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A comparative study on capability of different tree species in accumulating heavy metals from soil and ambient air

Alahabadi, Ahmad, Ehrampoush, Mohammad Hassan, Miri, Mohammad, Ebrahimi Aval, Hamideh, Yousefzadeh, Samira, Ghaffari, Hamid Reza, Ahmadi, Ehsan, Talebi, Parvaneh, Abaszadeh Fathabadi, Zeynab, Babai, Fatemeh, Nikoonahad, Ali, Sharafi, Kiomars, Hosseini-Bandegharaei, Ahmad
Chemosphere 2017 v.172 pp. 459-467
Morus alba, Pinus brutia var. eldarica, air, autumn, bioaccumulation, cadmium, copper, heavy metals, lead, phytoremediation, plant tissues, pollution, soil, spring, summer, trees, urban areas, zinc
Heavy metals (HMs) in the urban environment can be bio-accumulated by plant tissues. The aim of this study was to compare fourteen different tree species in terms of their capability to accumulate four airborne and soilborne HMs including; zinc (Zn), copper (Cu), lead (Pb), and cadmium (Cd). Samplings were performed during spring, summer, and fall seasons. To compare bioaccumulation ability, bio-concentration factor (BCF), comprehensive bio-concentration index (CBCI), and metal accumulation index (MAI) were applied. Species with the highest accumulation for single metal which shown using BCF did not have the highest CBCI and MAI. Based on CBCI and MAI, Pinus eldarica (7.74), Wistaria sinensis (8.82), Morus alba (8.7), and Nigral morus (27.15) had the highest bioaccumulation capacity of HMs, respectively. Therefore, these species can be used for phytoextraction of HMs pollution and green and buffer zone in the urban.