Hygiene and Sanitation №3 2008

Kirilyuk L. I., Buganov A. A., Bakhtina Ye. A., Zakharina T. N., Podavinnikova N. Yu.

Bioindicator role of plants in the evaluation of soil pollutions in small northern towns

The study has established that only purple willow and cedar out of 23 species of the plants being examined are the most sensitive representatives of northern phytocenosis to the pollutants (heavy metals). Minimization of the air levels of pollutants and urbanized environmental sanitation require the re-orientation town-planning measures to a new scheme of creating a green plantation system, the expansion of whose area should be made in accordance with selection of plants of various species, by proceeding from the major tasks of the planting of trees and gardens and by taking into account the natural and climatic conditions for formation of ambient air pollution in this area, from the pattern of the placing and operation of structural-and-planning constructions of a town, from the morphofunctional features of representatives of northern phytocenosis to the action of man-caused impurities and environmental toxic substances. At the same time, while forming the environmental infrastructure the most important function of green plantations in the towns should be not only recreational and decorative, but also hygienic and sanitary ones that are to clear the environment from hazardous substances, to absorb gases, and to adsorb dust, which will undoubtedly promote environmental sanitation and therefore health maintenance and promotion in urban dwellers.