Evaluation of heavy metal availability in contaminated sediments from the Ilha Solteira hydroelectric dam on the parana river at Ilha Solteira, SP, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/226155 |
Resumo: | This paper investigates the availability of cadmium, copper and lead in surface sediment from a contaminated area in the Ilha Solteira hydroelectric dam. The surface sediment (first 5 cm) was fractionated with plastic sieves and the < 63μm fraction was subjected to a sequential extraction procedure. The pseudototal concentration of metal species, 306.4, 0.092 and 10.1 mg Kg -1 for Cu(II), Cd(II) and Pb(II), respectively, was determined by aqua regia digestion, followed by atomic absorption spectrometry. The results obtained from the sequential extraction procedure indicated that about 10% of Cu(II) and Cd(II) were present in the easily mobilized fraction. All the metal species under investigation showed a predominance of reducible fraction, i.e., more than 50%, while the metal content in the third fraction (oxidizable) varied from 12 to 35%. The metal recovery rate was good, with no significant difference between the amount of metals recovered through the extractant steps and the extractable metals (aqua regia). The results indicate that the sediment poses a risk to aquatic organisms, since a slight change in physical chemical parameters such as pH can mobilize this species to the water column. © by PSP. |
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Evaluation of heavy metal availability in contaminated sediments from the Ilha Solteira hydroelectric dam on the parana river at Ilha Solteira, SP, BrazilBCR sequential extractionReservoirSurface sedimentToxic metalsThis paper investigates the availability of cadmium, copper and lead in surface sediment from a contaminated area in the Ilha Solteira hydroelectric dam. The surface sediment (first 5 cm) was fractionated with plastic sieves and the < 63μm fraction was subjected to a sequential extraction procedure. The pseudototal concentration of metal species, 306.4, 0.092 and 10.1 mg Kg -1 for Cu(II), Cd(II) and Pb(II), respectively, was determined by aqua regia digestion, followed by atomic absorption spectrometry. The results obtained from the sequential extraction procedure indicated that about 10% of Cu(II) and Cd(II) were present in the easily mobilized fraction. All the metal species under investigation showed a predominance of reducible fraction, i.e., more than 50%, while the metal content in the third fraction (oxidizable) varied from 12 to 35%. The metal recovery rate was good, with no significant difference between the amount of metals recovered through the extractant steps and the extractable metals (aqua regia). The results indicate that the sediment poses a risk to aquatic organisms, since a slight change in physical chemical parameters such as pH can mobilize this species to the water column. © by PSP.Departamento de Física e Química FEIS/UNESP Univ. Estadual Paulista, CEP: 15385-000, IIha Solteira, SPDepartamento de Fitotecnia, Tecnologia de Alimentos e Sócio Economia FEIS/UNESP Univ. Estadual Paulista, CEP: 15385-000, Una Solteira, SPDepartamento de Química e Bioquímica IB/UNESP Univ. Estadual Paulista, CEP: 18618-000, Botucatu, SPDepartamento de Química UFMS Universidade Federal do Mato Grosso do Sul, CEP: 79074-460, Campo Grande, MSDepartamento de Física e Química FEIS/UNESP Univ. Estadual Paulista, CEP: 15385-000, IIha Solteira, SPDepartamento de Fitotecnia, Tecnologia de Alimentos e Sócio Economia FEIS/UNESP Univ. Estadual Paulista, CEP: 15385-000, Una Solteira, SPDepartamento de Química e Bioquímica IB/UNESP Univ. Estadual Paulista, CEP: 18618-000, Botucatu, SPUniversidade Estadual Paulista (UNESP)Universidade Federal de Mato Grosso do Sul (UFMS)Minello, Maria Clara S. [UNESP]Paçó, Ana L. [UNESP]Castro, Renata S. D. [UNESP]Caetano, Laercio [UNESP]Padilha, Pedro M. [UNESP]Ferreira, Guilherme [UNESP]Martines, Marco A. U.Castro, Gustavo R. [UNESP]2022-04-28T21:37:15Z2022-04-28T21:37:15Z2010-12-13info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2210-2214Fresenius Environmental Bulletin, v. 19, n. 10, p. 2210-2214, 2010.1018-4619http://hdl.handle.net/11449/2261552-s2.0-78649871117Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengFresenius Environmental Bulletininfo:eu-repo/semantics/openAccess2022-04-28T21:37:15Zoai:repositorio.unesp.br:11449/226155Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T21:37:15Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Evaluation of heavy metal availability in contaminated sediments from the Ilha Solteira hydroelectric dam on the parana river at Ilha Solteira, SP, Brazil |
title |
Evaluation of heavy metal availability in contaminated sediments from the Ilha Solteira hydroelectric dam on the parana river at Ilha Solteira, SP, Brazil |
spellingShingle |
Evaluation of heavy metal availability in contaminated sediments from the Ilha Solteira hydroelectric dam on the parana river at Ilha Solteira, SP, Brazil Minello, Maria Clara S. [UNESP] BCR sequential extraction Reservoir Surface sediment Toxic metals |
title_short |
Evaluation of heavy metal availability in contaminated sediments from the Ilha Solteira hydroelectric dam on the parana river at Ilha Solteira, SP, Brazil |
title_full |
Evaluation of heavy metal availability in contaminated sediments from the Ilha Solteira hydroelectric dam on the parana river at Ilha Solteira, SP, Brazil |
title_fullStr |
Evaluation of heavy metal availability in contaminated sediments from the Ilha Solteira hydroelectric dam on the parana river at Ilha Solteira, SP, Brazil |
title_full_unstemmed |
Evaluation of heavy metal availability in contaminated sediments from the Ilha Solteira hydroelectric dam on the parana river at Ilha Solteira, SP, Brazil |
title_sort |
Evaluation of heavy metal availability in contaminated sediments from the Ilha Solteira hydroelectric dam on the parana river at Ilha Solteira, SP, Brazil |
author |
Minello, Maria Clara S. [UNESP] |
author_facet |
Minello, Maria Clara S. [UNESP] Paçó, Ana L. [UNESP] Castro, Renata S. D. [UNESP] Caetano, Laercio [UNESP] Padilha, Pedro M. [UNESP] Ferreira, Guilherme [UNESP] Martines, Marco A. U. Castro, Gustavo R. [UNESP] |
author_role |
author |
author2 |
Paçó, Ana L. [UNESP] Castro, Renata S. D. [UNESP] Caetano, Laercio [UNESP] Padilha, Pedro M. [UNESP] Ferreira, Guilherme [UNESP] Martines, Marco A. U. Castro, Gustavo R. [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal de Mato Grosso do Sul (UFMS) |
dc.contributor.author.fl_str_mv |
Minello, Maria Clara S. [UNESP] Paçó, Ana L. [UNESP] Castro, Renata S. D. [UNESP] Caetano, Laercio [UNESP] Padilha, Pedro M. [UNESP] Ferreira, Guilherme [UNESP] Martines, Marco A. U. Castro, Gustavo R. [UNESP] |
dc.subject.por.fl_str_mv |
BCR sequential extraction Reservoir Surface sediment Toxic metals |
topic |
BCR sequential extraction Reservoir Surface sediment Toxic metals |
description |
This paper investigates the availability of cadmium, copper and lead in surface sediment from a contaminated area in the Ilha Solteira hydroelectric dam. The surface sediment (first 5 cm) was fractionated with plastic sieves and the < 63μm fraction was subjected to a sequential extraction procedure. The pseudototal concentration of metal species, 306.4, 0.092 and 10.1 mg Kg -1 for Cu(II), Cd(II) and Pb(II), respectively, was determined by aqua regia digestion, followed by atomic absorption spectrometry. The results obtained from the sequential extraction procedure indicated that about 10% of Cu(II) and Cd(II) were present in the easily mobilized fraction. All the metal species under investigation showed a predominance of reducible fraction, i.e., more than 50%, while the metal content in the third fraction (oxidizable) varied from 12 to 35%. The metal recovery rate was good, with no significant difference between the amount of metals recovered through the extractant steps and the extractable metals (aqua regia). The results indicate that the sediment poses a risk to aquatic organisms, since a slight change in physical chemical parameters such as pH can mobilize this species to the water column. © by PSP. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-12-13 2022-04-28T21:37:15Z 2022-04-28T21:37:15Z |
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 |
Fresenius Environmental Bulletin, v. 19, n. 10, p. 2210-2214, 2010. 1018-4619 http://hdl.handle.net/11449/226155 2-s2.0-78649871117 |
identifier_str_mv |
Fresenius Environmental Bulletin, v. 19, n. 10, p. 2210-2214, 2010. 1018-4619 2-s2.0-78649871117 |
url |
http://hdl.handle.net/11449/226155 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Fresenius Environmental Bulletin |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2210-2214 |
dc.source.none.fl_str_mv |
Scopus 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) |
repository.mail.fl_str_mv |
|
_version_ |
1799964650382557184 |