Вісники та науково-технічні збірники, журнали
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Item Statistical assessment of the dynamics of changes in the PM10 and PM2.5 level in the air of urbanized areas(Видавництво Львівської політехніки, 2023-02-28) Sabadash, Vira; Lopushansky, Oleksiy; Lysko, Vitaliy; Lviv Polytechnic National UniversityThis article addresses the issue of atmospheric pollution caused by solid particles in urban environments. The presence of PM10 and PM2,5 particles in the air of major cities and industrial areas worldwide has been examined. An evaluation of atmospheric pollution levels with PM10 and PM2,5 particles in Kostopil, considering current air quality standards in Ukraine and the European Union, has been conducted. The authors employed the gravimetric method to measure the levels of suspended dust particles (PM10 and PM2,5) in Kostopil from autumn 2022 to winter 2023. The study revealed an excessive amount of fine dust particles in the city's air, exceeding the maximum permissible values outlined in regulatory laws by 2.1-2.7 times. Furthermore, the monitoring of changes in suspended dust particle levels showed peak values of PM10 = 1.15 mg/m³ in January and PM2,5 = 0.96 mg/m³ in December. The results of the statistical analysis of particle level distribution in Kostopil's urban areas indicated the statistical significance of certain distribution parameters, specifically SW-W and D for PM10 and PM2,5 particle classes.Item Methods of comprehensive statistical analysis of agglomeration atmospheric air pollution(Видавництво Львівської політехніки, 2021-03-01) Loyeva, Inesa; Bazar, Salem Rabeea; Burhaz, Oleksii; Vladymyrova, Olena; Odessa State Environmental University; Hadhramout UniversityThe article presents an algorithm of a complicated statistical analysis of atmospheric air pollution over certain urban territories, based on methods of multivariate statistical analysis and a statistical decisions theory. Statistical analysis of the concentrations obtained from the observation posts network provides the data on the atmospheric air pollution background characteristics. This analysis enables us to find the spatial correlations between the concentrations of the ingredient under various synoptic conditions. The proposed set of statistical methods is advisable to be applied in the development of a state monitoring program for atmospheric air protection over specific zones or territories (urban agglomeration) as part of the implementation of a new management procedure for state monitoring of atmospheric air protection in Ukraine.Item Russian armed aggression against Ukraine – the impact on the environment of the temporarily occupied territories(Видавництво Львівської політехніки, 2021-06-01) Malovanyy, Myroslav; Bohach, Nataliia; Lviv Polytechnic National UniversityThe armed aggression of the Russian Federation against Ukraine, which has been going on since 2014, caused severe consequences for our state. Besides killing and injuring dozens of thousands of Ukrainian citizens, expelling hundreds of thousands of people from their homes, seizing and destroying infrastructure, Russia has inflicted large-scale environmental damage in the occupied territories. Thus, as a result of the occupation of Crimea, the situation with fresh water on the peninsula is rapidly deteriorating, which can significantly change the ecosystem in the future. In addition, the warfare launched by the aggressor against Ukraine in the Donetsk and Luhansk regions caused serious environmental and man-made consequences, among which the main are pollution of groundwater and surface water, flooding of mines, subsidence, air pollution, destruction of agricultural lands, destruction and damage of nature reserves, forest fires, etc. Ignoring the environmental threats caused by Russian armed aggression can lead to catastrophic aftermath in the future. To prevent this scenario, an effective response is needed not only from Ukraine but also from the entire international community.Item Оцінка рівня викидів СО2 автомобілями на магістральних вулицях міста Львова(Видавництво Львівської політехніки, 2019-02-26) Бойків, М. В.; Аліксійчук, Л. С.; Bojkiv, M.; Aliksiichuk, L.; Національний університет “Львівська політехніка”Досліджено рівень викидів CO2 автомобілями на магістральних вулицях міста Львова залежно від розташування досліджуваної ділянки вулично-дорожньої мережі та інтенсивності руху на ній. Встановлено, що під час руху в транспортному потоці на підходах до перехресть, де спостерігаються черги автомобілів, рівень загазованості зростає і перевищує граничнодопустиму норму.Item Studying an air ventilation and pollution in an atmosphere of industrial city: elements of new modeling approach and green-city technology(Lviv Politechnic Publishing House, 2017-09-08) Khetselius, Olga; Glushkov, Alexander; Safranov, Tamerlan; Buyadzhi, Vasily; Bunyakova, Yuliya; Romanova, Anna; Odessa State Environmental UniversityWe develop the elements of a new generalized approach to natural air ventilation of the industrial city. It is based on the Arakawa-Shubert and Glushkov models which allow to give a quantitative reliable modelling an unsteady turbulence in the urban area and atmospheric ventilation dynamics. To calculate the air circulation for the cloud layer arrays, penetrating into the territory of the urban area, we apply the methods of a plane complex field theory. The method allows to calculate the convection parameters and shifting cumulus cloud ensemble from surrounung regions. An advanced mathematical method for modelling an unsteady turbulence in the city’s area is developed and applied. As illustrative example, we apply our approach to computing the ventilation potential and current function for typical (quite simplified) sinopticl situation for the territory of the Odessa city.Item Mathematical modeling of the environmental radioactive pollution during oil and gas wells drilling(Lviv Politechnic Publishing House, 2017-09-08) Burla, Oksana; Ablieieva, Iryna; Plyatsuk, Leonid; Malovanyy, Myroslav; Sumy State UniversityThe aim of paper was development of an adequate mathematical model for predicting the level of environmental pollution by radionuclides emitted as a result of oil wells drilling. This problem was solved using Gaussian Plume Model which allowed to determine the concentration of radionuclides at a given point in space. Impurity flux density in Bq/(m2 s) was been simulated.