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

Moura, Márcio Cleto Soares de; Moita, Graziella Ciaramella; Moita Neto, José Machado

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dc.creator	Moura, Márcio Cleto Soares de
dc.creator	Moita, Graziella Ciaramella
dc.creator	Moita Neto, José Machado
dc.date	2010-12-01
dc.date.accessioned	2022-03-21T20:06:55Z
dc.date.available	2022-03-21T20:06:55Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/49
dc.identifier	10.14295/cs.v1i2.49
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77497
dc.description	The 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.	en-US
dc.description	The 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.	pt-BR
dc.format	application/pdf
dc.language	por
dc.publisher	Federal University of Piauí	en-US
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/49/36
dc.source	Comunicata Scientiae; Vol. 1 No. 2 (2010); 120	en-US
dc.source	Comunicata Scientiae; v. 1 n. 2 (2010); 120	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	urban soil	en-US
dc.subject	metal	en-US
dc.subject	multivariate analysis	en-US
dc.subject	urban soil	pt-BR
dc.subject	metal	pt-BR
dc.subject	multivariate analysis	pt-BR
dc.title	Analysis and assessment of heavy metals in urban surface on multivariate analysis	en-US
dc.title	Analysis and assessment of heavy metals in urban surface soils of Teresina, Piauí State, Brazil: a study based on multivariate analysis	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion