bay, SE Brazil (Itimirim, Itingu@u, Guarda, Guandu, S*ao Francisco and Ita rivers), in dry and rain

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::27f8b8d9e504b4f50ca8410363d58440
http://www.repositorio.ufc.br/handle/riufc/66192

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Mercury distribution in continental shelf sediments from two offshore oil fields in southeastern Brazil

Autor: Lacerda, Luiz Drude de, Rex, Carlos Eduardo de, Ovalle, Álvaro Ramon Coelho, Carvalho, Carlos Eduardo Veiga de

Publikováno v: Repositório Institucional da Universidade Federal do Ceará (UFC)
Universidade Federal do Ceará (UFC)
instacron:UFC

Antropogenic enviromental impacts on marine areas are limited to protected costal sites such as bous and estuaries, or semi-enclosed seas. [...]

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::891e63ee6afd446391ad65ca51880629
http://www.repositorio.ufc.br/handle/riufc/66190

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Atmospheric deposition of mercury over Sepetiba Bay, SE Brazil

Autor: Rozane Valente Marins, Luiz Drude de Lacerda, E.V. Silva Filho

Publikováno v: Repositório Institucional da Universidade Federal do Ceará (UFC)
Universidade Federal do Ceará (UFC)
instacron:UFC
Scopus-Elsevier

Atmospheric deposition of mercury over Sepetiba Bay was estimated through collection of bulk precipitation during one year. Mercury concentrations in monthly samples ranged from 30 ng.L-1 to 164 ng.L -1 resulting in a total annual deposition of 76 μ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49a4bdf2e85294d94eb2684adbe6a1ff
http://www.repositorio.ufc.br/handle/riufc/66302

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Mercury distribution in sediment profiles from lakes of the high pantanal, Mato Grosso State, Brazil

Autor: Lacerda, Luiz Drude de, Salomons, W., Pfeiffer, Wolfgang Christian, Bastos, Wanderley Rodrigues

Publikováno v: Repositório Institucional da Universidade Federal do Ceará (UFC)
Universidade Federal do Ceará (UFC)
instacron:UFC

For the distribution of mercury released by the local gold mining. Atmospheric transport is the only pathway of mercury contamination of these remote lakes. Mercury concentrations were higher at the surface of sediments (62 to 80 ug.kg-‘) decreasin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::b4824656dbeba79005fbd7802e8d8983
http://www.repositorio.ufc.br/handle/riufc/66395

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