GEOACCUMULATION INDEX OF MERCURY ON IGARAPÉ OF EDUCANDOS BASIN (MANAUS/AMAZONAS)

Detalhes bibliográficos
Autor(a) principal: Torrezani, Larissa
Data de Publicação: 2016
Outros Autores: Sargentini Junior, Ézio, de Oliveira, Cássio Augusto, Santana, Genilson Pereira
Tipo de documento: Artigo
Idioma: por
Título da fonte: The Journal of Engineering and Exact Sciences
Texto Completo: https://periodicos.ufv.br/jcec/article/view/2446941602023016161
Resumo: The Amazon is a region known worldwide for its biodiversity, but also has high mercury levels in various compartments of the environment. In this work, Hg was determined in sediment of Educandos Basin, one of the most populated regions of Manaus (AM), in order to establish the surface distribution of the contaminant in coarse and fine fractions. Surface sediment samples were collected in nine locations in the basin; three sources of the main stream and the rest in areas contaminated by human activity. Mercury concentrations were determined in raw samples (total fraction) and dried <63?m (fine fraction) by Direct Mercury Analyzer (DMA-80). The results revealed a concentration of Hg in the springs of 0.24 mg kg-1, higher than the alarm values ??of guidelines for assessing the quality of sediments (SGQ). The other sampled points revealed enrichment Hg, varying the geoaccumulation index of moderate to heavily polluted at an early point of the stream the low to moderately polluted in other points.
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spelling GEOACCUMULATION INDEX OF MERCURY ON IGARAPÉ OF EDUCANDOS BASIN (MANAUS/AMAZONAS)ÍNDICE DE GEOACUMULAÇÃO DE MERCÚRIO NA BACIA DO IGARAPÉ DO EDUCANDOS (MANAUS/AMAZONAS)MercuryDMAGeoaccumulation IndexMercúrioDMAÍndice de Geoacumulação.The Amazon is a region known worldwide for its biodiversity, but also has high mercury levels in various compartments of the environment. In this work, Hg was determined in sediment of Educandos Basin, one of the most populated regions of Manaus (AM), in order to establish the surface distribution of the contaminant in coarse and fine fractions. Surface sediment samples were collected in nine locations in the basin; three sources of the main stream and the rest in areas contaminated by human activity. Mercury concentrations were determined in raw samples (total fraction) and dried <63?m (fine fraction) by Direct Mercury Analyzer (DMA-80). The results revealed a concentration of Hg in the springs of 0.24 mg kg-1, higher than the alarm values ??of guidelines for assessing the quality of sediments (SGQ). The other sampled points revealed enrichment Hg, varying the geoaccumulation index of moderate to heavily polluted at an early point of the stream the low to moderately polluted in other points.A Amazônia é uma região conhecida mundialmente por sua biodiversidade, mas também por apresentar altos níveis de Hg em diversos compartimentos do ambiente. Neste trabalho, o Hg foi determinado em sedimento da Bacia do Educandos, uma das regiões mais habitadas de Manaus (AM), a fim de estabelecer a distribuição superficial deste contaminante nas frações grosseiras e fina. Amostras de sedimento superficial foram coletadas em nove locais da bacia; três de nascentes do igarapé principal e o restante em áreas contaminadas pela atividade antrópica. As concentrações de Hg foram determinadas em amostras brutas (fração total) e secas < 63µm (fração fina) por Direct Mercury Analyzer (DMA-80). Os resultados revelaram uma concentração de Hg nas nascentes de 0,24 mg kg-1, superior aos valores de alarme das diretrizes para avaliação da qualidade de sedimentos (do inglês, sediment quality guidelines, SGQs). Os demais pontos amostrados revelaram enriquecimento de Hg, variando o índice de geoacumulação de moderado a fortemente poluído em um ponto inicial do igarapé a pouco a moderadamente poluídos nos demais pontos.Universidade Federal de Viçosa - UFV2016-08-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/kswpshttps://periodicos.ufv.br/jcec/article/view/244694160202301616110.18540/jcecvl2iss3pp161-170The Journal of Engineering and Exact Sciences; Vol. 2 No. 3 (2016); 161-170The Journal of Engineering and Exact Sciences; Vol. 2 Núm. 3 (2016); 161-170The Journal of Engineering and Exact Sciences; v. 2 n. 3 (2016); 161-1702527-1075reponame:The Journal of Engineering and Exact Sciencesinstname:Universidade Federal de Viçosa (UFV)instacron:UFVporhttps://periodicos.ufv.br/jcec/article/view/2446941602023016161/pdfTorrezani, LarissaSargentini Junior, Éziode Oliveira, Cássio AugustoSantana, Genilson Pereirainfo:eu-repo/semantics/openAccess2020-07-14T22:45:16Zoai:ojs.periodicos.ufv.br:article/2177Revistahttp://www.seer.ufv.br/seer/rbeq2/index.php/req2/oai2527-10752527-1075opendoar:2020-07-14T22:45:16The Journal of Engineering and Exact Sciences - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv GEOACCUMULATION INDEX OF MERCURY ON IGARAPÉ OF EDUCANDOS BASIN (MANAUS/AMAZONAS)
ÍNDICE DE GEOACUMULAÇÃO DE MERCÚRIO NA BACIA DO IGARAPÉ DO EDUCANDOS (MANAUS/AMAZONAS)
title GEOACCUMULATION INDEX OF MERCURY ON IGARAPÉ OF EDUCANDOS BASIN (MANAUS/AMAZONAS)
spellingShingle GEOACCUMULATION INDEX OF MERCURY ON IGARAPÉ OF EDUCANDOS BASIN (MANAUS/AMAZONAS)
Torrezani, Larissa
Mercury
DMA
Geoaccumulation Index
Mercúrio
DMA
Índice de Geoacumulação.
title_short GEOACCUMULATION INDEX OF MERCURY ON IGARAPÉ OF EDUCANDOS BASIN (MANAUS/AMAZONAS)
title_full GEOACCUMULATION INDEX OF MERCURY ON IGARAPÉ OF EDUCANDOS BASIN (MANAUS/AMAZONAS)
title_fullStr GEOACCUMULATION INDEX OF MERCURY ON IGARAPÉ OF EDUCANDOS BASIN (MANAUS/AMAZONAS)
title_full_unstemmed GEOACCUMULATION INDEX OF MERCURY ON IGARAPÉ OF EDUCANDOS BASIN (MANAUS/AMAZONAS)
title_sort GEOACCUMULATION INDEX OF MERCURY ON IGARAPÉ OF EDUCANDOS BASIN (MANAUS/AMAZONAS)
author Torrezani, Larissa
author_facet Torrezani, Larissa
Sargentini Junior, Ézio
de Oliveira, Cássio Augusto
Santana, Genilson Pereira
author_role author
author2 Sargentini Junior, Ézio
de Oliveira, Cássio Augusto
Santana, Genilson Pereira
author2_role author
author
author
dc.contributor.author.fl_str_mv Torrezani, Larissa
Sargentini Junior, Ézio
de Oliveira, Cássio Augusto
Santana, Genilson Pereira
dc.subject.por.fl_str_mv Mercury
DMA
Geoaccumulation Index
Mercúrio
DMA
Índice de Geoacumulação.
topic Mercury
DMA
Geoaccumulation Index
Mercúrio
DMA
Índice de Geoacumulação.
description The Amazon is a region known worldwide for its biodiversity, but also has high mercury levels in various compartments of the environment. In this work, Hg was determined in sediment of Educandos Basin, one of the most populated regions of Manaus (AM), in order to establish the surface distribution of the contaminant in coarse and fine fractions. Surface sediment samples were collected in nine locations in the basin; three sources of the main stream and the rest in areas contaminated by human activity. Mercury concentrations were determined in raw samples (total fraction) and dried <63?m (fine fraction) by Direct Mercury Analyzer (DMA-80). The results revealed a concentration of Hg in the springs of 0.24 mg kg-1, higher than the alarm values ??of guidelines for assessing the quality of sediments (SGQ). The other sampled points revealed enrichment Hg, varying the geoaccumulation index of moderate to heavily polluted at an early point of the stream the low to moderately polluted in other points.
publishDate 2016
dc.date.none.fl_str_mv 2016-08-29
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufv.br/jcec/article/view/2446941602023016161
10.18540/jcecvl2iss3pp161-170
url https://periodicos.ufv.br/jcec/article/view/2446941602023016161
identifier_str_mv 10.18540/jcecvl2iss3pp161-170
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufv.br/jcec/article/view/2446941602023016161/pdf
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/kswps
dc.publisher.none.fl_str_mv Universidade Federal de Viçosa - UFV
publisher.none.fl_str_mv Universidade Federal de Viçosa - UFV
dc.source.none.fl_str_mv The Journal of Engineering and Exact Sciences; Vol. 2 No. 3 (2016); 161-170
The Journal of Engineering and Exact Sciences; Vol. 2 Núm. 3 (2016); 161-170
The Journal of Engineering and Exact Sciences; v. 2 n. 3 (2016); 161-170
2527-1075
reponame:The Journal of Engineering and Exact Sciences
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str The Journal of Engineering and Exact Sciences
collection The Journal of Engineering and Exact Sciences
repository.name.fl_str_mv The Journal of Engineering and Exact Sciences - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv
_version_ 1808845242436157440

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