Mercury in the Amazon basin: Human influence or natural geological pattern?
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFPA |
Texto Completo: | http://repositorio.ufpa.br/jspui/handle/2011/11047 https://doi.org/10.1016/j.jsames.2018.06.017 |
Resumo: | One of the main scientific discussions on Hg levels in the Amazon region concerns the possible sources of this element. This research was conducted between 1999 and 2015 in the region between the coastal zone and the Amazonian Continental Shelf (ACS). The total Hg concentration values found in the sediments in ACS ranged from 14 to 160 ng g−1. The main contribution of metallic elements to ACS comes from the sedimentary load transported by the Amazon River basin. Among the main tributaries of the Amazon River, the Negro River, which for decades has had mining activity, and the Madeira River, which is still present today, although currently in decline. The analysis of the total Hg results associated with the suspended solids load, both in the Continental Amazon and ACS, suggest that the anthropogenic influence, although evident in sites sources of pollution, is not the main source of total Hg for ACS, and in this case the participation of the natural contributions should be attributed from the natural geological activity in the regional soil, which is considered as naturally enriched in Hg |
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2019-04-23T20:31:37Z2019-04-23T20:31:37Z2018-06SIQUEIRA, Gilmar Wanzeller et al. Mercury in the Amazon basin: Human influence or natural geological pattern?. Journal of South American Earth Sciences, v. 86, p. 193-199. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/11047. Acesso em:.0895-9811http://repositorio.ufpa.br/jspui/handle/2011/11047https://doi.org/10.1016/j.jsames.2018.06.017One of the main scientific discussions on Hg levels in the Amazon region concerns the possible sources of this element. This research was conducted between 1999 and 2015 in the region between the coastal zone and the Amazonian Continental Shelf (ACS). The total Hg concentration values found in the sediments in ACS ranged from 14 to 160 ng g−1. The main contribution of metallic elements to ACS comes from the sedimentary load transported by the Amazon River basin. Among the main tributaries of the Amazon River, the Negro River, which for decades has had mining activity, and the Madeira River, which is still present today, although currently in decline. The analysis of the total Hg results associated with the suspended solids load, both in the Continental Amazon and ACS, suggest that the anthropogenic influence, although evident in sites sources of pollution, is not the main source of total Hg for ACS, and in this case the participation of the natural contributions should be attributed from the natural geological activity in the regional soil, which is considered as naturally enriched in HgCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorengUniversidade Federal do ParáUFPABrasilJournal of South American Earth Scienceshttps://reader.elsevier.com/reader/sd/pii/S0895981118300634?tokenreponame:Repositório Institucional da UFPAinstname:Universidade Federal do Pará (UFPA)instacron:UFPATotal mercuryMetallic contaminationDepositionGold miningTEL and PELMercury in the Amazon basin: Human influence or natural geological pattern?info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://lattes.cnpq.br/3145792580729701http://lattes.cnpq.br/1880953590403490http://lattes.cnpq.br/4290640868533877SIQUEIRA, Gilmar WanzellerAPRILE, Fabio MarquesIRION, Georg FriedrichBRAGA, Elisabete S.info:eu-repo/semantics/openAccessORIGINALArticle_MercuryAmazonBasin.pdfArticle_MercuryAmazonBasin.pdfapplication/pdf1014492http://repositorio.ufpa.br/oai/bitstream/2011/11047/1/Article_MercuryAmazonBasin.pdf526b74c72bc2c797cd45ea833842920eMD51CC-LICENSElicense_urllicense_urltext/plain; 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dc.title.pt_BR.fl_str_mv |
Mercury in the Amazon basin: Human influence or natural geological pattern? |
title |
Mercury in the Amazon basin: Human influence or natural geological pattern? |
spellingShingle |
Mercury in the Amazon basin: Human influence or natural geological pattern? SIQUEIRA, Gilmar Wanzeller Total mercury Metallic contamination Deposition Gold mining TEL and PEL |
title_short |
Mercury in the Amazon basin: Human influence or natural geological pattern? |
title_full |
Mercury in the Amazon basin: Human influence or natural geological pattern? |
title_fullStr |
Mercury in the Amazon basin: Human influence or natural geological pattern? |
title_full_unstemmed |
Mercury in the Amazon basin: Human influence or natural geological pattern? |
title_sort |
Mercury in the Amazon basin: Human influence or natural geological pattern? |
author |
SIQUEIRA, Gilmar Wanzeller |
author_facet |
SIQUEIRA, Gilmar Wanzeller APRILE, Fabio Marques IRION, Georg Friedrich BRAGA, Elisabete S. |
author_role |
author |
author2 |
APRILE, Fabio Marques IRION, Georg Friedrich BRAGA, Elisabete S. |
author2_role |
author author author |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/3145792580729701 http://lattes.cnpq.br/1880953590403490 http://lattes.cnpq.br/4290640868533877 |
dc.contributor.author.fl_str_mv |
SIQUEIRA, Gilmar Wanzeller APRILE, Fabio Marques IRION, Georg Friedrich BRAGA, Elisabete S. |
dc.subject.por.fl_str_mv |
Total mercury Metallic contamination Deposition Gold mining TEL and PEL |
topic |
Total mercury Metallic contamination Deposition Gold mining TEL and PEL |
description |
One of the main scientific discussions on Hg levels in the Amazon region concerns the possible sources of this element. This research was conducted between 1999 and 2015 in the region between the coastal zone and the Amazonian Continental Shelf (ACS). The total Hg concentration values found in the sediments in ACS ranged from 14 to 160 ng g−1. The main contribution of metallic elements to ACS comes from the sedimentary load transported by the Amazon River basin. Among the main tributaries of the Amazon River, the Negro River, which for decades has had mining activity, and the Madeira River, which is still present today, although currently in decline. The analysis of the total Hg results associated with the suspended solids load, both in the Continental Amazon and ACS, suggest that the anthropogenic influence, although evident in sites sources of pollution, is not the main source of total Hg for ACS, and in this case the participation of the natural contributions should be attributed from the natural geological activity in the regional soil, which is considered as naturally enriched in Hg |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018-06 |
dc.date.accessioned.fl_str_mv |
2019-04-23T20:31:37Z |
dc.date.available.fl_str_mv |
2019-04-23T20:31:37Z |
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.citation.fl_str_mv |
SIQUEIRA, Gilmar Wanzeller et al. Mercury in the Amazon basin: Human influence or natural geological pattern?. Journal of South American Earth Sciences, v. 86, p. 193-199. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/11047. Acesso em:. |
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http://repositorio.ufpa.br/jspui/handle/2011/11047 |
dc.identifier.issn.pt_BR.fl_str_mv |
0895-9811 |
dc.identifier.doi.pt_BR.fl_str_mv |
https://doi.org/10.1016/j.jsames.2018.06.017 |
identifier_str_mv |
SIQUEIRA, Gilmar Wanzeller et al. Mercury in the Amazon basin: Human influence or natural geological pattern?. Journal of South American Earth Sciences, v. 86, p. 193-199. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/11047. Acesso em:. 0895-9811 |
url |
http://repositorio.ufpa.br/jspui/handle/2011/11047 https://doi.org/10.1016/j.jsames.2018.06.017 |
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eng |
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Universidade Federal do Pará |
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Brasil |
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Universidade Federal do Pará |
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