Determinação de metais traço no material particulado em suspensão em Ouro Preto, Minas Gerais Determination of trace metals in supended particulate matter (spm) in Ouro Preto City, Minas Gerais

• Main Authors: Lucas Carlúcio Magalhães, Hermínio Arias Nalini Junior, Aniel da Costa Lima, Mauricio Xavier Coutrim
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2010-01-01
• Series: Química Nova
• Subjects: air quality; airborne particulate matter; trace metals
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000300005

<abstract language="eng">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.