Hazard assessment of groundwater contamination by point sources in the cities of Vale do Taquari - RS

Assessing the risk of aquifer contamination is an important tool for groundwater quality protection and management for the allocation of new business, the installation of wells and the delimitation of areas of greatest danger. The Vale do Taquari region has 432 wells pumped and equipped, extracting...

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Detalhes bibliográficos
Autor: Capalonga, Suélen
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Brasil
Recursos:Associação Brasileira de Águas Subterrâneas
Repositorio:Águas Subterrâneas (São Paulo. Online)
Idioma:portugués
OAI Identifier:oai:ojs.aguassubterraneas.abas.org:article/29600
Acesso em linha:https://aguassubterraneas.abas.org/asubterraneas/article/view/29600
Access Level:acceso abierto
Palavra-chave:DRASTIC . POSH . contamination . underground water.
DRASTIC. POSH. contaminação. água subterrânea
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spelling Hazard assessment of groundwater contamination by point sources in the cities of Vale do Taquari - RSAvaliação do perigo de contaminação das águas subterrâneas por fontes pontuais nos municípios do Vale do Taquari – RSDRASTIC . POSH . contamination . underground water.DRASTIC. POSH. contaminação. água subterrâneaAssessing the risk of aquifer contamination is an important tool for groundwater quality protection and management for the allocation of new business, the installation of wells and the delimitation of areas of greatest danger. The Vale do Taquari region has 432 wells pumped and equipped, extracting water mainly for domestic and animal supplies. Therefore, it is essential to map the danger of groundwater contamination, which comprises the overlap of two maps, the natural vulnerability of the aquifer, obtained by the DRASTIC method, and the potential sources of contamination, classified according to the POSH method. The results show that the largest representation in the vulnerability map is moderate, with 79%, followed by reduced, 16%, and high 5%. The multiplication between the maps showed that the moderate hazard classification corresponds to 46% of the analyzed area, followed by reduced with 38%, negligible with 10% and finally 6% with high index, concentrated in the city of Estrela. In addition it was found that 56 wells are in the analyzed areas. This work is expected to be important for municipalities in order to preserve areas of high vulnerability, as well as to alert areas with a high risk of contamination. And that serves as motivation for the detailed mapping of indices, soils and geology of the Vale do Taquari region.Avaliar o risco de contaminação dos aquíferos é uma importante ferramenta para a proteção da qualidade da água subterrânea, e como gestão para a alocação de novos empreendimentos, instalação de poços e delimitação de áreas de maior perigo. A região do Vale do Taquari apresenta 432 poços em situação de bombeamento e equipados, extraindo água principalmente para abastecimento doméstico e animal. Por isso, é fundamental mapear o perigo de contaminação da água subterrânea, que compreende a sobreposição de dois mapas, o de vulnerabilidade natural do aquífero, obtido através do método DRASTIC, e o das fontes potenciais de contaminação, classificadas de acordo com o método POSH. Os resultados demonstram que a maior representatividade no mapa de vulnerabilidade pertence ao valor moderado, com 79%, seguido por reduzido, com 16%, e elevado 5%. A multiplicação entre os mapas evidenciou que a classificação de perigo moderada corresponde a 46% da área analisada, seguida por reduzido com 38%, desprezível com 10% e por fim 6% com índice elevado, concentrado no município de Estrela. Além disso foi possível constatar que 56 poços se encontram nas zonas analisadas. Espera-se que esse trabalho seja importante para os municípios com o intuito de preservar as áreas de elevada vulnerabilidade, assim como alertar áreas com alto perigo de contaminação. E que sirva de motivação para o detalhamento do mapeamento de índices, solos e geologia da região do Vale do Taquari. ABAS - Associação Brasileira de Águas Subterrâneas2019-09-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionEstudos de Caso e Notas Técnicasapplication/pdfhttps://aguassubterraneas.abas.org/asubterraneas/article/view/2960010.14295/ras.v33i4.29600Águas Subterrâneas; v. 33 n. 4 (2019): REVISTA ÁGUAS SUBTERRÂNEAS2179-97840101-7004reponame:Águas Subterrâneas (São Paulo. Online)instname:Associação Brasileira de Águas Subterrâneasinstacron:ABASporhttps://aguassubterraneas.abas.org/asubterraneas/article/view/29600/19119Copyright (c) 2019 Águas Subterrâneasinfo:eu-repo/semantics/openAccessCapalonga, Suélen2019-12-11T21:58:45Zoai:ojs.aguassubterraneas.abas.org:article/29600Revistahttps://aguassubterraneas.abas.org/asubterraneas/ONGhttps://aguassubterraneas.abas.org/asubterraneas/oaihidropaulo@gmail.com2179-97840101-7004opendoar:2019-12-11T21:58:45Águas Subterrâneas (São Paulo. Online) - Associação Brasileira de Águas Subterrâneasfalse
dc.title.none.fl_str_mv Hazard assessment of groundwater contamination by point sources in the cities of Vale do Taquari - RS
Avaliação do perigo de contaminação das águas subterrâneas por fontes pontuais nos municípios do Vale do Taquari – RS
title Hazard assessment of groundwater contamination by point sources in the cities of Vale do Taquari - RS
spellingShingle Hazard assessment of groundwater contamination by point sources in the cities of Vale do Taquari - RS
Capalonga, Suélen
DRASTIC . POSH . contamination . underground water.
DRASTIC. POSH. contaminação. água subterrânea
title_short Hazard assessment of groundwater contamination by point sources in the cities of Vale do Taquari - RS
title_full Hazard assessment of groundwater contamination by point sources in the cities of Vale do Taquari - RS
title_fullStr Hazard assessment of groundwater contamination by point sources in the cities of Vale do Taquari - RS
title_full_unstemmed Hazard assessment of groundwater contamination by point sources in the cities of Vale do Taquari - RS
title_sort Hazard assessment of groundwater contamination by point sources in the cities of Vale do Taquari - RS
dc.creator.none.fl_str_mv Capalonga, Suélen
author Capalonga, Suélen
author_facet Capalonga, Suélen
author_role author
dc.subject.por.fl_str_mv DRASTIC . POSH . contamination . underground water.
DRASTIC. POSH. contaminação. água subterrânea
topic DRASTIC . POSH . contamination . underground water.
DRASTIC. POSH. contaminação. água subterrânea
description Assessing the risk of aquifer contamination is an important tool for groundwater quality protection and management for the allocation of new business, the installation of wells and the delimitation of areas of greatest danger. The Vale do Taquari region has 432 wells pumped and equipped, extracting water mainly for domestic and animal supplies. Therefore, it is essential to map the danger of groundwater contamination, which comprises the overlap of two maps, the natural vulnerability of the aquifer, obtained by the DRASTIC method, and the potential sources of contamination, classified according to the POSH method. The results show that the largest representation in the vulnerability map is moderate, with 79%, followed by reduced, 16%, and high 5%. The multiplication between the maps showed that the moderate hazard classification corresponds to 46% of the analyzed area, followed by reduced with 38%, negligible with 10% and finally 6% with high index, concentrated in the city of Estrela. In addition it was found that 56 wells are in the analyzed areas. This work is expected to be important for municipalities in order to preserve areas of high vulnerability, as well as to alert areas with a high risk of contamination. And that serves as motivation for the detailed mapping of indices, soils and geology of the Vale do Taquari region.
publishDate 2019
dc.date.none.fl_str_mv 2019-09-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Estudos de Caso e Notas Técnicas
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://aguassubterraneas.abas.org/asubterraneas/article/view/29600
10.14295/ras.v33i4.29600
url https://aguassubterraneas.abas.org/asubterraneas/article/view/29600
identifier_str_mv 10.14295/ras.v33i4.29600
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://aguassubterraneas.abas.org/asubterraneas/article/view/29600/19119
dc.rights.driver.fl_str_mv Copyright (c) 2019 Águas Subterrâneas
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 Águas Subterrâneas
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ABAS - Associação Brasileira de Águas Subterrâneas
publisher.none.fl_str_mv ABAS - Associação Brasileira de Águas Subterrâneas
dc.source.none.fl_str_mv Águas Subterrâneas; v. 33 n. 4 (2019): REVISTA ÁGUAS SUBTERRÂNEAS
2179-9784
0101-7004
reponame:Águas Subterrâneas (São Paulo. Online)
instname:Associação Brasileira de Águas Subterrâneas
instacron:ABAS
instname_str Associação Brasileira de Águas Subterrâneas
instacron_str ABAS
institution ABAS
reponame_str Águas Subterrâneas (São Paulo. Online)
collection Águas Subterrâneas (São Paulo. Online)
repository.name.fl_str_mv Águas Subterrâneas (São Paulo. Online) - Associação Brasileira de Águas Subterrâneas
repository.mail.fl_str_mv hidropaulo@gmail.com
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score 15,223283

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