Analysis and assessment of heavy metals in urban surface on multivariate analysis

Analysis and assessment of heavy metals in urban surface soils of Teresina, Piauí State, Brazil: a study based on multivariate analysis

dc.creatorMoura, Márcio Cleto Soares de
dc.creatorMoita, Graziella Ciaramella
dc.creatorMoita Neto, José Machado
dc.date2010-12-01
dc.date2022-03-21T20:06:55Z
dc.date2022-03-21T20:06:55Z
dc.date.accessioned2023-08-23T16:01:00Z
dc.date.available2023-08-23T16:01:00Z
dc.identifierhttps://comunicatascientiae.com.br/comunicata/article/view/49
dc.identifier10.14295/cs.v1i2.49
dc.identifierhttp://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77497
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8365381
dc.descriptionThe concentration of Cu, Pb, Zn, Cr, Ni and Mn in the surface soil samples from Teresina city were measured by flame atomic absorption spectrometry (FAAS). A total of 28 composite soil samples were collected at depths 0-10 cm, including residential districts, urban parks, green areas, vegetable-garden, heavy- and low-traffic density areas. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) were used to analyze the data and identify possible sources of these heavy metals. The results of the multivariate analysis showed that Cu, Pb, Zn and Cr were associated mainly to anthropogenic activities, such as, fertilizer and vehicle emission. While Ni and Mn were controlled by original materials and therefore interpreted as natural sources.
dc.descriptionThe concentration of Cu, Pb, Zn, Cr, Ni and Mn in the surface soil samples from Teresina city were measured by flame atomic absorption spectrometry (FAAS). A total of 28 composite soil samples were collected at depths 0-10 cm, including residential districts, urban parks, green areas, vegetable-garden, heavy- and low-traffic density areas. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) were used to analyze the data and identify possible sources of these heavy metals. The results of the multivariate analysis showed that Cu, Pb, Zn and Cr were associated mainly to anthropogenic activities, such as, fertilizer and vehicle emission. While Ni and Mn were controlled by original materials and therefore interpreted as natural sources. Análise e avaliação dos metais pesados em solos superficiais urbanos de Teresina,Estado do Piauí, Brasil: um estudo baseado em análise multivariadaResumoA concentração de Cu, Pb, Zn, Cr, Ni and Mn nas amostras de solo superficial da cidade deTeresina foram medidas por espectroscopia de absorção atômica em chama (FAAS). Um total de28 amostras compostas de solo foram coletadas numa profundidade de 0–10 cm, incluindo distritosresidenciais, parques urbanos, áreas verdes, hortas, áreas de densidade de tráfico baixo e alto.Análise por componentes principais (PCA) e análise por agrupamento hierárquico (HCA) foramusadas para analisar os dados e identificar as possíveis fontes desses metais pesados. Os resultadosda análise multivariada mostraram que Cu, Pb, Zn e Cr foram associados, principalmente, àsatividades antropogênicas, tais como, fertilizantes e emissões veiculares. Enquanto Ni e Mn foramcontrolados por material parente, portanto interpretado como fonte natural.
dc.formatapplication/pdf
dc.languagepor
dc.publisherFederal University of Piauí
dc.relationhttps://comunicatascientiae.com.br/comunicata/article/view/49/36
dc.sourceComunicata Scientiae; Vol. 1 No. 2 (2010); 120
dc.sourceComunicata Scientiae; v. 1 n. 2 (2010); 120
dc.source2177-5133
dc.source2176-9079
dc.subjecturban soil
dc.subjectmetal
dc.subjectmultivariate analysis
dc.subjecturban soil
dc.subjectmetal
dc.subjectmultivariate analysis
dc.titleAnalysis and assessment of heavy metals in urban surface on multivariate analysis
dc.titleAnalysis and assessment of heavy metals in urban surface soils of Teresina, Piauí State, Brazil: a study based on multivariate analysis
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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