Variabilidade espacial e sazonal da concentração de elementos-traço em sedimentos do sistema estuarino de Santos-Cubatão (SP)

Detalhes bibliográficos
Autor(a) principal: Luiz-Silva, Wanilson
Data de Publicação: 2006
Outros Autores: Matos, Rosa Helena Ribeiro [UNESP], Kristosch, Giane Chaves [UNESP], Machado, Wilson
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0100-40422006000200016
http://hdl.handle.net/11449/27596
Resumo: Multi-element analyses of sediment samples from the Santos-Cubatão Estuarine System were carried out to investigate the spatial and seasonal variability of trace-element concentrations. The study area contains a rich mangrove ecosystem that is a habitat for tens of thousands of resident and migratory birds, some of them endangered globally. Enrichments of metals in fine-grained surface sediments are, in decreasing order, Hg, Mn, La, Ca, Sr, Cd, Zn, Pb, Ba, Cu, Cr, Fe, Nb, Y, Ni and Ga, relative to pre-industrial background levels. The maximum enrichment ranged from 49 (Hg) to 3.1 (Ga). Mercury concentrations were greater in the Cubatão river than in other sites, while the other elements showed greater concentrations in the Morrão river. Concentrations of Mn were significantly greater in winter and autumn than in summer and spring. However, other elements (e.g. Cd and Pb) showed the opposite, with greater concentrations in summer and spring. This study suggests that seasonal changes in physical and chemical conditions may affect the degree of sediment enrichment and therefore make the assessment of contamination difficult. Consequently, these processes need to be considered when assessing water quality and the potential contamination of biota.
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spelling Variabilidade espacial e sazonal da concentração de elementos-traço em sedimentos do sistema estuarino de Santos-Cubatão (SP)Spatial and seasonal variability of trace-element concentrations in sediments from the Santos-Cubatão estuarine system, São Paulo, Brazilheavy metalssediment geochemistrycontaminationMulti-element analyses of sediment samples from the Santos-Cubatão Estuarine System were carried out to investigate the spatial and seasonal variability of trace-element concentrations. The study area contains a rich mangrove ecosystem that is a habitat for tens of thousands of resident and migratory birds, some of them endangered globally. Enrichments of metals in fine-grained surface sediments are, in decreasing order, Hg, Mn, La, Ca, Sr, Cd, Zn, Pb, Ba, Cu, Cr, Fe, Nb, Y, Ni and Ga, relative to pre-industrial background levels. The maximum enrichment ranged from 49 (Hg) to 3.1 (Ga). Mercury concentrations were greater in the Cubatão river than in other sites, while the other elements showed greater concentrations in the Morrão river. Concentrations of Mn were significantly greater in winter and autumn than in summer and spring. However, other elements (e.g. Cd and Pb) showed the opposite, with greater concentrations in summer and spring. This study suggests that seasonal changes in physical and chemical conditions may affect the degree of sediment enrichment and therefore make the assessment of contamination difficult. Consequently, these processes need to be considered when assessing water quality and the potential contamination of biota.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Universidade Estadual de Campinas Instituto de GeociênciasUniversidade Estadual Paulista Departamento de ZoologiaUniversidade Federal Fluminense (UFF) Departamento de GeoquímicaUniversidade Estadual Paulista Departamento de ZoologiaSociedade Brasileira de QuímicaUniversidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (Unesp)Universidade Federal Fluminense (UFF)Luiz-Silva, WanilsonMatos, Rosa Helena Ribeiro [UNESP]Kristosch, Giane Chaves [UNESP]Machado, Wilson2014-05-20T15:10:21Z2014-05-20T15:10:21Z2006-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article256-263application/pdfhttp://dx.doi.org/10.1590/S0100-40422006000200016Química Nova. Sociedade Brasileira de Química, v. 29, n. 2, p. 256-263, 2006.0100-4042http://hdl.handle.net/11449/2759610.1590/S0100-40422006000200016S0100-40422006000200016S0100-40422006000200016.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporQuímica Nova0.6460,255info:eu-repo/semantics/openAccess2023-11-30T06:20:27Zoai:repositorio.unesp.br:11449/27596Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:11:02.809359Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Variabilidade espacial e sazonal da concentração de elementos-traço em sedimentos do sistema estuarino de Santos-Cubatão (SP)
Spatial and seasonal variability of trace-element concentrations in sediments from the Santos-Cubatão estuarine system, São Paulo, Brazil
title Variabilidade espacial e sazonal da concentração de elementos-traço em sedimentos do sistema estuarino de Santos-Cubatão (SP)
spellingShingle Variabilidade espacial e sazonal da concentração de elementos-traço em sedimentos do sistema estuarino de Santos-Cubatão (SP)
Luiz-Silva, Wanilson
heavy metals
sediment geochemistry
contamination
title_short Variabilidade espacial e sazonal da concentração de elementos-traço em sedimentos do sistema estuarino de Santos-Cubatão (SP)
title_full Variabilidade espacial e sazonal da concentração de elementos-traço em sedimentos do sistema estuarino de Santos-Cubatão (SP)
title_fullStr Variabilidade espacial e sazonal da concentração de elementos-traço em sedimentos do sistema estuarino de Santos-Cubatão (SP)
title_full_unstemmed Variabilidade espacial e sazonal da concentração de elementos-traço em sedimentos do sistema estuarino de Santos-Cubatão (SP)
title_sort Variabilidade espacial e sazonal da concentração de elementos-traço em sedimentos do sistema estuarino de Santos-Cubatão (SP)
author Luiz-Silva, Wanilson
author_facet Luiz-Silva, Wanilson
Matos, Rosa Helena Ribeiro [UNESP]
Kristosch, Giane Chaves [UNESP]
Machado, Wilson
author_role author
author2 Matos, Rosa Helena Ribeiro [UNESP]
Kristosch, Giane Chaves [UNESP]
Machado, Wilson
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual de Campinas (UNICAMP)
Universidade Estadual Paulista (Unesp)
Universidade Federal Fluminense (UFF)
dc.contributor.author.fl_str_mv Luiz-Silva, Wanilson
Matos, Rosa Helena Ribeiro [UNESP]
Kristosch, Giane Chaves [UNESP]
Machado, Wilson
dc.subject.por.fl_str_mv heavy metals
sediment geochemistry
contamination
topic heavy metals
sediment geochemistry
contamination
description Multi-element analyses of sediment samples from the Santos-Cubatão Estuarine System were carried out to investigate the spatial and seasonal variability of trace-element concentrations. The study area contains a rich mangrove ecosystem that is a habitat for tens of thousands of resident and migratory birds, some of them endangered globally. Enrichments of metals in fine-grained surface sediments are, in decreasing order, Hg, Mn, La, Ca, Sr, Cd, Zn, Pb, Ba, Cu, Cr, Fe, Nb, Y, Ni and Ga, relative to pre-industrial background levels. The maximum enrichment ranged from 49 (Hg) to 3.1 (Ga). Mercury concentrations were greater in the Cubatão river than in other sites, while the other elements showed greater concentrations in the Morrão river. Concentrations of Mn were significantly greater in winter and autumn than in summer and spring. However, other elements (e.g. Cd and Pb) showed the opposite, with greater concentrations in summer and spring. This study suggests that seasonal changes in physical and chemical conditions may affect the degree of sediment enrichment and therefore make the assessment of contamination difficult. Consequently, these processes need to be considered when assessing water quality and the potential contamination of biota.
publishDate 2006
dc.date.none.fl_str_mv 2006-04-01
2014-05-20T15:10:21Z
2014-05-20T15:10:21Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0100-40422006000200016
Química Nova. Sociedade Brasileira de Química, v. 29, n. 2, p. 256-263, 2006.
0100-4042
http://hdl.handle.net/11449/27596
10.1590/S0100-40422006000200016
S0100-40422006000200016
S0100-40422006000200016.pdf
url http://dx.doi.org/10.1590/S0100-40422006000200016
http://hdl.handle.net/11449/27596
identifier_str_mv Química Nova. Sociedade Brasileira de Química, v. 29, n. 2, p. 256-263, 2006.
0100-4042
10.1590/S0100-40422006000200016
S0100-40422006000200016
S0100-40422006000200016.pdf
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Química Nova
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 256-263
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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