Journal
CHEMOSPHERE
Volume 93, Issue 7, Pages 1430-1435Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2013.07.040
Keywords
Green manure plants; Metal(loid)s; Polluted soil; Ecotoxicity; Bioaccessibility; Phytoremediation
Categories
Funding
- ANRT (National Agency for Research and Technology)
- STCM (Metal Chemical Treatments Society)
- National Research Agency [ANR-12-0011-VBDU]
- Ademe, Dimension projet
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Borage, white mustard and phacelia, green manure plants currently used in agriculture to improve soil properties were cultivated for 10 wk on various polluted soils with metal(loid) concentrations representative of urban brownfields or polluted kitchen gardens. Metal(loid) bioavailability and ecotoxicity were measured in relation to soil characteristics before and after treatment. All the plants efficiently grow on the various polluted soils. But borage and mustard only are able to modify the soil characteristics and metal(loid) impact: soil respiration increased while ecotoxicity, bioaccessible lead and total metal(loid) quantities in soils can be decreased respectively by phytostabilization and phytoextraction mechanisms. These two plants could therefore be used for urban polluted soil refunctionalization. However, plant efficiency to improve soil quality strongly depends on soil characteristics. (C) 2013 Published by Elsevier Ltd.
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