TY - JOUR
T1 - Distribution and mobility of metals in contaminated sites. Chemometric investigation of pollutant profiles
AU - Abollino, Ornella
AU - Aceto, Maurizio
AU - Malandrino, Mery
AU - Mentasti, Edoardo
AU - Sarzanini, Corrado
AU - Barberis, Renzo
N1 - Funding Information:
We thank the Ministero dell'Università e della Ricerca Scientifica e Tecnologica (MURST Rome, COFIN-2000) and the Italian National Research Council (C.N.R., Rome) for financial support, and the local Environmental Protection Authorities for their cooperation and assistance in completing characterization and sampling of the sites.
PY - 2002
Y1 - 2002
N2 - The distribution and mobility of heavy metals in the soils of two contaminated sites in Piedmont (Italy) was investigated, evaluating the horizontal and vertical profiles of 15 metals, namely Al, Cd, Cu, Cr, Fe, La, Mn, Ni, Pb, Sc, Ti, V, Y, Zn and Zr. The concentrations in the most polluted areas of the sites were higher than the acceptable limits reported in Italian and Dutch legislations for soil reclamation. Chemometric elaboration of the results by pattern recognition techniques allowed us to identify groups of samples with similar characteristics and to find correlations among the variables. The pollutant mobility was studied by extraction with water, dilute acetic acid and EDTA and by applying Tessier's procedure. The fraction of mobile species, which potentially is the most harmful for the environment, was found to be higher than the one normally present in unpolluted soils, where heavy metals are, to a higher extent, strongly bound to the matrix.
AB - The distribution and mobility of heavy metals in the soils of two contaminated sites in Piedmont (Italy) was investigated, evaluating the horizontal and vertical profiles of 15 metals, namely Al, Cd, Cu, Cr, Fe, La, Mn, Ni, Pb, Sc, Ti, V, Y, Zn and Zr. The concentrations in the most polluted areas of the sites were higher than the acceptable limits reported in Italian and Dutch legislations for soil reclamation. Chemometric elaboration of the results by pattern recognition techniques allowed us to identify groups of samples with similar characteristics and to find correlations among the variables. The pollutant mobility was studied by extraction with water, dilute acetic acid and EDTA and by applying Tessier's procedure. The fraction of mobile species, which potentially is the most harmful for the environment, was found to be higher than the one normally present in unpolluted soils, where heavy metals are, to a higher extent, strongly bound to the matrix.
KW - Contaminants
KW - Heavy metals
KW - Mobility
KW - Soils
KW - Speciation
UR - http://www.scopus.com/inward/record.url?scp=0036009837&partnerID=8YFLogxK
U2 - 10.1016/S0269-7491(01)00333-5
DO - 10.1016/S0269-7491(01)00333-5
M3 - Article
SN - 0269-7491
VL - 119
SP - 177
EP - 193
JO - Environmental Pollution
JF - Environmental Pollution
IS - 2
ER -