Elementos traço em material particulado atmosférico de uma região agroindustrial do sudeste do Brasil

Química Nova

Patrícia Lopes De Oliveira²  Bernardino Ribeiro Figueiredo²  Arnaldo Alves Cardoso¹  Rômulo Simões Angélica¹ 

[1] ,Universidade Estadual de Campinas Instituto de Geociências Campinas SP ,Brasil

关键词: trace elements;    atmospheric particulate matter;    biomass burning;   

DOI  :  10.1590/S0100-40422013000400009

来源: SciELO

【 摘 要 】

Trace element concentrations were measured in atmospheric particulate matter collected in 2009 and 2010, in a Brazilian region influenced by pre-harvest burning of sugar cane crops. For coarse particles, high concentrations of Al, Fe, K and Ca suggested that re-suspended soil dust was the main source of aerosol trace elements, subsequently confirmed by XRD analysis. High levels of K, Zn, As, Cd and Pb were found in fine particles, confirming the contribution of biomass burning and vehicle emissions, whereas Na, Al, K, Fe and Zn were the representative elements in ultrafine particles, influenced by a diversity of sources.

【 授权许可】

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