Journal
ENVIRONMENTAL POLLUTION
Volume 179, Issue -, Pages 232-241Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2013.03.066
Keywords
Earthworms; Inorganic trace element; Ecotoxicity; Cast production; Soil properties
Categories
Funding
- INSU-EC2CO program
- ADEME
- French Agency of the Environment and Energy
- STCM Chemical Metal Treatment Company
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Due to diffuse atmospheric fallouts of process particles enriched by metals and metalloids, polluted soils concern large areas at the global scale. Useful tools to assess ecotoxicity induced by these polluted soils are therefore needed. Earthworms are currently used as biotest, however the influence of specie and earthworm behaviour, soil characteristics are poorly highlighted. Our aim was therefore to assess the toxicity of various polluted soils with process particles enriches by metals and metalloids (Pb, Cd, Cu, Zn, As and Sb) collected from a lead recycling facility on two earthworm species belonging to different ecological types and thus likely to have contrasted behavioural responses (Eiseina hortensis and Lumbrims terrestris). The combination of behavioural factors measurements (cast production and biomass) and physicochemical parameters such as metal absorption, bioaccumulation by earthworms and their localization in invertebrate tissues provided a valuable indication of pollutant bioavailability and ecotoxicity. Soil characteristics influenced ecotoxicity and metal uptake by earthworms, as well as their soil bioturbation. (C) 2013 Elsevier Ltd. All rights reserved.
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