Assessment of selected tree species as phytoremediation agents in polluted soils.

The study investigates the ability of selected tree species to absorb heavy metals (Pb, Ni, Zn) from polluted soils. Seedlings of Adansonia digitata (P), Jatropha curcas (P), and Hildegardia barteri (P) were transplanted into polythene pots with soils from a dumpsite (T), highway (T), industrial area (T), and farmland (T), forming a 3x4 factorial experiment replicated five times in a Completely Randomized Block Design. Pre-sowing analysis showed T and T had the highest Pb and Zn concentrations, T had the highest Ni, and T had the lowest heavy metal concentrations.