Air pollution and grouping of cities according to their environmental status

In the article, the ecological situation of the cities located in the Kura-Araz plain is analyzed. Our study area is the most populated and most important agricultural region in the country. The possibility of environmental pollution is also high in the area located on the east- west roads. In particular, the pollutants released into the atmosphere were analyzed and the results were determined. During the research, the atmospheric pollution in the cities during the historical period was studied using the mathematical-statistical method. Ecological zoning of cities was carried out using GIS technologies. The main source of air pollution in cities is cars, their number, and the use of outdated cars. Another reason is the important industrial cities located in the study area. Substances released into the air from industrial enterprises pollute the atmosphere of the cities. It was determined that the environmental situation is more intense in cities where large industrial enterprises are located. There are large, medium and small cities in the study area. The main polluting cities are the cities of Mingachevir and Shirvan, which belong to the group of large and medium cities because the most important industrial enterprises of the country are located here. Also, these cities are important power centers of the country. These cities differ from others in terms of population. At the same time, we have included the city of Yevlakh in the group of cities with an important role in atmospheric pollution. As a result of the analysis, ecological zoning of cities was carried out. At this time, 3 gradations were used. During this zoning, the pollution of the atmosphere was taken into account. The influence of carbon monoxide CO2, carbon oxides CHx, nitrogen oxides NOx and sulfur oxides SOx on atmospheric air in cities was analyzed. The main cause of pollution is the location at the intersection of highways. The location on the east-west roads has made the ecological situation in the cities even more tense. Especially in Mingachevir and Shirvan, the environmental situation is more intense.