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The article presents results of the analysis of spatial and temporal distribution of air pollution in two industrial cities, Ufa and Arkhangelsk. On the basis of satellite images of Earth remote sensing (ERS) for two cities, maps of spatial models of the distribution of the vegetation activity index NDVI were built for the main functional zones of the city: "residential buildings", "industrial areas", "recreational zones" and "highways" in areas with heavy traffic. It is shown that there is a rich “green fund” in Ufa represented by floodplain forests, forest parks, parks and squares. However, in the central part of the city, there are no green spaces with a high density of phytomass. Green spaces in Arkhangelsk have a much smaller specific area and density, the summer is colder here, and the growing season is short. For the first time for Ufa, according to long-term daily observations of the UGMS, maps of the distribution of concentrations of the carcinogenic pollutant benzpyrene were built for each month of active growing season, hazardous zones for the health of citizens were identified. Isolines of benzpyrene concentrations are aligned with the distribution maps of the NDVI index. The analysis of the role of the green frame of the city in the formation of the spatial and temporal distribution of air pollution is given. It is shown that the most polluted, industrial areas of the city, before the beginning of the growing season, are characterized by the highest concentrations of benzpyrene in the city. However, with the development of vegetation in industrial zones, the concentration of benzpyrene decreases, and in July-August it becomes lower than in the residential part of the city, where green spaces are practically absent. The research data are confirmed for the growing season of Arkhangelsk. A statistical analysis of the data was carried out, which showed that for the entire territory of Ufa there is a clear time dependence of the benzpyrene concentration values on the season. During the growing season in all districts of the city, along with an increase in NDVI, there is a sharp decrease in the values of benzpyrene concentrations.
Translated title of the contributionINFLUENCE OF GREEN SPACES ON THE DYNAMICS OF AIR POLLUTION IN CITIES
Original languageRussian
Pages (from-to)58-73
JournalВЕСТНИК ПЕРМСКОГО НАЦИОНАЛЬНОГО ИССЛЕДОВАТЕЛЬСКОГО ПОЛИТЕХНИЧЕСКОГО УНИВЕРСИТЕТА. ПРИКЛАДНАЯ ЭКОЛОГИЯ. УРБАНИСТИКА
Volume41
Issue number1
DOIs
StatePublished - 5 Apr 2021

ID: 86378653