The seasonal dynamics of the heavy metal (Fe, Zn, Cu, Ni, Cr, Pb) content in different species of trees (linden, birch, poplar) has been shown. The dependence has been established by correlation analysis between some specific factors (soil рН, the background soil metal content, the background atmospheric air metal content) and the heavy metal content in urban tree plantations. A comparative analysis of different tree species has been carried out by the coefficients of biological absorption of heavy metals.
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