MERCURY IN THE SEDIMENT OF THE UPPER PARNAÍBA RIVER

Detalhes bibliográficos
Autor(a) principal: Remor,Marcelo B.
Data de Publicação: 2018
Outros Autores: Sampaio,Silvio C., Rosa,Danielle M., Model,Kathleen J., Paloschi,Cristiane L., Conceição,Fagner G. da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Engenharia Agrícola
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500760
Resumo: ABSTRACT The contamination of aquatic environments with chemical trace elements can be evaluated by their accumulation in sediments of the water body. Studies on mercury require the use of exclusive extraction techniques that have relatively high costs when compared to the analysis of other trace elements. This study was conducted aiming at determining the mercury concentration in sediments of the Upper Parnaíba River basin, located in a region of agricultural expansion between the states of Piauí and Maranhão. The sediment was collected at 12 sites in the basin. After drying, the quantification of total mercury was performed by the Zeeman atomic absorption spectrometry coupled to a pyrolysis reactor. Mercury concentrations in sediments of the Parnaíba River ranged from 4.2 to 58.5 ng g−1 and presented a low probability of adverse effects on biota. Mercury had no correlation with the variables clay, silt, sand, total organic carbon, iron, and aluminum, demonstrating its possible anthropogenic origin. Although mercury concentrations have a low probability to disturb the balance of the local ecosystem, there is a need for monitoring the region in order to quantify the risks to biota and human health.
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spelling MERCURY IN THE SEDIMENT OF THE UPPER PARNAÍBA RIVERtrace elementsagricultural frontierheavy metalABSTRACT The contamination of aquatic environments with chemical trace elements can be evaluated by their accumulation in sediments of the water body. Studies on mercury require the use of exclusive extraction techniques that have relatively high costs when compared to the analysis of other trace elements. This study was conducted aiming at determining the mercury concentration in sediments of the Upper Parnaíba River basin, located in a region of agricultural expansion between the states of Piauí and Maranhão. The sediment was collected at 12 sites in the basin. After drying, the quantification of total mercury was performed by the Zeeman atomic absorption spectrometry coupled to a pyrolysis reactor. Mercury concentrations in sediments of the Parnaíba River ranged from 4.2 to 58.5 ng g−1 and presented a low probability of adverse effects on biota. Mercury had no correlation with the variables clay, silt, sand, total organic carbon, iron, and aluminum, demonstrating its possible anthropogenic origin. Although mercury concentrations have a low probability to disturb the balance of the local ecosystem, there is a need for monitoring the region in order to quantify the risks to biota and human health.Associação Brasileira de Engenharia Agrícola2018-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500760Engenharia Agrícola v.38 n.5 2018reponame:Engenharia Agrícolainstname:Associação Brasileira de Engenharia Agrícola (SBEA)instacron:SBEA10.1590/1809-4430-eng.agric.v38n5p760-767/2018info:eu-repo/semantics/openAccessRemor,Marcelo B.Sampaio,Silvio C.Rosa,Danielle M.Model,Kathleen J.Paloschi,Cristiane L.Conceição,Fagner G. daeng2018-10-29T00:00:00Zoai:scielo:S0100-69162018000500760Revistahttp://www.engenhariaagricola.org.br/ORGhttps://old.scielo.br/oai/scielo-oai.phprevistasbea@sbea.org.br||sbea@sbea.org.br1809-44300100-6916opendoar:2018-10-29T00:00Engenharia Agrícola - Associação Brasileira de Engenharia Agrícola (SBEA)false
dc.title.none.fl_str_mv MERCURY IN THE SEDIMENT OF THE UPPER PARNAÍBA RIVER
title MERCURY IN THE SEDIMENT OF THE UPPER PARNAÍBA RIVER
spellingShingle MERCURY IN THE SEDIMENT OF THE UPPER PARNAÍBA RIVER
Remor,Marcelo B.
trace elements
agricultural frontier
heavy metal
title_short MERCURY IN THE SEDIMENT OF THE UPPER PARNAÍBA RIVER
title_full MERCURY IN THE SEDIMENT OF THE UPPER PARNAÍBA RIVER
title_fullStr MERCURY IN THE SEDIMENT OF THE UPPER PARNAÍBA RIVER
title_full_unstemmed MERCURY IN THE SEDIMENT OF THE UPPER PARNAÍBA RIVER
title_sort MERCURY IN THE SEDIMENT OF THE UPPER PARNAÍBA RIVER
author Remor,Marcelo B.
author_facet Remor,Marcelo B.
Sampaio,Silvio C.
Rosa,Danielle M.
Model,Kathleen J.
Paloschi,Cristiane L.
Conceição,Fagner G. da
author_role author
author2 Sampaio,Silvio C.
Rosa,Danielle M.
Model,Kathleen J.
Paloschi,Cristiane L.
Conceição,Fagner G. da
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Remor,Marcelo B.
Sampaio,Silvio C.
Rosa,Danielle M.
Model,Kathleen J.
Paloschi,Cristiane L.
Conceição,Fagner G. da
dc.subject.por.fl_str_mv trace elements
agricultural frontier
heavy metal
topic trace elements
agricultural frontier
heavy metal
description ABSTRACT The contamination of aquatic environments with chemical trace elements can be evaluated by their accumulation in sediments of the water body. Studies on mercury require the use of exclusive extraction techniques that have relatively high costs when compared to the analysis of other trace elements. This study was conducted aiming at determining the mercury concentration in sediments of the Upper Parnaíba River basin, located in a region of agricultural expansion between the states of Piauí and Maranhão. The sediment was collected at 12 sites in the basin. After drying, the quantification of total mercury was performed by the Zeeman atomic absorption spectrometry coupled to a pyrolysis reactor. Mercury concentrations in sediments of the Parnaíba River ranged from 4.2 to 58.5 ng g−1 and presented a low probability of adverse effects on biota. Mercury had no correlation with the variables clay, silt, sand, total organic carbon, iron, and aluminum, demonstrating its possible anthropogenic origin. Although mercury concentrations have a low probability to disturb the balance of the local ecosystem, there is a need for monitoring the region in order to quantify the risks to biota and human health.
publishDate 2018
dc.date.none.fl_str_mv 2018-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500760
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1809-4430-eng.agric.v38n5p760-767/2018
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Engenharia Agrícola
publisher.none.fl_str_mv Associação Brasileira de Engenharia Agrícola
dc.source.none.fl_str_mv Engenharia Agrícola v.38 n.5 2018
reponame:Engenharia Agrícola
instname:Associação Brasileira de Engenharia Agrícola (SBEA)
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