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Selecting chemical and ecotoxicological test batteries for risk assessment of trace element-contaminated soils (phyto)managed by gentle remediation options (GRO).

Authors :
Kumpiene, Jurate
Bert, Valérie
Dimitriou, Ioannis
Eriksson, Jan
Friesl-Hanl, Wolfgang
Galazka, Rafal
Herzig, Rolf
Janssen, Jolien
Kidd, Petra
Mench, Michel
Müller, Ingo
Neu, Silke
Oustriere, Nadège
Puschenreiter, Markus
Renella, Giancarlo
Roumier, Pierre-Hervé
Siebielec, Grzegorz
Vangronsveld, Jaco
Manier, Nicolas
Source :
Science of the Total Environment. Oct2014, Vol. 496, p510-522. 13p.
Publication Year :
2014

Abstract

During the past decades a number of field trials with gentle remediation options (GRO) have been established on trace element (TE) contaminated sites throughout Europe. Each research group selects different methods to assess the remediation success making it difficult to compare efficacy between various sites and treatments. This study aimed at selecting a minimum risk assessment battery combining chemical and ecotoxicological assays for assessing and comparing the effectiveness of GRO implemented in seven European case studies. Two test batteries were pre-selected; a chemical one for quantifying TE exposure in untreated soils and GRO-managed soils and a biological one for characterizing soil functionality and ecotoxicity. Soil samples from field studies representing one of the main GROs (phytoextraction in Belgium, Sweden, Germany and Switzerland, aided phytoextraction in France, and aided phytostabilization or in situ stabilization/phytoexclusion in Poland, France and Austria) were collected and assessed using the selected test batteries. The best correlations were obtained between NH 4 NO 3 -extractable, followed by NaNO 3 -extractable TE and the ecotoxicological responses. Biometrical parameters and biomarkers of dwarf beans were the most responsive indicators for the soil treatments and changes in soil TE exposures. Plant growth was inhibited at the higher extractable TE concentrations, while plant stress enzyme activities increased with the higher TE extractability. Based on these results, a minimum risk assessment battery to compare/biomonitor the sites phytomanaged by GROs might consist of the NH 4 NO 3 extraction and the bean Plantox test including the stress enzyme activities. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00489697
Volume :
496
Database :
Academic Search Index
Journal :
Science of the Total Environment
Publication Type :
Academic Journal
Accession number :
97848242
Full Text :
https://doi.org/10.1016/j.scitotenv.2014.06.130