Metals in sediments: bioavailability and toxicity in a tropical reservoir used for public water supply

Detalhes bibliográficos
Autor(a) principal: Cardoso-Silva, Sheila [UNESP]
Data de Publicação: 2016
Outros Autores: Da Silva, Daniel Clemente Vieira Rego, Lage, Fernanda, de Paiva, Teresa Cristina Brazil, Moschini-Carlos, Viviane [UNESP], Rosa, André Henrique [UNESP], Pompêo, Marcelo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/s10661-016-5276-5
http://hdl.handle.net/11449/172895
Resumo: Sediments may be a repository of contaminants in freshwater ecosystems. One way to assess the quality of this compartment, in terms of potentially bioavailable metals, is by the analysis of acid-volatile sulfide (AVS) and simultaneously extracted metals (SEM). In order to investigate the bioavailability, toxicity, and compartmentalization of different metals (Cd, Cr, Cu, Ni, Pb, Zn), sampling of surface sediments was performed at nine stations along the Paiva Castro reservoir (São Paulo, Brazil). The metals were analyzed using atomic absorption spectroscopy. Sediment organic matter (OM), organic carbon (OC), and grain size were also measured. The parameters pH, EH, temperature, and dissolved oxygen were determined at the sediment-water interface. Chronic and acute toxicological tests were performed with sediments from the area where water was extracted for the public water supply. Low levels of OM, associated with loss of stratification in the water column, explained the relatively low AVS values. The molar ratio ∑[SEM]−[AVS]/fOC was less than 130 mmol/kg−1 for all the sampling stations, indicating that the metals were not bioavailable. With the exception of Cd, metal levels were in accordance with background concentrations and the threshold effect level (TEL) established by the Canadian Council of Ministers of the Environment. The ecotoxicological tests confirmed the absence of toxic effects to biota. Application of principal component analysis indicated the presence of four compartments along the reservoir: (1) a riverine zone, potentially threatened by contamination with Cd; (2) an intermediate zone; (3) a limnic area; and (4) the area where water was taken for the public water supply.
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spelling Metals in sediments: bioavailability and toxicity in a tropical reservoir used for public water supplyContaminationMetalSedimentSpatial heterogeneityToxicitySediments may be a repository of contaminants in freshwater ecosystems. One way to assess the quality of this compartment, in terms of potentially bioavailable metals, is by the analysis of acid-volatile sulfide (AVS) and simultaneously extracted metals (SEM). In order to investigate the bioavailability, toxicity, and compartmentalization of different metals (Cd, Cr, Cu, Ni, Pb, Zn), sampling of surface sediments was performed at nine stations along the Paiva Castro reservoir (São Paulo, Brazil). The metals were analyzed using atomic absorption spectroscopy. Sediment organic matter (OM), organic carbon (OC), and grain size were also measured. The parameters pH, EH, temperature, and dissolved oxygen were determined at the sediment-water interface. Chronic and acute toxicological tests were performed with sediments from the area where water was extracted for the public water supply. Low levels of OM, associated with loss of stratification in the water column, explained the relatively low AVS values. The molar ratio ∑[SEM]−[AVS]/fOC was less than 130 mmol/kg−1 for all the sampling stations, indicating that the metals were not bioavailable. With the exception of Cd, metal levels were in accordance with background concentrations and the threshold effect level (TEL) established by the Canadian Council of Ministers of the Environment. The ecotoxicological tests confirmed the absence of toxic effects to biota. Application of principal component analysis indicated the presence of four compartments along the reservoir: (1) a riverine zone, potentially threatened by contamination with Cd; (2) an intermediate zone; (3) a limnic area; and (4) the area where water was taken for the public water supply.Environmental Sciences Program UNESP, Sorocaba campusEcology Department Institute of Biosciences University of São PauloUniversity of São PauloEnvironmental Sciences Program UNESP, Sorocaba campusUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Cardoso-Silva, Sheila [UNESP]Da Silva, Daniel Clemente Vieira RegoLage, Fernandade Paiva, Teresa Cristina BrazilMoschini-Carlos, Viviane [UNESP]Rosa, André Henrique [UNESP]Pompêo, Marcelo2018-12-11T17:02:37Z2018-12-11T17:02:37Z2016-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1007/s10661-016-5276-5Environmental Monitoring and Assessment, v. 188, n. 5, 2016.1573-29590167-6369http://hdl.handle.net/11449/17289510.1007/s10661-016-5276-52-s2.0-849647703542-s2.0-84964770354.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnvironmental Monitoring and Assessment0,5890,589info:eu-repo/semantics/openAccess2023-10-24T06:11:39Zoai:repositorio.unesp.br:11449/172895Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:50:31.536652Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Metals in sediments: bioavailability and toxicity in a tropical reservoir used for public water supply
title Metals in sediments: bioavailability and toxicity in a tropical reservoir used for public water supply
spellingShingle Metals in sediments: bioavailability and toxicity in a tropical reservoir used for public water supply
Cardoso-Silva, Sheila [UNESP]
Contamination
Metal
Sediment
Spatial heterogeneity
Toxicity
title_short Metals in sediments: bioavailability and toxicity in a tropical reservoir used for public water supply
title_full Metals in sediments: bioavailability and toxicity in a tropical reservoir used for public water supply
title_fullStr Metals in sediments: bioavailability and toxicity in a tropical reservoir used for public water supply
title_full_unstemmed Metals in sediments: bioavailability and toxicity in a tropical reservoir used for public water supply
title_sort Metals in sediments: bioavailability and toxicity in a tropical reservoir used for public water supply
author Cardoso-Silva, Sheila [UNESP]
author_facet Cardoso-Silva, Sheila [UNESP]
Da Silva, Daniel Clemente Vieira Rego
Lage, Fernanda
de Paiva, Teresa Cristina Brazil
Moschini-Carlos, Viviane [UNESP]
Rosa, André Henrique [UNESP]
Pompêo, Marcelo
author_role author
author2 Da Silva, Daniel Clemente Vieira Rego
Lage, Fernanda
de Paiva, Teresa Cristina Brazil
Moschini-Carlos, Viviane [UNESP]
Rosa, André Henrique [UNESP]
Pompêo, Marcelo
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Cardoso-Silva, Sheila [UNESP]
Da Silva, Daniel Clemente Vieira Rego
Lage, Fernanda
de Paiva, Teresa Cristina Brazil
Moschini-Carlos, Viviane [UNESP]
Rosa, André Henrique [UNESP]
Pompêo, Marcelo
dc.subject.por.fl_str_mv Contamination
Metal
Sediment
Spatial heterogeneity
Toxicity
topic Contamination
Metal
Sediment
Spatial heterogeneity
Toxicity
description Sediments may be a repository of contaminants in freshwater ecosystems. One way to assess the quality of this compartment, in terms of potentially bioavailable metals, is by the analysis of acid-volatile sulfide (AVS) and simultaneously extracted metals (SEM). In order to investigate the bioavailability, toxicity, and compartmentalization of different metals (Cd, Cr, Cu, Ni, Pb, Zn), sampling of surface sediments was performed at nine stations along the Paiva Castro reservoir (São Paulo, Brazil). The metals were analyzed using atomic absorption spectroscopy. Sediment organic matter (OM), organic carbon (OC), and grain size were also measured. The parameters pH, EH, temperature, and dissolved oxygen were determined at the sediment-water interface. Chronic and acute toxicological tests were performed with sediments from the area where water was extracted for the public water supply. Low levels of OM, associated with loss of stratification in the water column, explained the relatively low AVS values. The molar ratio ∑[SEM]−[AVS]/fOC was less than 130 mmol/kg−1 for all the sampling stations, indicating that the metals were not bioavailable. With the exception of Cd, metal levels were in accordance with background concentrations and the threshold effect level (TEL) established by the Canadian Council of Ministers of the Environment. The ecotoxicological tests confirmed the absence of toxic effects to biota. Application of principal component analysis indicated the presence of four compartments along the reservoir: (1) a riverine zone, potentially threatened by contamination with Cd; (2) an intermediate zone; (3) a limnic area; and (4) the area where water was taken for the public water supply.
publishDate 2016
dc.date.none.fl_str_mv 2016-05-01
2018-12-11T17:02:37Z
2018-12-11T17:02:37Z
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/10.1007/s10661-016-5276-5
Environmental Monitoring and Assessment, v. 188, n. 5, 2016.
1573-2959
0167-6369
http://hdl.handle.net/11449/172895
10.1007/s10661-016-5276-5
2-s2.0-84964770354
2-s2.0-84964770354.pdf
url http://dx.doi.org/10.1007/s10661-016-5276-5
http://hdl.handle.net/11449/172895
identifier_str_mv Environmental Monitoring and Assessment, v. 188, n. 5, 2016.
1573-2959
0167-6369
10.1007/s10661-016-5276-5
2-s2.0-84964770354
2-s2.0-84964770354.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Environmental Monitoring and Assessment
0,589
0,589
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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
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