Аннотация
The paper presents the results of complex ecological studies of the urban environment on the reaction of Tilia cordata Mill.grown in the recreational zone of Astana.The authors studied the features of surface horizons of soils on their toxicity using tracer test-object Raphanus sativus and heavy metal pollution.The quality of the environment is assessed by bioindicator indicators of fluctuating asymmetry of the linden leaf.