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Objective. To determine the trends in the structure and assess medical, social and clinical aspects of the consumption of tobacco and nicotine-containing products among adolescents aged 1417. Material and methods. During the study, 352 adolescents aged 14 to 18 years studying in urban (n = 202) and rural (n = 150) schools of Yaroslavl region were surveyed in 20202021. Statistical processing of the data was carried out using computer programs "Statistica" v.10.0. Results. The survey of teenagers revealed a fairly high prevalence not only of active tobacco smoking (tried 37 %, actively smoked 30 % of adolescents), but also the use of "new" nicotine-containing products (vape, hookah, electronic cigarettes, snus, snuff) (tried 38 %, actively used 7 % of teenagers). The structure of active tobacco use and NRTI use was found to differ by the place of residence. Active tobacco use accounted for 46.7 % of rural adolescents and 19.8 % of urban residents (p 0,01). Conclusions. In modern adolescents, along with tobacco smoking, a negative trend has been detected to increase the use of nicotine-containing products, especially hookah. This substantiates the need to improve educational anti-nicotine programs, to introduce a system of regular regional monitoring of the prevalence of traditional and new nicotine-containing products use among children and adolescents in order to make quick and effective decisions.

The issues of utilization of heat recovery of high-temperature waste gases of thermal-oxidative solid and liquid waste disposal systems using cogeneration gas turbine techniques with reverse order of processes are considered. The article presents technological scheme, calculation method, design characteristics and analysis of energy and environmental efficiency of thermal-oxidative solid and liquid waste disposal systems based on rotating, layer and chamber furnaces using gas turbine techniques with reverse order of processes. The results of the analysis indicate the possibility of additional generation of electric and thermal energy, which will significantly reduce fuel consumption in the replaced thermal power plants and the corresponding negative environmental impacts. The coefficient of heat utilization in the thermal oxidation neutralization system can reach 0.72 – 0.79, the coefficient of efficiency of the system (CEWEP) 1.17 – 1.57. The obtained calculated data can be used in selecting the best available techniques for energy waste disposal using thermal-oxidative neutralization and gas turbine techniques with reverse order of processes.