The aim - to conduct a risk assessment of the sanitary and chemical indicators of water for the population and to determine the impact of the quality of centralized drinking water on health. Methods. To assess the risk of drinking water, the database of water test results for 2014-2016 was used. General principles of calculations are taken from the manual and guidelines. The analysis of water is carried out according to sanitary rules and norms. The risk of sanitary and chemical indicators was calculated for the conditions of prolonged and combined oral exposure of several chemicals based on the daily consumption of water by the population with a diverse elemental composition. The calculations used the standard values of water intake for adults (70 kg of body 2 l/day) and children (15 kg of body 1 l/day). To establish the statistical relationship, the Spearman correlation coefficient was used at a significance level of p < 0.05. Results. Analysis of chemicals in drinking water revealed exceedances of maximum permissible concentrations for manganese (by 1.4 times) and iron (from 4.1 to 13.0 times). In calculating the total risk, the critical organs that are most susceptible to the influence of chemicals in the water, such as the circulatory system, skin, genitourinary and immune systems, have been identified. The greatest contribution to the development of the risk of diseases of these systems is made by iron and arsenic. The level of morbidity in the circulatory system among adults is affected by arsenic (R = 0.61), and among children iron (R = 0.79). The hazard ratio was maximum for iron (HQ = 0.833) and arsenic (HQ = 0.426) in drinking water for the child population. A direct positive correlation was found between arsenic concentration and the incidence of adult population in the area for skin and subcutaneous tissue, and for children between the concentration of iron in water and diseases of the circulatory system. Conclusions. The results allow to determine the directions of sanitary-hygienic measures aimed at improving the quality of drinking water and preserving the health of the population.

The evaluation of laboratory studies of food in Primorsky Krai on the content of chemical contaminant according to the program of social-hygienic monitoring with the purpose of the calculation of risk likely their impact on the health of the population of Primorye territory. We used the methodology for exposure and risk assessment of exposure to chemical contaminants of food foods on a population. Estimates of the loads of contaminants (lead, arsenic, cadmium, mercury) contained in the major foods consumed by the population of Primorsky territory for the years 2013-2014. We determined the level of risk of exposure to toxic substances (cadmium, arsenic, lead, mercury) coming from food. Found that arsenic, lead, cadmium are priority pollutants of food products consumed by the population of Primorsky Krai. It is revealed that the high values of hazard ratio is not carcinogenic risk associated with dietary exposure of arsenic noted in fish products and beverages, as the adult and child population. It is shown that at the exposure level of arsenic in food the expected probable number of cases of malignancies for the coming life will be 89.5 cases per 10.000 adults and 27.5 per 10.000 children.

The article presents the results of a hygienic study to assess the chemical contamination of soils in residential areas of Primorsky Krai based on the results of social and hygienic monitoring from 2018 to 2020. The analysis of the actual concentrations of heavy metals in the soil was carried out for 7 chemical elements: lead, zinc, copper, nickel, cadmium, manganese, mercury in 12 administrative territories of the region. Soil safety control points are certified using a system of geoinformation technologies. It has been established that a feature of the administrative territories of the northern part of the region is a sharp predominance of natural sources of chemical pollution over all others. Contamination with toxic elements of soils in the southern part of the region, especially in places of compact residence of the population, is of a pronounced technogenic character. The leading mechanism for the accumulation of microelements in the soils of the cities of Primorsky Krai is their intake from the atmospheric air, heavily polluted by man-made emissions, the leading sources of which are motor vehicles, railroad and sea transport.

Представлены результаты исследования риска воздействия местной плодоовощной продукции, контаминированной нитратами, на здоровье населения Приморского края за 2013-2017 гг. Отмечено влияние различных факторов на накопление нитратов в овощах. Исследовано содержание нитратов в плодоовощных продуктах местного производства, рассчитан уровень нитратной нагрузки на организм человека. На основании полученных данных о среднесуточных дозах поступления нитратов в организм при потреблении данной продукции были определены риски для здоровья населения по сравнению с допустимым суточным потреблением. Установлено, что для населения Приморского края существует потенциальный риск здоровью вследствие употребления контаминированных нитратами растительных продуктов питания местного производства.