Temporal dynamics of water quality in an urban stream

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorBega, João Miguel Merces-
Autor(es): dc.creatorde Oliveira, Jefferson Nascimento-
Autor(es): dc.creatorAlbertin, Liliane Lazzari-
Data de aceite: dc.date.accessioned2025-08-21T16:37:55Z-
Data de disponibilização: dc.date.available2025-08-21T16:37:55Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/S1413-415220200163-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233914-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233914-
Descrição: dc.descriptionUrbanization leads to the addition of areas of low permeability in watersheds, which results in an increase in the volume of rainwater drained superficially and, consequently, in the expansion of pollutants carried to the receiving watercourses, which may impair the quality of their waters. The main objective of this research was to analyze the variation in water quality throughout the day in a stream impacted by urban areas through the water quality index (WQICETESB) and the parameters involved in its calculation. Sample collection was performed once a month, for a period of seven months, at the following times: 8:00 am, 2:00 pm, and 7:00 pm. In general, low concentrations of dissolved oxygen and high levels of organic matter and nutrients were found in the stream evaluated. Sampling at different times of the day was efficient in terms of understanding the anthropic processes that take place in the studied sub-basin (e.g., the release of fresh domestic sewage and intense phosphorus input in the morning). In addition, a significant fluctuation in the value of the WQICETESB was observed between the three periods of the day, as in June 2018: 52 (morning) and 23 (night). Thus, the evaluation of the WQICETESB conducted in only one hour of the day can pass on essential information for environmental managers, resulting in an erroneous view of the problem.-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho”-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho”-
Formato: dc.format903-913-
Idioma: dc.languagept_BR-
Relação: dc.relationEngenharia Sanitaria e Ambiental-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectEnvironmental degradation-
Palavras-chave: dc.subjectNonpoint pollution-
Palavras-chave: dc.subjectWater quality index-
Título: dc.titleTemporal dynamics of water quality in an urban stream-
Título: dc.titleDinâmica temporal da qualidade da água em um córrego urbano-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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