Pedosphere 27(3): 389--406, 2017
ISSN 1002-0160/CN 32-1315/P
©2017 Soil Science Society of China
Published by Elsevier B.V. and Science Press
Assessment of methods for determining bioavailability of trace elements in soils: A review
1Waste Science & Technology, Lule\aa\ University of Technology, 97187 Luleå (Sweden)
2 Department of Agrifood Production and Environmental Sciences, University of Florence, 50144 Florence (Italy)
3 Ruhr-Universität Bochum, 44801 Bochum (Germany)
4 Joint Research Unit (UMR) Biodiversity, Genes & Communities (BIOGECO), French National Institute for Agricultural Research (INRA), 33405 Bordeaux (France)
5 Agence Nationale de Sécurité Sanitaire (Anses), 94700 Paris (France)
6 i-CLEANTECH Vlaanderen, 3530 Houthalen-Helchteren (Belgium)
7 Hasselt University, Centre for Environmental Sciences, 3590 Diepenbeek (Belgium)
8 University of Natural Resources and Life Sciences Vienna, 3430 Tulln (Austria)
      Trace element-contaminated soils (TECSs) are one of the consequences of the past industrial development worldwide. Excessive exposure to trace elements (TEs) represents a permanent threat to ecosystems and humans worldwide owing to the capacity of metal(loid)s to cross the cell membranes of living organisms and of human epithelia, and their interference with cell metabolism. Quantification of TE bioavailability in soils is complicated due to the polyphasic and reactive nature of soil constituents. To unravel critical factors controlling soil TE bioavailability and to quantify the ecological toxicity of TECSs, TEs are pivotal for evaluating excessive exposure or deficiencies and controlling the ecological risks.While current knowledge on TE bioavailability and related cumulative consequences is growing, the lack of an integrated use of this concept still hinders its utilization for a more holistic view of ecosystem vulnerability and risks for human health. Bioavailability is not generally included in models for decision making in the appraisal of TECS remediation options.In this review we describe the methods for determining the TE bioavailability and technological developments, gaps in current knowledge, and research needed to better understand how TE bioavailability can be controlled by sustainable TECS management altering key chemical properties, which would allow policy decisions for environmental protection and risk management.
Key Words:  bioaccessibility, bioavailability, biosensors, chemical extractions, contaminated soils, metalloids, metals
Citation: Kumpiene J, Giagnoni L, Marschner B, Denys S, Mench M, Adriaensen K, Vangronsveld J, Puschenreiter M, Renella G. 2017. Assessment of methods for determining bioavailability of trace elements in soils: A review. Pedosphere. 27(3): 389--406.
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