| Registro completo |
| Provedor de dados: |
Acta Amazonica
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| País: |
Brazil
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| Título: |
Flood pulse and spatial dynamics of mercury in sediments in Puruzinho lake, Brazilian Amazon
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| Autores: |
Almeida,Ronaldo de
Bernardi,José Vicente Elias
Oliveira,Ronaldo Cavalcante
Carvalho,Dario Pires de
Manzatto,Angelo Gilberto
Lacerda,Luiz Drude de
Bastos,Wanderley Rodrigues
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| Data: |
2014-01-01
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| Ano: |
2014
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| Palavras-chave: |
Organic matter
Indicator kriging
Madeira river
Seasonality
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| Resumo: |
The study was conducted in Puruzinho lake (Humaitá, AM) considering seasonal periods of rainy and dry in way to elucidate the flood pulse importance in the deposition, remobilization and distributions of mercury and organic matter in bottom sediments in the Madeira River Basin (Brazilian Amazon). Bottom sediments and soils samples were analyzed for total mercury and organic matter. Mercury concentrations obtained in bottom sediment were 32.20-146.40 ng g-1 and organic matter values were 3.5 - 18.0%. The main region for accumulation of mercury and organic matter was in the central and deepest lake area In the rainy season there was a greater distribution of Hg and organic matter, mainly controlled by means of income of the Madeira river water during flooding, while the predominant process in the dry season was the remobilization of total Hg due to the resuspension of bottom sediments.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000100010
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| Editor: |
Instituto Nacional de Pesquisas da Amazônia
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| Relação: |
10.1590/S0044-59672014000100010
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| Formato: |
text/html
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| Fonte: |
Acta Amazonica v.44 n.1 2014
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| Direitos: |
info:eu-repo/semantics/openAccess
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