Investigation of the ability of Ferula assa-foetida plant to stabilize the lead metal plant

Mining activities are major contributors to soil contamination, and in general, surface soils around mines contain high levels of these metals. The aim of this study was to evaluate the ability of lead absorbed is by Ferula assa-foetida from soil contaminated with lead . After identification of plant samples collected, the samples were prepared for analysis. The amount of Pb, electrical conductivity, pH was measured and the ability of plant samples for lead uptake and accumulation by calculating the biological concentration factor (BCF) and translocation factor (TF) were studied. It is also observed that the amount of exchangeable lead elements in soil ranges from ۳۲ to ۶۳ mg / kg dry weight. The average pH of soil samples was determined from ۷.۵ to ۸.۸. Also, the results showed that the highest average amount of lead in grasshopper was ۴۰۷ mg / kg in roots, ۴۳ mg / kg in air and ۴۲ mg / kg in soil. Bioavailability factor (BCF) plants are more than one and less than one transfer factor (TF) is suitable for plant fixation. Studies have shown that bioavailability factor in Ferula assa-foetida ۱.۴ and transfer factor is ۰.۲. Therefore, Ferula assa-foetida plant is the most suitable species for phytoremediation of lead contaminated soils.

کلیدواژه ها:

Bioavailability factor ، Phytoremediation ، Transfer factor