Evaluation of the microbiological quality of the water of the middle course of the river Itapecuru, state of Maranhão, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/28824 |
Resumo: | Permanent monitoring and evaluation of water bodies in urban and suburban areas are essential to control water quality. The objective of this research was to evaluate the microbiological quality of the water of the river Itapecuru in the course that runs through the city of Caxias-MA. To carry out the microbiological analysis of the water, the methodology of multiple tubes was used, which is indicated for the determination of microorganisms, such as total coliforms and thermotolerant coliforms. Initially, the presumptive test was performed, in which the positive tubes of this stage (tubes that showed lactose fermentation and gas production) were recorded and from them, the confirmatory test and the complementary test were followed. In the result of the presumptive test, the readings varied between 240 and >1,600 MPN/100 ml, in the confirmatory test for total coliforms and in the complementary test (Escherichia coli-EC) for thermotolerant coliforms, there was a variation between 14 and 1600 MPN/100 ml for both the tests. It is concluded that the upstream and central points of the river were classified as suitable and excellent for bathing and the downstream point as inappropriate. |
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Evaluation of the microbiological quality of the water of the middle course of the river Itapecuru, state of Maranhão, Brazil Evaluación de la calidad microbiológica del agua del curso medio del río Itapecuru, estado de Maranhão, Brasil Avaliação da qualidade microbiológica da água do médio curso do rio Itapecuru, estado do Maranhão, Brasil Análise da águaColiformesBacia hidrográfica do Itapecuru.Analisis del aguaColiformesCuenca hidrográfica de Itapecuru.Water analysisColiformsItapecuru watershed.Permanent monitoring and evaluation of water bodies in urban and suburban areas are essential to control water quality. The objective of this research was to evaluate the microbiological quality of the water of the river Itapecuru in the course that runs through the city of Caxias-MA. To carry out the microbiological analysis of the water, the methodology of multiple tubes was used, which is indicated for the determination of microorganisms, such as total coliforms and thermotolerant coliforms. Initially, the presumptive test was performed, in which the positive tubes of this stage (tubes that showed lactose fermentation and gas production) were recorded and from them, the confirmatory test and the complementary test were followed. In the result of the presumptive test, the readings varied between 240 and >1,600 MPN/100 ml, in the confirmatory test for total coliforms and in the complementary test (Escherichia coli-EC) for thermotolerant coliforms, there was a variation between 14 and 1600 MPN/100 ml for both the tests. It is concluded that the upstream and central points of the river were classified as suitable and excellent for bathing and the downstream point as inappropriate.El monitoreo y evaluación permanente de los cuerpos de agua en áreas urbanas y suburbanas son esenciales para controlar la calidad del agua. El objetivo de esta investigación fue evaluar la calidad microbiológica del agua del río Itapecuru en el curso que atraviesa la ciudad de Caxias-MA. Para realizar el análisis microbiológico del agua se utilizó la metodología de tubos múltiples, la cual es indicada para la determinación de microorganismos, como coliformes totales y coliformes termotolerantes. Inicialmente se realizó la prueba presuntiva, en la cual se registraron los tubos positivos de esta etapa (tubos que mostraban fermentación de lactosa y producción de gas) ya partir de ellos se siguió la prueba confirmatoria y la prueba complementaria. En el resultado de la prueba presuntiva las lecturas variaron entre 240 y >1.600 NMP/100 ml, en la prueba confirmatoria para coliformes totales y en la prueba complementaria (Escherichia coli-EC) para coliformes termotolerantes hubo una variación entre 14 y 1600 MPN/100 ml para ambas pruebas. Se concluye que los puntos aguas arriba y central del río fueron catalogados como aptos y excelentes para el baño y el punto aguas abajo como inadecuados.O monitoramento e avaliação permanente dos corpos hídricos em áreas urbanas e suburbanas são essenciais para controlar a qualidade da água. O objetivo dessa pesquisa foi avaliar a qualidade microbiológica da água do rio Itapecuru no curso que percorre a cidade de Caxias-MA. Para a realização das análises microbiológicas da água, foi utilizada a metodologia dos tubos múltiplos, que é indicada para determinação de microrganismos, tais como coliformes totais e coliformes termotolerantes. Inicialmente foi realizado o teste presuntivo, no qual os tubos positivos dessa etapa (tubos que apresentaram fermentação da lactose e produção de gás) foram registrados e a partir deles sucederam-se o teste confirmativo e o teste complementar. No resultado do teste presuntivo as leituras alternaram entre 240 e >1.600 NMP/100 ml, no teste confirmativo para coliformes totais e no teste complementar (Escherichia coli- EC) para coliformes termotolerantes houve uma variação entre 14 e 1600 NMP/100 ml para ambos os testes. Conclui-se que os pontos a montante e central do rio foram classificados como próprio e excelente para balneabilidade e o ponto a jusante como impróprio.Research, Society and Development2022-04-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/2882410.33448/rsd-v11i6.28824Research, Society and Development; Vol. 11 No. 6; e34411628824Research, Society and Development; Vol. 11 Núm. 6; e34411628824Research, Society and Development; v. 11 n. 6; e344116288242525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/28824/25279Copyright (c) 2022 Luciana Rocha Paula; Daniel Limeira Filho; Francisléia Falcão França Santos Siqueira; Letícia da Silva; Camila Braga da Conceição; Slanna Larissa Olimpio Costa; Leandro Josuel da Costa Santos; Francisco Laurindo da Silvahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessPaula, Luciana RochaLimeira Filho, DanielSiqueira, Francisléia Falcão França Santos Silva, Letícia daConceição, Camila Braga daCosta, Slanna Larissa Olimpio Santos, Leandro Josuel da Costa Silva, Francisco Laurindo da2022-05-13T18:04:10Zoai:ojs.pkp.sfu.ca:article/28824Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:46:05.716064Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Evaluation of the microbiological quality of the water of the middle course of the river Itapecuru, state of Maranhão, Brazil Evaluación de la calidad microbiológica del agua del curso medio del río Itapecuru, estado de Maranhão, Brasil Avaliação da qualidade microbiológica da água do médio curso do rio Itapecuru, estado do Maranhão, Brasil |
title |
Evaluation of the microbiological quality of the water of the middle course of the river Itapecuru, state of Maranhão, Brazil |
spellingShingle |
Evaluation of the microbiological quality of the water of the middle course of the river Itapecuru, state of Maranhão, Brazil Paula, Luciana Rocha Análise da água Coliformes Bacia hidrográfica do Itapecuru. Analisis del agua Coliformes Cuenca hidrográfica de Itapecuru. Water analysis Coliforms Itapecuru watershed. |
title_short |
Evaluation of the microbiological quality of the water of the middle course of the river Itapecuru, state of Maranhão, Brazil |
title_full |
Evaluation of the microbiological quality of the water of the middle course of the river Itapecuru, state of Maranhão, Brazil |
title_fullStr |
Evaluation of the microbiological quality of the water of the middle course of the river Itapecuru, state of Maranhão, Brazil |
title_full_unstemmed |
Evaluation of the microbiological quality of the water of the middle course of the river Itapecuru, state of Maranhão, Brazil |
title_sort |
Evaluation of the microbiological quality of the water of the middle course of the river Itapecuru, state of Maranhão, Brazil |
author |
Paula, Luciana Rocha |
author_facet |
Paula, Luciana Rocha Limeira Filho, Daniel Siqueira, Francisléia Falcão França Santos Silva, Letícia da Conceição, Camila Braga da Costa, Slanna Larissa Olimpio Santos, Leandro Josuel da Costa Silva, Francisco Laurindo da |
author_role |
author |
author2 |
Limeira Filho, Daniel Siqueira, Francisléia Falcão França Santos Silva, Letícia da Conceição, Camila Braga da Costa, Slanna Larissa Olimpio Santos, Leandro Josuel da Costa Silva, Francisco Laurindo da |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Paula, Luciana Rocha Limeira Filho, Daniel Siqueira, Francisléia Falcão França Santos Silva, Letícia da Conceição, Camila Braga da Costa, Slanna Larissa Olimpio Santos, Leandro Josuel da Costa Silva, Francisco Laurindo da |
dc.subject.por.fl_str_mv |
Análise da água Coliformes Bacia hidrográfica do Itapecuru. Analisis del agua Coliformes Cuenca hidrográfica de Itapecuru. Water analysis Coliforms Itapecuru watershed. |
topic |
Análise da água Coliformes Bacia hidrográfica do Itapecuru. Analisis del agua Coliformes Cuenca hidrográfica de Itapecuru. Water analysis Coliforms Itapecuru watershed. |
description |
Permanent monitoring and evaluation of water bodies in urban and suburban areas are essential to control water quality. The objective of this research was to evaluate the microbiological quality of the water of the river Itapecuru in the course that runs through the city of Caxias-MA. To carry out the microbiological analysis of the water, the methodology of multiple tubes was used, which is indicated for the determination of microorganisms, such as total coliforms and thermotolerant coliforms. Initially, the presumptive test was performed, in which the positive tubes of this stage (tubes that showed lactose fermentation and gas production) were recorded and from them, the confirmatory test and the complementary test were followed. In the result of the presumptive test, the readings varied between 240 and >1,600 MPN/100 ml, in the confirmatory test for total coliforms and in the complementary test (Escherichia coli-EC) for thermotolerant coliforms, there was a variation between 14 and 1600 MPN/100 ml for both the tests. It is concluded that the upstream and central points of the river were classified as suitable and excellent for bathing and the downstream point as inappropriate. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-30 |
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://rsdjournal.org/index.php/rsd/article/view/28824 10.33448/rsd-v11i6.28824 |
url |
https://rsdjournal.org/index.php/rsd/article/view/28824 |
identifier_str_mv |
10.33448/rsd-v11i6.28824 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/28824/25279 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 11 No. 6; e34411628824 Research, Society and Development; Vol. 11 Núm. 6; e34411628824 Research, Society and Development; v. 11 n. 6; e34411628824 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
_version_ |
1797052765641375744 |