Green manure plants for remediation of soils polluted by metals and metalloids: Ecotoxicity and human bioavailability assessment
Abstract
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.
Origin : Files produced by the author(s)
Loading...