On the Effect of Green Spaces on the Natural Risks Associated with Air Quality Decrease of the Urban Environment

Despite the high interest to the study of the effect of green spaces on the processes of substance migration in the system "lithosphere – biostrome – atmosphere", the negative aspects of these interactions are not considered. A scheme of the circulation of heavy metals in this system is proposed; dependences for calculating the density of heavy metal flows between components are obtained. Methods are proposed and experimental studies of the dynamics of Fe, Cu, Pb, Zn concentration in each component of the system are carried out. A correlation between the processes of plant growing and the concentration of heavy metals in air was established. The flows of Fe, Cu, Pb, Zn in the system "lithosphere – biostrome – atmosphere" are calculated, graphic representations of their balance are proposed. The diagram analysis which made it possible to establish the fact of the influence of green spaces on their migration at a selected point was carried out.