Zinc and Lead Content and Availability in Brazilian Soil Contaminated with Residue of a Secondary Smelting Lead Recycling Plant

Authors : Gustavo CASTRO, André SANTANA, Guilherme FERREIRA, Barbara HEIRAS, Felipe SANTOS, Laercio CAETANO, Pedro PADILHA, Marco MARTINES, Luciana OLIVEIRA, Renato NEVES, Gustavo CASTRO

Pages : 601-607

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Publication Date : 2012-07-19

Article Type : Other Papers

Abstract :The sequential extraction procedure of Zinc and lead performed in a Brazilian soil showed that it presents high pollution potential once over 90% of total lead is present in fractions where the metals can be easily mobilized. The fraction contents are as follow: F1 = 174 and 15 mg kg -1 ; F2 = 3155 and 9.7 mg kg -1 ; F3 = 99 and 1.6 mg kg -1 ; Residual fraction = 38 and 5.5 mg kg -1 for lead and zinc, respectively. The comparison with non contaminated soil only Pb 2+ concentration is above its intervention reference concentration, 900 mg kg -1 . Keywords: BCR sequential extraction; soil contamination, metal ions  
Keywords : BCR sequential extraction, soil contamination, metal ions