Accessibility navigation


Impact of the earthworm Lumbricus terrestris (L.) on As, Cu, Pb and Zn mobility and speciation in contaminated soils

Downloads

Downloads per month over past year

Sizmur, T., Palumbo-Roe, B., Watts, M. J. and Hodson, M. E. (2011) Impact of the earthworm Lumbricus terrestris (L.) on As, Cu, Pb and Zn mobility and speciation in contaminated soils. Environmental Pollution, 159 (3). pp. 742-748. ISSN 0269-7491

[img] Text - Accepted Version
· Please see our End User Agreement before downloading.

356Kb

To link to this article DOI: 10.1016/j.envpol.2010.11.033

Abstract/Summary

To assess the risks that contaminated soils pose to the environment properly a greater understanding of how soil biota influence the mobility of metal(loid)s in soils is required. Lumbricus terrestris L. were incubated in three soils contaminated with As, Cu, Pb and Zn. The concentration and speciation of metal(loid)s in pore waters and the mobility and partitioning in casts were compared with earthworm-free soil. Generally the concentrations of water extractable metal(loid)s in earthworm casts were greater than in earthworm-free soil. The impact of the earthworms on concentration and speciation in pore waters was soil and metal specific and could be explained either by earthworm induced changes in soil pH or soluble organic carbon. The mobilisation of metal(loid)s in the environment by earthworm activity may allow for leaching or uptake into biota.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science > School of Archaeology, Geography and Environmental Science > Department of Geography and Environmental Science
Interdisciplinary centres and themes > Soil Research Centre
Faculty of Science > School of Archaeology, Geography and Environmental Science > Earth Systems Science
ID Code:20337
Publisher:Elsevier

Download Statistics for this item.

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation