Food products contamination with xenobiotics of various genesis exerts negative influence on population health. According to multiple research performed on various territories in Russia, nitrates are basic contaminants occurring in food products and they make a considerable contribution into higher morbidity with specific nosologic forms, notably pathologies which are primarily caused by factors related to nutrition.The paper focuses on analysis of laboratory research data on nitrates concentrations in food products; the data were collected in Altai region and they are taken from research reports issued by certified test laboratories. The authors also performed their own laboratory research at the Institute for Occupational Hygiene and Industrial Ecology of the RF Public Healthcare Ministry; it allowed to conclude that increased nitrates contents in food products were a vital issue which requires further examination and research performed with high precision laboratory research techniques.We assessed hazard quotients (HQ) for nitrates occurring in vegetables and melons, individual carcinogenic risks (ICR), and population carcinogenic risks (PCR). Our hygienic assessment of nitrates concentrations in food products allowed us to reveal boundaries of risk properties variability.It is necessary to work out recommendations how to reduce exposure of Altai region population to nitrates and to give grounds for priority approaches to administrative decision-making aimed at lowering population risks caused by consumption of nitrates-contaminated food products.

The study assessed the physical development of rural and urban children aged of 7-10 years in the Altai Territory for somatometric and physiometric indices (height, body weight, chest circumference, vital capacity of lungs, dynamometry, arterial pressure). Somatometric indices of the physical development in rural children of primary school level have been established to be statistically significantly higher than similar indices of urban children in boys and girls. The evaluation of physiometric indices in groups of rural and urban children revealed another trend. Indices of the right-hand muscle strength, the vital capacity of lungs, arterial pressure (systolic and diastolic) by 10 years in urban children begins to exceed these indices of rural peers. The revealed differences in the physical development of rural and urban children show a different combination and a share of the influence of environmental factors on the schoolchildren’s organism.

Introduction. Occupational health of medical workers is an intensively studied field of hygienic science. This is due to the high incidence of medical workers, which exceeds the average for sectors of the economy. The presented study uses a risk-based approach for a comprehensive assessment of the influence of physical factors on medical workers working with a large number of electronic medical equipment: physiotherapists, clinical laboratory diagnostics doctors, and ultrasound diagnostics doctors. Materials and methods. Studies of adverse factors of working environment factors were carried out in 4 medical institutions of the Altai Territory and the Novosibirsk Region. Based on the obtained results the values of health risk were calculated and a class of working conditions was established for all the studied jobs. Results. At the first stage, a hygienic assessment of working conditions at the workplaces of medical workers was conducted. The largest number of jobs did not meet sanitary standards for the following indicators: air temperature of the working area (55.6% of all jobs), artificial light (84.5%), light pulsation coefficient (46.7%), concentration of aero ions of negative polarity (57,8%), the coefficient of unipolarity (80%). In addition, a class of working conditions was established at each of the studied jobs (obtained in the range from 2 to 3.4). The estimated health risk of workers from exposure to gamma radiation varied from negligible to moderate. Limitations. Exposures to many of the physical factors in the workplace are approximate based on a typical work day for an employee by department and profession. Conclusion. An assessment of the harmful effects of physical factors at various workplaces in medical institutions heterogeneous for their purpose revealed similar violations in terms of microclimate parameters, illumination, air ion composition and electromagnetic fields from computer monitors, which is consistent with data obtained by previous researchers in this area. It seems necessary to implement a system of preventive measures for employees in medical organizations based on the concept of professional risk analysis with a review of the results each year, taking into account the worked experience.

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