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Ecotoxicity of Ni in soil

Published online by Cambridge University Press:  05 July 2018

H. E. Allen ,
Lin Yanqing  and
D. M. Di Toro
H. E. Allen
Affiliation:
Center for the Study of Metalsin the Environment, Department of Civil and Environmental Engineering, University of Delaware, Newark, DE 19716 USA
Lin Yanqing
Affiliation:
Center for the Study of Metalsin the Environment, Department of Civil and Environmental Engineering, University of Delaware, Newark, DE 19716 USA
D. M. Di Toro
Affiliation:
Center for the Study of Metalsin the Environment, Department of Civil and Environmental Engineering, University of Delaware, Newark, DE 19716 USA
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Abstract

Assessing metal contamination of soils has been a difficult task because the metal concentration in soil is not directly correlated to its potential effects. We review an approach, termed the Terrestrial Biotic Ligand Model (TBLM), in which partitioning of metal from soil to soil solution is modelled and the metal in solution interacts with an organism, the biotic ligand, to cause toxicity. The toxicity is modulated by other cations in the soil solution, principally H+, Ca2+, and Mg2+. New results for the model using Ni as the toxic species and barley root elongation as the biological response are presented.

Keywords

soil, toxicityTerrestrial Biotic Ligand ModelNibarley root elongation
Type
Research Article
Information
Mineralogical Magazine , Volume 72 , Issue 1 , February 2008 , pp. 367 - 371
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2008

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