Seasonal and spatial distribution of caffeine, atrazine, atenolol and DEET in surface and drinking waters from the Brazilian Federal District

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorSodré, Fernando Fabriz-
Autor(es): dc.creatorSantana, Joyce da Silva-
Autor(es): dc.creatorSampaio, Thiago Rosa-
Autor(es): dc.creatorBrandão, Cristina Célia Silveira-
Data de aceite: dc.date.accessioned2024-10-23T16:04:06Z-
Data de disponibilização: dc.date.available2024-10-23T16:04:06Z-
Data de envio: dc.date.issued2019-01-02-
Data de envio: dc.date.issued2019-01-02-
Data de envio: dc.date.issued2018-
Fonte completa do material: dc.identifierhttp://repositorio.unb.br/handle/10482/33451-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.21577/0103-5053.20180061-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/898983-
Descrição: dc.descriptionSelected emerging contaminants in water samples from the Brazilian capital were investigated by liquid chromatography-mass spectrometry after solid-phase extraction. In Paranoá Lake, an urban reservoir that will be used to produce drinking water, caffeine was the most abundant contaminant found (average of 53 ng L-1), followed by atenolol (34 ng L-1), N, N -diethyl-meta -toluamide (DEET, 12 ng L-1) and atrazine (3.8 ng L-1). The role of wastewaters discharges could not be evidenced probably due to the water flow and circulation in the lake. However, higher concentrations were detected during the dry season suggesting the presence of point sources, except for atrazine. In source waters, concentrations were lower in comparison with Paranoá Lake waters. Environmental risk assessment shows the need for further surveys for atrazine. For drinking waters, only caffeine and atrazine were detected at average concentrations of 8.6 and 3.2 ng L-1, respectively. No risk for human health was observed.-
Descrição: dc.descriptionInstituto de Química (IQ)-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherSociedade Brasileira de Química-
Direitos: dc.rightsAcesso Aberto-
Direitos: dc.rights(CC BY) - This is an open-access article distributed under the terms of the Creative Commons Attribution License-
Palavras-chave: dc.subjectÁgua - contaminação-
Palavras-chave: dc.subjectMicropoluentes-
Palavras-chave: dc.subjectAbastecimento de água-
Palavras-chave: dc.subjectÁgua potável-
Palavras-chave: dc.subjectÁgua - reutilização-
Título: dc.titleSeasonal and spatial distribution of caffeine, atrazine, atenolol and DEET in surface and drinking waters from the Brazilian Federal District-
Tipo de arquivo: dc.typelivro digital-
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