Phytoremediation potential of native plants: Biomonitoring approach in contaminated soils

Phytoremediation has been used to remediate contaminated site. This study aims to investigate the potential of the selected native plants to accumulate and tolerate chemical pollutants. Two sites were selected in Southern Tunisia lands (Gabès), i) Gannouch located near the chemical industrial comple...

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Bibliographic Details
Published in:Notulae botanicae Horti agrobotanici Cluj-Napoca 2023-01, Vol.51 (2), p.13063
Main Authors: AYDI, Samir, Sameh SASSI AYDI, BEN SALAH, Ghada, DEKHIL, Amani, Rami RAHMANI, BOUAJILA, Abdelhakim, MOHAMED, Niveen A., ABDELLY, Chedly
Format: Article
Language:English
Subjects:
Accumulators
Alkaline soils
Bassia
Bioaccumulation
Biological magnification
Biomonitoring
Biomonitors
Cadmium
Chemical pollutants
Chemical pollution
Copper
environmental polluants
Fluorine
Heavy metals
Indigenous plants
Industrial areas
Lead
Native species
Organic matter
phytoextraction
Phytoremediation
phytostabilisation
Soil contamination
Soil layers
Soil pollution
Soil remediation
Translocation
Zinc
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Summary:Phytoremediation has been used to remediate contaminated site. This study aims to investigate the potential of the selected native plants to accumulate and tolerate chemical pollutants. Two sites were selected in Southern Tunisia lands (Gabès), i) Gannouch located near the chemical industrial complex and ii) Zerkineis around 35 kilometres far from the industrial activities. Soil and plants were sampled and analysed for cadmium (Cd), lead (Pb), copper (Cu), zinc (Zn) and fluorine (F) concentrations. The native plants were Bassia indica and Chenopodium album, with no obvious morphological toxic symptoms. Results indicated that the upper soil layers were alkaline and salt affected with low organic matter content. The highest levels of fluoride and heavy metal were found in Ghannouch. The contents of Cd, Cu, Pb, Zn and F in the roots, stem and leaves of the native plants exceed the normal ranges and the phytotoxic level. Bioconcentration factor (BCF), translocation factor (TF), and biological accumulation factor (BAF) were determined for each element. Based on these factors the selected plants were classified as excluders, indicators, and accumulators for each element. The native plants, studied herein, seems to have significant potential for phytoremediation, thus they may be used as biomonitors in contaminated soils. Bassia indica identified as Cd, Cu and Pb accumulator, could be an excellent candidate for phytoextraction and phyto stabilization because of its F excluder performance.
ISSN:0255-965X
1842-4309
DOI:10.15835/nbha51213063