The role of climatic factors in forming the ecology of hot cities in Russia

Introduction. The development of the territories of modern cities contributes to the increase in modern urban development and the development of transport and engineering infrastructure. In this regard, the consumption of petroleum products is increasing, which seriously affects the ecological balance of urban areas. In large cities located in hot regions, the most extreme environmental conditions are formed. The growth of modern high-rise buildings, the intensive use of urban transport makes the air pollution of the city more significant. At high temperatures characteristic of southern cities, the pollution of urban space is the most noticeable.

Materials and methods. The paper analyzes the ecology of hot cities in Russia. The most polluted areas of cities were identified, where the concentration of pollutants exceeds the permissible limits due to lack of air exchange. The role of air flows of thermal origin in the aeration of yard spaces is determined.

Results. On the example of a nine-story residential building in the city of Volgograd, an analysis was made of the formation of air flows of thermal origin. description of the applied information materials and scientific methods. A graph of field measurements of the speed of convective flows near the facades of the building at different times of the daylight hours, the regulation of which can improve the ecology of urban areas, is given.

Conclusions. Modern cities with a hot climate, which are characterized by high-rise dense buildings, are in environmentally unfavorable conditions. In the yard spaces, areas with stagnation of air and the concentration of pollutants are formed, due to the violation of the aeration of the territory. The studies carried out are of practical importance and can be used to assess the air exchange of inter-house territories in urban planning and the development of urban spaces. The formation of air flows of thermal origin, considered in the study, can contribute to the air exchange of yard spaces and significantly improve the ecological situation.

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