Determination of trace metals in supended particulate matter (spm) in Ouro Preto City, Minas Gerais

Química Nova

Universidade Federal de Ouro Preto, Ouro Preto, Brasil¹  Lima, Aniel da Costa¹  Magalhães, Lucas Carlúcio¹  Nalini Junior, Hermínio Arias¹  Coutrim, Mauricio Xavier¹  Centro Federal de Educação Tecnológica de Ouro Preto, Ouro Preto, Brasil¹ 

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

DOI  :  10.1590/S0100-40422010000300005

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown