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Modelling the effects of copper on soil organisms and processes using the free ion approach: towards a multi-species toxicity model

Lofts, Stephen; Criel, Peggy; Janssen, Colin R.; Lock, Koen; McGrath, Steve P.; Oorts, Koen; Rooney, Corinne P.; Smolders, Erik; Spurgeon, David J.; Svendsen, Claus; van Eeckhout, Hilda; Zhao, Fang-Zie. 2013 Modelling the effects of copper on soil organisms and processes using the free ion approach: towards a multi-species toxicity model. Environmental Pollution, 178. 244-253. 10.1016/j.envpol.2013.03.015

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Abstract/Summary

The free ion approach has been previously used to calculate critical limit concentrations for soil metals based on point estimates of toxicity. Here, the approach was applied to dose–response data for copper effects on seven biological endpoints in each of 19 European soils. The approach was applied using the concept of an effective dose, comprising a function of the concentrations of free copper and ‘protective’ major cations, including H+. A significant influence of H+ on the toxicity of Cu2+ was found, while the effects of other cations were inconsistent. The model could be generalised by forcing the effect of H+ and the slope of the dose–response relationship to be equal for all endpoints. This suggests the possibility of a general bioavailability model for copper effects on organisms. Furthermore, the possibility of such a model could be explored for other cationic metals such as nickel, zinc, cadmium and lead.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.envpol.2013.03.015
Programmes: CEH Topics & Objectives 2009 - 2012 > Biogeochemistry > BGC Topic 3 - Managing Threats to Environment and Health > BGC - 3.1 - Develop temporally and spatially explicit risk assessment tools ...
CEH Topics & Objectives 2009 - 2012 > Biogeochemistry > BGC Topic 3 - Managing Threats to Environment and Health > BGC - 3.2 - Provide the evidence base for setting Environment Quality Standards ...
CEH Sections: Acreman
Shore
ISSN: 0269-7491
Additional Keywords: soil, toxicity, copper, bioavailability, free ion approach
NORA Subject Terms: Ecology and Environment
Date made live: 29 Apr 2013 14:44 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/501246

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