Cadmium bioaccumulation factors for terrestrial species: application of the mechanistic bioaccumulation model OMEGA to explain field data

The Science of the Total Environment
Karin VeltmanA Jan Hendriks

Abstract

In environmental risk assessment of metals it is often assumed that the biota-to-soil accumulation factor (BSAF) is generic and constant. However, previous studies have shown that cadmium bioaccumulation factors of earthworms and small mammals are inversely related to total soil concentrations. Here, we provide an overview of cadmium accumulation in terrestrial species belonging to different trophic levels, including plants, snails and moles. Internal metal concentrations of these species are less than linearly related to total soil levels, which is in accordance with previously observed trends. The mechanistic bioaccumulation model OMEGA (Optimal Modeling for Ecotoxicological Applications) is used to provide a quantitative explanation of these trends in cadmium accumulation. Our results indicate that the model accurately predicts cadmium accumulation in earthworms, voles and shrews when accounting for geochemical availability of metals and saturable uptake kinetics.

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Aug 30, 2006·Environmental Pollution·Karin VeltmanA Jan Hendriks

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Citations

Sep 29, 2011·Biological Trace Element Research·Zhongsheng ZhangXianguo Lu
Apr 25, 2012·Bulletin of Environmental Contamination and Toxicology·Zhongsheng ZhangXianguo Lu
Aug 31, 2013·Environmental Science and Pollution Research International·Raul E MartinezReto Gieré
Oct 5, 2010·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Palma SimonielloSilvana Filosa
May 13, 2009·The International Journal of Biochemistry & Cell Biology·Jose R Peralta-VideaJorge Gardea-Torresdey
Jan 29, 2017·Ecotoxicology·Wei-Yu ChenVivian Hsiu-Chuan Liao

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