Pot experiments were carried out to assess the influence of two plant species on chemistry of polluted and unpolluted urban soils. Change in pH and acid neutralization capacity of the soils, as well as variations in elemental composition of soil leachates and in total concentrations of elements in the soil were studied by INAA and ICP-AES. Concentrations of 28 elements in plants were determined by INAA. Cultivation of plants led to significant change in soil parameters. In particular, acid neutralization capacity of polluted soil increased, resulting in increase in element uptake.