Phytoextraction potential of three endogenous Amaranthaceae species grown on the Akouédo landfill (Abidjan, Côte d’Ivoire)
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 7, Issue 5
Abstract
The selection of adequate plant species is a prerequisite for cleaning-up trace metal elements contaminated-soils by phytoextraction which is a cost-effective and environmentally-friendly technology. The potential of Amaranthus spinosus, Amaranthus viridis and Alternanthera sessilis to remove metal trace elements from the soil of the Akouédo landfill was investigated. The concentrations of metal trace elements in soil were also considered. Moreover, the accumulation of Zn, Ni, Cu, Pb and Cd was assessed based on bioconcentration factor, translocation factor and phytoextraction potential. The results showed high concentration values in the soil of the abandoned and the operation site of the landfill compare to the control site. The highest concentrations of trace metal elements in the plant shoot were observed with A. spinosus for Ni, A. viridis for Pb and A. sessilis for Zn. Furthermore, the highest values of bioconcentration factor (BCF) and the translocation factor (TF) for Ni, were respectively 56 and 2.6, in A. spinosus, suggesting that it can be considered as a Ni hyperaccumulator. Among all metal trace elements, Pb and Zn were respectively highly bioaccumulated in A. viridis and A. sessilis.
Authors and Affiliations
Messou Aman, Ouattara Pétémanagnan Jean-Marie, Kone Tiangoua, Alangba Sroboa Charles, Coulibaly Lacina
Keywords
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