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The aim of this study was to analyze the effect of air pollution on the structure of reasons of death from major non communicable diseases in cities of the Russian Federation Material and methods. The study analyzed the mortality of people of working age (with stratification by gender and causes of death) in pairs of cities, with matching the cities of each pair by the climatic and socio-economic conditions, but the level of air pollution in one city significantly exceeded the level of pollution in another. The following pairs of cities were formed (“dirty” - “relatively clean”): Bratsk-Kirov; Nizhny Tagil-Kirov; Novokuznetsk-Tomsk; Chita-Tomsk; Magnitogorsk - Orenburg, Cherepovets-Vologda. The analysis included data on the mortality from diseases of the circulatory system, respiratory system, and oncological diseases, since according to WHO, air pollution primarily affects mortality from coronary heart disease, stroke, chronic obstructive pulmonary disease, and lung cancer. Results. The mortality rate of people of working age from diseases of the circulatory system, primarily from cardiovascular diseases, is significantly higher in cities with a high level of pollution compared with cities with a lower level of pollution and similar climatic and socio-economic conditions. The mortality rate of men from cerebrovascular diseases in the group of dirty cities is higher than in compared cities in 4 out of 6 studied pairs. Moreover, differences in the mortality rate in women were less pronounced, they were revealed in 2 out of 6 compared pairs. The differences in mortality from oncological diseases were detected in 4 out of 6 comparison pairs for women and 2 out of 6 compared pairs for men. Conclusion. An analysis of the mortality used pairwise comparison of cities showed air pollution to most affect on the mortality from diseases of the circulatory system.

There are considered special social and economic aspects of the epidemiology of Helicobacter pylori. These aspects acquired the particular importance for the last time due to the fact that the provision of the people with pure water has been becoming the focus of the attention of geopolitical and socio-economic interests in a number of countries. The availability ofpure drinking water serves a marker of the socio-economic state of the territory and the population living there. In Russia where different climatic conditions are deposited by considerable regional differences in the conditions of communal services caused both by various level of the socio-economic development of the territory, the supplementation with pure drinking water serves as the social determinant of the ecological conditions of the population’s life. This particularly has impact on the unfeasible technical state of the water distribution systems, microorganism ecology of which can substantially affect public health. The performed by authors a specialized screening ofpresented at the official web site of the joint-stock company «Mosvodokanal» current data concerning the quality of drinking water consumed by 2500 Moscovites, tested for the Helicobacter pylori infection revealed no deviations from the sanitary standards in the water received by the consumers. Along with that, the comparison of the map documents of the distribution of the Helicobacter pylori infection in Moscow with the distribution of citizens’ complaints of the decline of the quality of tap water has revealed a territorial fastening of the high values of the population infection rate of n^ylori and the urban sites with the greatest number of complaints. In the microbial ecology of water-distribution systems there are tightly aligned problems of their epidemiological safety, technical state and economic damage caused by corrosion as a result of microbiotic activity. In contrast to acute bacterial and viral infections which are deemed of the greatest importance when assessing the sanitary condition of water sources and water-distribution systems, the consequences of infection with H. pylori may not be manifestedfor a long time but some years later they may be manifested as serious chronic diseases (from gastritis to adenocarcinoma of the stomach and a wide range of extraintestinal pathologies), which causes great social and economic losses. Thus, the socio-economic aspect of the epidemiology of helicobacteriosis includes at least two components: the technic - the maintenance of the feasible technic and sanitary state of the water distribution systems and the medico-social - expenditures for screening and treatment of infected patients. In total they are an inseparable part of the prevention of socially-important diseases in the public health system.

The experience of the use data of prophylactic examination in working groups for epidemiological studies is presented. A prevalence of chronic and background diseases in different age and gender groups is demonstrated as well as a prevalence of Helicobacter pylori infection among the population and the shift in the work impact on the risk of health impairment in female workers. Data obtained can be used for the clinical and epidemiological analysis of the relationships between diverse pathologies and environmental and occupational factors with the view of optimization of financial expenditures. Data on prophylactic examinations are particularly valuable for the estimation the recent population health and environment to make decisions for prevention of widespread diseases.