Leaching Characteristics of Heavy Metals by TCLP Method in the Urban Soils of Quanzhou City

Abstract:

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The available concentrations of heavy metals in the urban soils from different functional areas of Quanzhou city were determined using the toxicity characteristic leaching procedure (TCLP), developed by the United States Environmental Protection Agency (USEPA). The available concentrations of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Cd, Sn, Sb and Pb were 0.02–0.30, 0.02–0.20, 0.02–0.60, 14-500, 1.30-351, 0.10-2.40, 0.14-8.60, 0.30-50, 1.90-180, 0.06-0.60, 0.02-0.86, 0.02-8.0, 0.02-8.0 and 0.38-102 mg/kg, respectively. The extractable proportions of heavy metals were relatively low compared to their total concentrations, with the order of the extracted ratios of Cu (18.0%) > Mn (15.4%) > Ni (12.2%) > Sb (11.3%) > Zn (11.0%) > Cd (9.2%) > Co (8.9%) > Sn (3.6%) > Pb (3.1%) > As (1.9%) > Cr (0.8%) > Fe (0.2%) > V (0.1%) > Ti (0.0%).

Info:

Periodical:

Advanced Materials Research (Volumes 356-360)

Edited by:

Hexing Li, Qunjie Xu and Daquan Zhang

Pages:

647-650

DOI:

10.4028/www.scientific.net/AMR.356-360.647

Citation:

R. L. Yu et al., "Leaching Characteristics of Heavy Metals by TCLP Method in the Urban Soils of Quanzhou City", Advanced Materials Research, Vols. 356-360, pp. 647-650, 2012

Online since:

October 2011

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Price:

$35.00

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