Bioaccumulation and translocation of heavy metals by nine native plant species grown at a sewage sludge dump site

The present study proved that, the concentrations of all heavy metals (except Cd, Co and Pb) in most studied species were positively correlated with those in soil. Such correlations indicate that these species reflect the cumulative effects of environmental pollution from soil, and thereby suggesting their potential use in the biomonitoring of most heavy metals examined. In conclusion, all tissues of nine plant species could act as bioindicators, biomonitors and remediate of most examined heavy metals.

Moreover, Bassia indica, Solanum nigrum and Pluchea dioscoridis are considered hyperaccumulators for Fe, Amaranthus viridis and Bassia indica are considered hyperaccumulators for Pb, and Portulaca oleracea is hyperaccumulator for Mn.