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Transport and accumulation of heavy metals in undisturbed soil columns

Ermakov, I.; Koptsik, S. V.; Koptsik, G. N.; Lofts, S.. 2007 Transport and accumulation of heavy metals in undisturbed soil columns. Global NEST Journal, 9 (3). 187-194.

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Abstract/Summary

The podzolic soils of the Kola Peninsula, Russia, have in localised areas been highly contaminated with copper and nickel from smelting activities. Migration and retention of these metals were investigated in undisturbed soil columns irrigated with simulated background and polluted precipitation in order to study the temporal processes of retention and release within the soil. The mineral layers were strongly acidified by the contaminated precipitation. Forest floor layers demonstrated a high capacity to retain input Ni and Cu under all conditions. Mineral layers accumulated some Cu, but released Ni. In general, Ni leached through the soil faster than Cu. Since metals are strongly retained in the forest floor layer, even after reduction or cessation of inputs there may be a significant long–term risk of their leaching to deeper soil and groundwater. This risk cannot be ameliorated without remediative intervention.

Item Type: Publication - Article
Programmes: CEH Programmes pre-2009 publications > Biogeochemistry > SE01B Sustainable Monitoring, Risk Assessment and Management of Chemicals > SE01.4 Monitoring and predicting the distribution of chemicals in terrestrial and freshwater ecosystems
CEH Programmes pre-2009 publications > Biogeochemistry > SE01B Sustainable Monitoring, Risk Assessment and Management of Chemicals
CEH Sections: Shore
NORA Subject Terms: Earth Sciences
Chemistry
Date made live: 18 Jan 2008 11:46
URI: http://nora.nerc.ac.uk/id/eprint/2112

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