Dynamics of metals in lacustrine sediments: case study of the Madeira River, Amazon region

ABSTRACT The studies on metals in Madeira River’s principal flow show high variability of Co, Cr, Cu, Fe, Ni, Pb and Zn concentrations. However, the transfer of these metals from the main river channel, whose physical and chemical characteristics differ from those of lakes, has not been fully chara...

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Main Authors: Dario Pires de Carvalho, Ronaldo de Almeida, Ângelo Gilberto Manzatto, Osvaldino Brito de Freitas, Wanderley Rodrigues Bastos
Format: Article
Language:English
Published: Associação Brasileira de Recursos Hídricos 2018-06-01
Series:Revista Brasileira de Recursos Hídricos
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312018000100218&tlng=en
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author Dario Pires de Carvalho
Ronaldo de Almeida
Ângelo Gilberto Manzatto
Osvaldino Brito de Freitas
Wanderley Rodrigues Bastos
author_facet Dario Pires de Carvalho
Ronaldo de Almeida
Ângelo Gilberto Manzatto
Osvaldino Brito de Freitas
Wanderley Rodrigues Bastos
author_sort Dario Pires de Carvalho
collection DOAJ
description ABSTRACT The studies on metals in Madeira River’s principal flow show high variability of Co, Cr, Cu, Fe, Ni, Pb and Zn concentrations. However, the transfer of these metals from the main river channel, whose physical and chemical characteristics differ from those of lakes, has not been fully characterized. The objective of this study was to discuss how the transfer of Madeira River’s metals changes the spatial dynamics of these metals in sediments of the Puruzinho Lake (AM). The principal component analysis pointed to differences in the order of the data, creating two distribution zones of metals. The average concentrations of Co, Cu, Cr, Mn and Fe are higher in the area under the influence of the suspended solids coming from the Madeira River. The zoning of metals in lakes is structured by the forces acting across the river’s course at the same time as plains flood and generates ecotones.
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spelling doaj.art-d4ed302f344c4200b00b44207a422d222022-12-21T19:33:13ZengAssociação Brasileira de Recursos HídricosRevista Brasileira de Recursos Hídricos2318-03312018-06-012310.1590/2318-0331.231820170026Dynamics of metals in lacustrine sediments: case study of the Madeira River, Amazon regionDario Pires de CarvalhoRonaldo de AlmeidaÂngelo Gilberto ManzattoOsvaldino Brito de FreitasWanderley Rodrigues BastosABSTRACT The studies on metals in Madeira River’s principal flow show high variability of Co, Cr, Cu, Fe, Ni, Pb and Zn concentrations. However, the transfer of these metals from the main river channel, whose physical and chemical characteristics differ from those of lakes, has not been fully characterized. The objective of this study was to discuss how the transfer of Madeira River’s metals changes the spatial dynamics of these metals in sediments of the Puruzinho Lake (AM). The principal component analysis pointed to differences in the order of the data, creating two distribution zones of metals. The average concentrations of Co, Cu, Cr, Mn and Fe are higher in the area under the influence of the suspended solids coming from the Madeira River. The zoning of metals in lakes is structured by the forces acting across the river’s course at the same time as plains flood and generates ecotones.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312018000100218&tlng=enTrace elementsBiogeochemistry of metalsPuruzinho Lake
spellingShingle Dario Pires de Carvalho
Ronaldo de Almeida
Ângelo Gilberto Manzatto
Osvaldino Brito de Freitas
Wanderley Rodrigues Bastos
Dynamics of metals in lacustrine sediments: case study of the Madeira River, Amazon region
Revista Brasileira de Recursos Hídricos
Trace elements
Biogeochemistry of metals
Puruzinho Lake
title Dynamics of metals in lacustrine sediments: case study of the Madeira River, Amazon region
title_full Dynamics of metals in lacustrine sediments: case study of the Madeira River, Amazon region
title_fullStr Dynamics of metals in lacustrine sediments: case study of the Madeira River, Amazon region
title_full_unstemmed Dynamics of metals in lacustrine sediments: case study of the Madeira River, Amazon region
title_short Dynamics of metals in lacustrine sediments: case study of the Madeira River, Amazon region
title_sort dynamics of metals in lacustrine sediments case study of the madeira river amazon region
topic Trace elements
Biogeochemistry of metals
Puruzinho Lake
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312018000100218&tlng=en
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