Using Urban Streams as Drinking Water: the Potential Risk in Respect to Polycyclic Aromatic Hydrocarbons (PAHs) Content in Sediments

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dc.contributor.authorNino, Leidy R.
dc.contributor.authorTorres, Ronaldo José [UNIFESP]
dc.contributor.authorMozeto, Antonio A.
dc.contributor.authorFadini, Pedro S.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T14:35:05Z
dc.date.available2016-01-24T14:35:05Z
dc.date.issued2014-01-01
dc.description.abstractSeveral polycyclic aromatic hydrocarbons are considered carcinogenic and mutagenic. 16 of these compounds are listed as priority control pollutants by the USEPA. the present study aimed at the evaluation of the presence of PAHs in sediments of an urban stream by GC-MS. the study area was located in Indaiatuba-São Paulo-Brazil, and supplies to approximately 40,000 people of a region with limited availability of water. Therefore, this water body flowing in the urban region represents a case study of the potential risk in using this water for drinking. the results show that, in general, the sampling site near the intake of the water treatment plant for human consumption had the highest concentration of total PAHs (247.7 mu g kg(-1)). This is the site that presents more contact with urban pollution and surface runoff from the streets. the PAHs composition pattern by ring number presented a higher proportion of hydrocarbons of 4- and 5-rings, and showed a tendency, in the majority of the samples, of predominance of the high-molecular-weight PAHs, except for samples collected on June 2011 that had a high concentration of naphthalene (a 2-ring PAH). the application of a principal component analysis helped to identify the sources of hydrocarbons as pyrogenic (PC1) and petrogenic origin (PC2). Through this statistical tool it is postulated that, in some periods, the stream was exposed to point and non-point sources of contamination, showing that this type of water supply option has a high degree of vulnerability mainly during the first rain after of a long dry period, and its consumption can cause long-term problems.en
dc.description.affiliationUniv Fed Sao Carlos, Dept Quim, Lab Biogeoquim Ambiental, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUniversidade Federal de São Paulo UNIFESP, Dept Ciencias Mar, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo UNIFESP, Dept Ciencias Mar, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent518-531
dc.identifierhttp://dx.doi.org/10.1080/10406638.2014.918553
dc.identifier.citationPolycyclic Aromatic Compounds. Abingdon: Taylor & Francis Ltd, v. 34, n. 5, p. 518-531, 2014.
dc.identifier.doi10.1080/10406638.2014.918553
dc.identifier.issn1040-6638
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/37267
dc.identifier.wosWOS:000341570600004
dc.language.isoeng
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofPolycyclic Aromatic Compounds
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
dc.subjectPAHsen
dc.subjectprincipal components analysisen
dc.subjectsedimenten
dc.subjecturban wateren
dc.titleUsing Urban Streams as Drinking Water: the Potential Risk in Respect to Polycyclic Aromatic Hydrocarbons (PAHs) Content in Sedimentsen
dc.typeinfo:eu-repo/semantics/article
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