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

Quimica nova

Magalhães, Lucas Carlúcio¹  Lima, Aniel da Costa²  Nalini Junior, Hermínio Arias²  Coutrim, Mauricio Xavier² 

[1] Centro Federal de Educação Tecnológica de Ouro Preto, Ouro Preto, Brasil;Universidade Federal de Ouro Preto, Ouro Preto, Brasil

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 determinationof the airborne particulate matter (PTS) mass and trace metals concentrationswere performed in three sites in Ouro Preto, MG, Brazil. It was evaluated 288samples. 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 µgm-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 ironshowed the highest concentrations, indicating the contribution of the soil andof one aluminum plant. The high nickel concentration is probably due to vehicularemissions and industrial combustion processes.

【 授权许可】

CC BY