Determinação de metais traço no material particulado em suspensão em Ouro Preto, Minas Gerais

Química Nova

Lucas Carlúcio Magalhães²  Hermínio Arias Nalini Junior¹  Aniel Da Costa Lima¹  Mauricio Xavier Coutrim¹ 

[1] ,Centro Federal de Educação Tecnológica de Ouro PretoOuro Preto MG ,Brasil

关键词: air quality;    airborne particulate matter;    trace metals;   

DOI  :  10.1590/S0100-40422010000300005

来源: SciELO

【 摘 要 】

The determination of the airborne particulate matter (PTS) mass and trace metals concentrations were performed in three sites in Ouro Preto, MG, Brazil. It was evaluated 288 samples. The legal limit of annual geometric average (60 µg m-3) to PTS concentrations didn't exceed, but the legal limit for 24 h (240 µg m-3) did in three measurements. Seven metals (Al, Cr, Cu, Fe, Mn, Ni, Pb) analysed by ICP-AES were quantified in 18 samples. Aluminum and iron showed the highest concentrations, indicating the contribution of the soil and of one aluminum plant. The high nickel concentration is probably due to vehicular emissions and industrial combustion processes.

【 授权许可】

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