Gustavo CASTRO,
André SANTANA,
Guilherme FERREIRA,
Barbara HEIRAS,
Felipe SANTOS,
Laercio CAETANO,
Pedro PADILHA,
Marco MARTINES,
Luciana OLIVEIRA,
Renato NEVES,
Gustavo CASTRO
4116
Zinc and Lead Content and Availability in Brazilian Soil Contaminated with Residue of a Secondary Smelting Lead Recycling Plant
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 Pb2+ concentration is above its intervention reference concentration, 900 mg kg-1.Keywords: BCR sequential extraction; soil contamination, metal ions