Metal bioavailability potential of São Francisco river sediments in Três Marias (Minas Gerais - Brazil)
Main Author: | |
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Publication Date: | 2014 |
Other Authors: | , , |
Format: | Article |
Language: | eng |
Source: | REM. Revista Escola de Minas (Online) |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0370-44672014000200004 |
Summary: | Sediment contamination by metals is very common and frequently researched worldwide with the objective of assessing the environmental impact of these contaminants. The bulk metal concentration in sediments is not enough for assessing toxicity and therefore, needs additional research and assays. To estimate the potentially bioavailable fraction of the metals in the sediment, the acid-volatile sulfides / simultaneously extracted metals (AVS/SEM) method was used. Seven samples in duplicate were collected from the São Francisco River and its tributary, near a zinc metallurgical plant in the city of Três Marias (MG). The AVS/SEM results suggest that, although the bulk metal concentrations are above TEL (Threshold Effects Level: A chemical concentration above which some adverse effect to biota is expected), samples from the São Francisco River presented relatively low potential for bioavailability (uncertain toxicity). These results should be taken into consideration before deciding about contaminated sediment management. |
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Metal bioavailability potential of São Francisco river sediments in Três Marias (Minas Gerais - Brazil)AVS-SEMbioavailabilitymetalsSão Francisco RiverSediment contamination by metals is very common and frequently researched worldwide with the objective of assessing the environmental impact of these contaminants. The bulk metal concentration in sediments is not enough for assessing toxicity and therefore, needs additional research and assays. To estimate the potentially bioavailable fraction of the metals in the sediment, the acid-volatile sulfides / simultaneously extracted metals (AVS/SEM) method was used. Seven samples in duplicate were collected from the São Francisco River and its tributary, near a zinc metallurgical plant in the city of Três Marias (MG). The AVS/SEM results suggest that, although the bulk metal concentrations are above TEL (Threshold Effects Level: A chemical concentration above which some adverse effect to biota is expected), samples from the São Francisco River presented relatively low potential for bioavailability (uncertain toxicity). These results should be taken into consideration before deciding about contaminated sediment management.Escola de Minas2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0370-44672014000200004Rem: Revista Escola de Minas v.67 n.2 2014reponame:REM. Revista Escola de Minas (Online)instname:Escola de Minasinstacron:ESCOLA DE MINAS10.1590/S0370-44672014000200004info:eu-repo/semantics/openAccessMartins,Afonso HenriquesAlmeida,Débora FernandesSantos,Luciano Rodrigues GomesMoreira,Thiago Toussaint Marcelinoeng2014-07-25T00:00:00Zoai:scielo:S0370-44672014000200004Revistahttp://www.scielo.br/remhttps://old.scielo.br/oai/scielo-oai.phpeditor@rem.com.br1807-03530370-4467opendoar:2014-07-25T00:00REM. Revista Escola de Minas (Online) - Escola de Minasfalse |
dc.title.none.fl_str_mv |
Metal bioavailability potential of São Francisco river sediments in Três Marias (Minas Gerais - Brazil) |
title |
Metal bioavailability potential of São Francisco river sediments in Três Marias (Minas Gerais - Brazil) |
spellingShingle |
Metal bioavailability potential of São Francisco river sediments in Três Marias (Minas Gerais - Brazil) Martins,Afonso Henriques AVS-SEM bioavailability metals São Francisco River |
title_short |
Metal bioavailability potential of São Francisco river sediments in Três Marias (Minas Gerais - Brazil) |
title_full |
Metal bioavailability potential of São Francisco river sediments in Três Marias (Minas Gerais - Brazil) |
title_fullStr |
Metal bioavailability potential of São Francisco river sediments in Três Marias (Minas Gerais - Brazil) |
title_full_unstemmed |
Metal bioavailability potential of São Francisco river sediments in Três Marias (Minas Gerais - Brazil) |
title_sort |
Metal bioavailability potential of São Francisco river sediments in Três Marias (Minas Gerais - Brazil) |
author |
Martins,Afonso Henriques |
author_facet |
Martins,Afonso Henriques Almeida,Débora Fernandes Santos,Luciano Rodrigues Gomes Moreira,Thiago Toussaint Marcelino |
author_role |
author |
author2 |
Almeida,Débora Fernandes Santos,Luciano Rodrigues Gomes Moreira,Thiago Toussaint Marcelino |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Martins,Afonso Henriques Almeida,Débora Fernandes Santos,Luciano Rodrigues Gomes Moreira,Thiago Toussaint Marcelino |
dc.subject.por.fl_str_mv |
AVS-SEM bioavailability metals São Francisco River |
topic |
AVS-SEM bioavailability metals São Francisco River |
description |
Sediment contamination by metals is very common and frequently researched worldwide with the objective of assessing the environmental impact of these contaminants. The bulk metal concentration in sediments is not enough for assessing toxicity and therefore, needs additional research and assays. To estimate the potentially bioavailable fraction of the metals in the sediment, the acid-volatile sulfides / simultaneously extracted metals (AVS/SEM) method was used. Seven samples in duplicate were collected from the São Francisco River and its tributary, near a zinc metallurgical plant in the city of Três Marias (MG). The AVS/SEM results suggest that, although the bulk metal concentrations are above TEL (Threshold Effects Level: A chemical concentration above which some adverse effect to biota is expected), samples from the São Francisco River presented relatively low potential for bioavailability (uncertain toxicity). These results should be taken into consideration before deciding about contaminated sediment management. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0370-44672014000200004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0370-44672014000200004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0370-44672014000200004 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Escola de Minas |
publisher.none.fl_str_mv |
Escola de Minas |
dc.source.none.fl_str_mv |
Rem: Revista Escola de Minas v.67 n.2 2014 reponame:REM. Revista Escola de Minas (Online) instname:Escola de Minas instacron:ESCOLA DE MINAS |
instname_str |
Escola de Minas |
instacron_str |
ESCOLA DE MINAS |
institution |
ESCOLA DE MINAS |
reponame_str |
REM. Revista Escola de Minas (Online) |
collection |
REM. Revista Escola de Minas (Online) |
repository.name.fl_str_mv |
REM. Revista Escola de Minas (Online) - Escola de Minas |
repository.mail.fl_str_mv |
editor@rem.com.br |
_version_ |
1754122198696591360 |