Identification of the level of environmental pollution in individual forest areas by fluctuating asymmetry of the leaf blade of the hanging birch

Based on the results of field surveys, it is shown that the deformation parameters of birch leaves can serve as an indicator of the degree of environmental pollution. It is concluded that when placing recreational facilities, the specifics of the location should be taken into account and the necessary measurements should be carried out according to the degree of environmental pollution. It is advisable to use the bioindication technique when choosing facilities for recreation of the population.