On the basis of the assessment of noncancer risk, main approaches were developed and approved to identifying the effects of the environmental factors on the health of the population, with special reference to nonspecificity of the action of the factors in question, polymorphism of the organism's responses, estimation of the threshold of the pollutants actions, specificities of the combined effects of environmental factors. The data obtained serve as a basis for identifying the extent of risk for exposure of the population to different factors, and it is on this foundation that priorities are to be established in designing health promotion measures, and the risk is to be correlated with the amounts of the necessary measures designed to provide an adequate social protection of the population.
The study was undertaken to determine the main laws of setting-up an epidemiological chain "functional state--predisease--disease" and to define causal and effective relation-ships in the system "environment--community health".
Physical factors of urban environment (noise, electromagnetic fields) affect the process of the pathology development in children exposed to their effect at all the levels starting from the onset of early deviations in body nonspecific protection indices and up to the formation of chronic pathology. It has been established that all physical environmental factors negatively affect practically all the analyzed health indicators because of their nonspecific influence. At the same time it is demonstrated that the same factors have the most distinct effect on this or that system. Thus it becomes possible to exercise goal-oriented planning of environmental protection measures.