Accessibility navigation


Does speciation impact on Cu uptake by, and toxicity to, the earthworm Eisenia fetida?

Arnold, R. E., Hodson, M. E. and Comber, S. (2006) Does speciation impact on Cu uptake by, and toxicity to, the earthworm Eisenia fetida? European Journal of Soil Biology , 43 (Supp 1). S230-S232.

Full text not archived in this repository.

To link to this article DOI: 10.1016/j.ejsobi.2007.08.021

Abstract/Summary

Eisenia fetida were exposed to different concentrations (0.009, 0.049 and 0. 125 mg L-1) of Cu in an aqueous medium. Cu speciation was manipulated through the addition of different concentrations (0. 15, 0.35 and 50 mg L-1) of EDTA. Cu speciation (as labile and non-labile pools) was determined using Differential Pulse Anodic Stripping Voltammetry. Labile Cu includes free Cu ions together with weak inorganic Cu complexes and a small fraction of easily dissociable organic complexes. Metal uptake and earthworm mortality increased with total Cu concentration in the EDTA free solutions. In the presence of EDTA both metal uptake and mortality decreased. These experiments demonstrate that Cu speciation governs uptake and consequent toxicity of Cu to E. fetida. (c) 2007 Elsevier Masson SAS. All rights reserved.

Item Type:Article
Divisions:Faculty of Science > School of Archaeology, Geography and Environmental Science > Department of Geography and Environmental Science
Faculty of Science > School of Archaeology, Geography and Environmental Science > Earth Systems Science
Interdisciplinary centres and themes > Soil Research Centre
ID Code:3206
Uncontrolled Keywords:Eisenia fetida Cu speciation uptake toxicity EDTA
Additional Information: Conference Information: 8th International Symposium on Earthworm Ecology (ISEE8) Cracow, POLAND, SEP 04-09, 2006

Centaur Editors: Update this record

Page navigation