Avaliação dos fluxos das principais espécies quimicas dissolvidas no rio Sorocaba (SP)
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/228381 |
Resumo: | FLUXES EVALUATION OF MAIN CHEMICAL SPECIES DISSOLVED IN THE SOROCABA RIVER (SP). This study aimed to characterize the hydrochemistry of the main chemical species dissolved in the Sorocaba River, as well as evaluate their fluxes in a hydrological cycle and during dry and rainy periods. Between June 2009 and June 2010, twelve river water samples were collected, which showed near neutral pH (6.9 to 7.3) and a marked seasonal variation of conductivity, temperature and concentration of chemical species studied. The regression models adjusted to concentration x discharge relationship were significant (p < 0,01) and indicated an association of Ca2+, Mg2+, K+, HCO3 - and TDS to diffuse sources and Na+, NO3 - and PO4 3- the punctual sources, without clearly identifying the predominant contributions of SiO2, Cl- and SO4 2-. A comparative analysis of the exponents of the adjusted models proposed, which confirmed previous associations and related SiO2, Cl- and SO4 2- to a mix of sources. The dissolved load contribution of the Sorocaba River to Middle Tietê basin was 392.16 x 103 t a-1, the most significant being those of HCO3 - and SiO2, followed by Ca2+, Na+, Cl-, SO4 2-, NO3 -, K+, Mg2+ and PO4 3-, order maintained in the dry and rainy periods, with exception of NO3-which showed similar charge in the three periods. |
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Avaliação dos fluxos das principais espécies quimicas dissolvidas no rio Sorocaba (SP)Fluxes evaluation of main chemical species dissolved in the Sorocaba river (SP)FLUXES EVALUATION OF MAIN CHEMICAL SPECIES DISSOLVED IN THE SOROCABA RIVER (SP). This study aimed to characterize the hydrochemistry of the main chemical species dissolved in the Sorocaba River, as well as evaluate their fluxes in a hydrological cycle and during dry and rainy periods. Between June 2009 and June 2010, twelve river water samples were collected, which showed near neutral pH (6.9 to 7.3) and a marked seasonal variation of conductivity, temperature and concentration of chemical species studied. The regression models adjusted to concentration x discharge relationship were significant (p < 0,01) and indicated an association of Ca2+, Mg2+, K+, HCO3 - and TDS to diffuse sources and Na+, NO3 - and PO4 3- the punctual sources, without clearly identifying the predominant contributions of SiO2, Cl- and SO4 2-. A comparative analysis of the exponents of the adjusted models proposed, which confirmed previous associations and related SiO2, Cl- and SO4 2- to a mix of sources. The dissolved load contribution of the Sorocaba River to Middle Tietê basin was 392.16 x 103 t a-1, the most significant being those of HCO3 - and SiO2, followed by Ca2+, Na+, Cl-, SO4 2-, NO3 -, K+, Mg2+ and PO4 3-, order maintained in the dry and rainy periods, with exception of NO3-which showed similar charge in the three periods.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Departamento de Engenharia Civil Faculdade de Engenharia de Bauru Universidade Estadual Paulista “Júlio de Mesquita Filho, Avenida Engenheiro Luiz Edmundo Carrijo Coube, 14-01Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista “Júlio de Mesquita Filho, Avenida 24-A, 1515, Caixa Postal 178Instituto de Ciência e Tecnologia Universidade Federal de Alfenas, BR 267, km 533, Rodovia José Aurélio Vilela, 11.999, Cidade UniversitáriaCentro de Energia Nuclear na Agricultura Universidade de São Paulo, Avenida Centenário, 303, Caixa Postal 96Departamento de Engenharia Civil Faculdade de Engenharia de Bauru Universidade Estadual Paulista “Júlio de Mesquita Filho, Avenida Engenheiro Luiz Edmundo Carrijo Coube, 14-01Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista “Júlio de Mesquita Filho, Avenida 24-A, 1515, Caixa Postal 178CAPES: 08/09369-9FAPESP: 08/57104-4CNPq: 134169/2009-3Universidade Estadual Paulista (UNESP)Universidade Federal de AlfenasUniversidade de São Paulo (USP)Fernandes, Alexandre Martins [UNESP]Conceição, Fabiano Tomazini da [UNESP]Spatti Junior, Eder Paulo [UNESP]Guedes Junior, Edvaldo [UNESP]Sardinha, Diego de SouzaMortatti, Jefferson2022-04-29T08:14:24Z2022-04-29T08:14:24Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-12Geociencias, v. 36, n. 1, p. 1-12, 2017.1980-900X0101-9082http://hdl.handle.net/11449/2283812-s2.0-85027355546Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporGeocienciasinfo:eu-repo/semantics/openAccess2024-06-28T12:56:29Zoai:repositorio.unesp.br:11449/228381Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:56:28.186136Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Avaliação dos fluxos das principais espécies quimicas dissolvidas no rio Sorocaba (SP) Fluxes evaluation of main chemical species dissolved in the Sorocaba river (SP) |
title |
Avaliação dos fluxos das principais espécies quimicas dissolvidas no rio Sorocaba (SP) |
spellingShingle |
Avaliação dos fluxos das principais espécies quimicas dissolvidas no rio Sorocaba (SP) Fernandes, Alexandre Martins [UNESP] |
title_short |
Avaliação dos fluxos das principais espécies quimicas dissolvidas no rio Sorocaba (SP) |
title_full |
Avaliação dos fluxos das principais espécies quimicas dissolvidas no rio Sorocaba (SP) |
title_fullStr |
Avaliação dos fluxos das principais espécies quimicas dissolvidas no rio Sorocaba (SP) |
title_full_unstemmed |
Avaliação dos fluxos das principais espécies quimicas dissolvidas no rio Sorocaba (SP) |
title_sort |
Avaliação dos fluxos das principais espécies quimicas dissolvidas no rio Sorocaba (SP) |
author |
Fernandes, Alexandre Martins [UNESP] |
author_facet |
Fernandes, Alexandre Martins [UNESP] Conceição, Fabiano Tomazini da [UNESP] Spatti Junior, Eder Paulo [UNESP] Guedes Junior, Edvaldo [UNESP] Sardinha, Diego de Souza Mortatti, Jefferson |
author_role |
author |
author2 |
Conceição, Fabiano Tomazini da [UNESP] Spatti Junior, Eder Paulo [UNESP] Guedes Junior, Edvaldo [UNESP] Sardinha, Diego de Souza Mortatti, Jefferson |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal de Alfenas Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Fernandes, Alexandre Martins [UNESP] Conceição, Fabiano Tomazini da [UNESP] Spatti Junior, Eder Paulo [UNESP] Guedes Junior, Edvaldo [UNESP] Sardinha, Diego de Souza Mortatti, Jefferson |
description |
FLUXES EVALUATION OF MAIN CHEMICAL SPECIES DISSOLVED IN THE SOROCABA RIVER (SP). This study aimed to characterize the hydrochemistry of the main chemical species dissolved in the Sorocaba River, as well as evaluate their fluxes in a hydrological cycle and during dry and rainy periods. Between June 2009 and June 2010, twelve river water samples were collected, which showed near neutral pH (6.9 to 7.3) and a marked seasonal variation of conductivity, temperature and concentration of chemical species studied. The regression models adjusted to concentration x discharge relationship were significant (p < 0,01) and indicated an association of Ca2+, Mg2+, K+, HCO3 - and TDS to diffuse sources and Na+, NO3 - and PO4 3- the punctual sources, without clearly identifying the predominant contributions of SiO2, Cl- and SO4 2-. A comparative analysis of the exponents of the adjusted models proposed, which confirmed previous associations and related SiO2, Cl- and SO4 2- to a mix of sources. The dissolved load contribution of the Sorocaba River to Middle Tietê basin was 392.16 x 103 t a-1, the most significant being those of HCO3 - and SiO2, followed by Ca2+, Na+, Cl-, SO4 2-, NO3 -, K+, Mg2+ and PO4 3-, order maintained in the dry and rainy periods, with exception of NO3-which showed similar charge in the three periods. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2022-04-29T08:14:24Z 2022-04-29T08:14:24Z |
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.uri.fl_str_mv |
Geociencias, v. 36, n. 1, p. 1-12, 2017. 1980-900X 0101-9082 http://hdl.handle.net/11449/228381 2-s2.0-85027355546 |
identifier_str_mv |
Geociencias, v. 36, n. 1, p. 1-12, 2017. 1980-900X 0101-9082 2-s2.0-85027355546 |
url |
http://hdl.handle.net/11449/228381 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Geociencias |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-12 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808128439352295424 |