Bioaccumulation of some heavy metals by four exotic weeds in the coastal area of the Nile Delta, Egypt

Articles in Press

Document Type : Original Article

Author

Botany department, Faculty of Science

Abstract

The recovery of soil that has been contaminated with heavy metals depends heavily on exotic weeds. In the coastal region of the Nile Delta, the present study assessed the contribution of four exotic invasive weeds to phytoremediation of heavy metals. Four exotic weeds were Xanthium strumarium L. (Xa), Trianthema portulacastrum L. (Tr), Bassia indica (Ba), and Atriplex lindleyi (At) chosen for the this sudy. Results showed that Fe, Zn, Co, Pb, Cd, and Cu plant samples had average heavy metal concentrations of 0.34, 0.07, 0.009, 0.21, 0.01, and 0.042 mg/g DW, respectively. For Cd, Cu, Co, and Zn, Xanthium had the maximum bioaccumulation (BCF). For Fe and Pb, respectively, Atriplex and Bassia displayed the greatest BCF values. BCF of Pb, Co, and Fe were shown to be highly correlated with nitrogen content.

Results obtained will be helpful for using these exotic weeds as a tool for phytoremediation of heavy metal-polluted soil. Therefore, the chosen exotic weeds could be considered as the best candidates for heavy metal phytoremediation in contaminated soils.

Keywords

Journal of Egyptian Academic Society for Environmental Development. D, Environmental Studies

Articles in Press, Accepted Manuscript
Available Online from 10 December 2023

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