Chemical and bacteriological analysis of the water from drinking fountains located in a Higher Education Institution
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/12145 |
Resumo: | The aim of this study was to evaluate, through chemical and bacteriological parameters, the water quality from drinking fountains at a Federal Higher Education Institution, in different climatic periods. Total coliforms and Escherichia coli were quantified by the enzyme method of the defined substrate; heterotrophic bacteria by plating in depth in Plate Count Agar; pH and chlorine, using commercial kits. The research was conducted in two stages: the first one, referring to the initial analyses during the rainy season, with the verification of the presence of samples in disagreement with the current legislation; and the second, during the dry period, after the corrective measures adopted in function the results obtained in the first stage, totalling 89 samples in both stages, from 49 drinking fountains. In the first stage, bacteriological evaluations showed that 65.3 % of the samples were inadequate, while in the second, the failure rate was 20.4 %. The parameters evaluated in the two stages revealed that there was no significant result (p˃0.05) in relation to pH, total coliforms and Escherichia coli. Unlike what was observed for mesophilic aerobic and chlorine content (p<0.05), which are believed to have been influenced by climatic conditions, with higher rates of non-compliance in the first stage, that is, found in the rainy season. These findings demonstrate the existence of inadequate hygienic-sanitary conditions and the need of frequent monitoring of water quality, as well as the positive impact after the educational intervention and the adoption of preventive and corrective measures, aimed at the safety of the consumer community. |
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Chemical and bacteriological analysis of the water from drinking fountains located in a Higher Education Institution Análisis químico y bacteriológico del agua de los bebederos ubicados en un Instituto de Educación SuperiorAnálise química e bacteriológica da água dos bebedouros localizados em uma Instituição de Ensino SuperiorÁgua potávelAnálise da águaControle da qualidade da água. Agua potableAnálisis de aguaControl de calidad del agua.Drinking waterWater analysisControl of water quality.The aim of this study was to evaluate, through chemical and bacteriological parameters, the water quality from drinking fountains at a Federal Higher Education Institution, in different climatic periods. Total coliforms and Escherichia coli were quantified by the enzyme method of the defined substrate; heterotrophic bacteria by plating in depth in Plate Count Agar; pH and chlorine, using commercial kits. The research was conducted in two stages: the first one, referring to the initial analyses during the rainy season, with the verification of the presence of samples in disagreement with the current legislation; and the second, during the dry period, after the corrective measures adopted in function the results obtained in the first stage, totalling 89 samples in both stages, from 49 drinking fountains. In the first stage, bacteriological evaluations showed that 65.3 % of the samples were inadequate, while in the second, the failure rate was 20.4 %. The parameters evaluated in the two stages revealed that there was no significant result (p˃0.05) in relation to pH, total coliforms and Escherichia coli. Unlike what was observed for mesophilic aerobic and chlorine content (p<0.05), which are believed to have been influenced by climatic conditions, with higher rates of non-compliance in the first stage, that is, found in the rainy season. These findings demonstrate the existence of inadequate hygienic-sanitary conditions and the need of frequent monitoring of water quality, as well as the positive impact after the educational intervention and the adoption of preventive and corrective measures, aimed at the safety of the consumer community.El objetivo de este estudio fue evaluar, a través de parámetros químicos y bacteriológicos, la calidad del agua de los bebederos de un Instituto Federal de Educación Superior, en diferentes períodos climáticos. Los coliformes totales y Escherichia coli se cuantificaron mediante el método enzimático de sustrato definido; las bacterias heterótrofas por siembra profunda en agar estándar para recuento; mientras que el pH y el cloro se determinaron utilizando kits comerciales. La investigación se llevó a cabo en dos etapas: la primera, correspondiente a los análisis iniciales durante la época de lluvias, donde se verificó la presencia de muestras en desacuerdo con la legislación vigente; y la segunda, durante el periodo seco, luego de adoptar las medidas correctivas en función de los resultados obtenidos en la primera etapa, totalizando 89 muestras en las dos etapas, provenientes de 49 bebedores. En la primera etapa, las evaluaciones bacteriológicas revelaron que el 65.3 % de las muestras eran inconformes, mientras que en la segunda la tasa de reprobación fue del 20.4 %. Los parámetros evaluados en ambas etapas revelaron que no hubo diferencia significativa (p˃0.05) con relación al pH, coliformes totales y Escherichia coli. A diferencia de lo observado para los aerobios mesófilos y el contenido de cloro (p<0,05), que se estima fueron influenciados por las condiciones climáticas, presentando mayores tasas de inconformidad durante la primera etapa, es decir, durante la temporada de lluvias. Estos hallazgos demuestran la existencia de condiciones higiénico-sanitarias inadecuadas y la necesidad de un monitoreo frecuente de la calidad del agua, así como el impacto positivo tras la intervención educativa y la adopción de medidas preventivas y correctivas, orientadas a la seguridad de los consumidores.O objetivo deste estudo foi avaliar, por meio de parâmetros químicos e bacteriológicos, a qualidade da água dos bebedouros de uma Instituição Federal de Ensino Superior, em diferentes períodos climáticos. Coliformes totais e Escherichia coli foram quantificados pelo método enzimático do substrato definido; bactérias heterotróficas por plaqueamento em profundidade em Ágar Padrão para Contagem; pH e o cloro, mediante kits comerciais. A pesquisa foi conduzida em duas etapas: a primeira, referente às análises iniciais durante o período chuvoso, com a constatação da presença de amostras em desacordo com a legislação vigente; e a segunda, no decorrer do período seco, após as medidas corretivas adotadas em função dos resultados obtidos na primeira etapa, totalizando 89 amostras nas duas etapas, provenientes de 49 bebedouros. Na primeira etapa, as avaliações bacteriológicas mostraram que 65,3 % das amostras estavam inadequadas, enquanto na segunda, a porcentagem de reprovação foi de 20,4 %. Os parâmetros avaliados nas duas etapas revelaram que não houve resultado significativo (p˃0,05) em relação ao pH, coliformes totais e Escherichia coli. Diferentemente do observado para os aeróbios mesófilos e o teor de cloro (p<0,05), os quais acredita-se que foram influenciados pelas condições climáticas, com maiores índices de não conformidade na primeira etapa, ou seja, no período chuvoso. Estas constatações demonstram a existência de condições higiênico-sanitárias inadequadas e a necessidade de monitoramento frequente da qualidade da água, bem como o impacto positivo após a intervenção educativa e da adoção de medidas preventivas e corretivas, visando a segurança da comunidade consumidora.Research, Society and Development2021-02-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1214510.33448/rsd-v10i2.12145Research, Society and Development; Vol. 10 No. 2; e8010212145Research, Society and Development; Vol. 10 Núm. 2; e8010212145Research, Society and Development; v. 10 n. 2; e80102121452525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/12145/10989Copyright (c) 2021 Josidel Conceição Oliver; Ramon Alves de Oliveira Paula; Sandra Maria Oliveira Morais Veigahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessOliver, Josidel ConceiçãoPaula, Ramon Alves de OliveiraVeiga, Sandra Maria Oliveira Morais2021-03-02T09:32:39Zoai:ojs.pkp.sfu.ca:article/12145Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:33:47.767731Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Chemical and bacteriological analysis of the water from drinking fountains located in a Higher Education Institution Análisis químico y bacteriológico del agua de los bebederos ubicados en un Instituto de Educación Superior Análise química e bacteriológica da água dos bebedouros localizados em uma Instituição de Ensino Superior |
title |
Chemical and bacteriological analysis of the water from drinking fountains located in a Higher Education Institution |
spellingShingle |
Chemical and bacteriological analysis of the water from drinking fountains located in a Higher Education Institution Oliver, Josidel Conceição Água potável Análise da água Controle da qualidade da água. Agua potable Análisis de agua Control de calidad del agua. Drinking water Water analysis Control of water quality. |
title_short |
Chemical and bacteriological analysis of the water from drinking fountains located in a Higher Education Institution |
title_full |
Chemical and bacteriological analysis of the water from drinking fountains located in a Higher Education Institution |
title_fullStr |
Chemical and bacteriological analysis of the water from drinking fountains located in a Higher Education Institution |
title_full_unstemmed |
Chemical and bacteriological analysis of the water from drinking fountains located in a Higher Education Institution |
title_sort |
Chemical and bacteriological analysis of the water from drinking fountains located in a Higher Education Institution |
author |
Oliver, Josidel Conceição |
author_facet |
Oliver, Josidel Conceição Paula, Ramon Alves de Oliveira Veiga, Sandra Maria Oliveira Morais |
author_role |
author |
author2 |
Paula, Ramon Alves de Oliveira Veiga, Sandra Maria Oliveira Morais |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Oliver, Josidel Conceição Paula, Ramon Alves de Oliveira Veiga, Sandra Maria Oliveira Morais |
dc.subject.por.fl_str_mv |
Água potável Análise da água Controle da qualidade da água. Agua potable Análisis de agua Control de calidad del agua. Drinking water Water analysis Control of water quality. |
topic |
Água potável Análise da água Controle da qualidade da água. Agua potable Análisis de agua Control de calidad del agua. Drinking water Water analysis Control of water quality. |
description |
The aim of this study was to evaluate, through chemical and bacteriological parameters, the water quality from drinking fountains at a Federal Higher Education Institution, in different climatic periods. Total coliforms and Escherichia coli were quantified by the enzyme method of the defined substrate; heterotrophic bacteria by plating in depth in Plate Count Agar; pH and chlorine, using commercial kits. The research was conducted in two stages: the first one, referring to the initial analyses during the rainy season, with the verification of the presence of samples in disagreement with the current legislation; and the second, during the dry period, after the corrective measures adopted in function the results obtained in the first stage, totalling 89 samples in both stages, from 49 drinking fountains. In the first stage, bacteriological evaluations showed that 65.3 % of the samples were inadequate, while in the second, the failure rate was 20.4 %. The parameters evaluated in the two stages revealed that there was no significant result (p˃0.05) in relation to pH, total coliforms and Escherichia coli. Unlike what was observed for mesophilic aerobic and chlorine content (p<0.05), which are believed to have been influenced by climatic conditions, with higher rates of non-compliance in the first stage, that is, found in the rainy season. These findings demonstrate the existence of inadequate hygienic-sanitary conditions and the need of frequent monitoring of water quality, as well as the positive impact after the educational intervention and the adoption of preventive and corrective measures, aimed at the safety of the consumer community. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-02-04 |
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/12145 10.33448/rsd-v10i2.12145 |
url |
https://rsdjournal.org/index.php/rsd/article/view/12145 |
identifier_str_mv |
10.33448/rsd-v10i2.12145 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/12145/10989 |
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. 10 No. 2; e8010212145 Research, Society and Development; Vol. 10 Núm. 2; e8010212145 Research, Society and Development; v. 10 n. 2; e8010212145 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 |
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1797052669380001792 |