Assessment of metal extraction, distribution and contamination in surface soils by a 3-step sequential extraction procedure.

Authors
Barona, A Aranguiz, I Elias, A
Citation
A. Barona et al., Assessment of metal extraction, distribution and contamination in surface soils by a 3-step sequential extraction procedure., CHEMOSPHERE, 39(11), 1999, pp. 1911-1922
Citations number
26
Categorie Soggetti
Environment/Ecology
Journal title
CHEMOSPHERE
ISSN journal
00456535 → ACNP
Volume
39
Issue
11
Year of publication
1999
Pages
1911 - 1922
Database
ISI
SICI code
0045-6535(199911)39:11<1911:AOMEDA>2.0.ZU;2-8
Abstract
A 3-step sequential extraction procedure was used in order to assess the en vironmental risk of Cu, Ni and Zn in contaminated soils. The non-residual f raction was the most abundant pool for Cu in all soils, which means that th is metal is highly available in these soils. Ni was mostly concentrated in the residual fraction. Zn was found in all the fractions but its distributi on pattern was different in each soil. Individual and global contamination factors were calculated from the non-residual and residual contents and the ir values allowed us to classify the soils according to their environmental risk. (C) 1999 Elsevier Science Ltd. All rights reserved.