Plants can absorb nearly all the chemicals present in the environment in large or small quantities. Chemical inputs as a result of industrial emissions accumulate primarily in the leaves of woody plants. This study compares the metal content of cleaned and dirty leaves of balsam poplar (Populus balsamifera L.) under Sterlitamak Industrial Centre conditions. Under pollution conditions, high levels of metals were detected in cleaned and dirty poplar leaves. Chromium, cobalt, copper and nickel from artificial sources are extensively accumulated in poplar leaves in contaminated areas. Moreover, a prevailing accumulation of chromium, cobalt and nickel was observed in the cleaned leaves, excluding cadmium, 14 times more prevalent in dirty poplar leaves than in cleaned leaves. The zinc content of the cleaned and dirty leaves is almost the same. Increasing the concentration of elements in dirty poplar leaves under pollution conditions (per dry biomass (mg/kg)) can be arranged in the following order: Cd < Zn < Pb < Co < Ni < Cr < Cu. The accumulation of metals in balsam poplar leaves during the growing season was evaluated. Bioaccumulation values of metals have been determined for the biomass of leaves.