Abstract
The work is devoted to the assessment of the atmospheric air on urbanized territories of Karaganda. This work determines the content of 11 pollutants. Measurements were carried out at 14 route posts with the maximum coverage of the entire city territory in June and January in order to obtain seasonal dynamics of atmospheric air pollution. As a result of measurements in July, the maximum single-time content of carbon monoxide, phenol, formaldehyde, hydrogen sulfide, and methyl mercaptans was recorded. In January, carbon monoxide predominates in the city’s air from pollutants, and increased concentrations of hydrogen sulfide are also observed in most parts of the city. Based on the results obtained, the atmospheric pollution index was calculated for 5 substances. Measurements of the pollutants were carried out at different times of the day. It was found, that contamination in almost all analyzed substances is higher in the daytime and in the evening. The main harmful impurities in the air of Karaganda are ozone, carbon monoxide, hydrogen sulfide, phenol, formaldehyde and methyl mercaptans. Ammonia was detected periodically. Based on the results the suggestions for improvement of the atmospheric air condition in the research territory were developed and adopted.
Highlights
Considering the tendency of increasing man-induced pressure due to industrial growth on the urbanized territories, the development of regional indicators of environmental components condition, which are a kind of indicators reflecting the condition, dynamics and interaction of environmental components and ecosystems in general, has become relevant
Atmospheric pollution index for 5 substances (API5) for January and July is calculated with sulfur dioxide, nitrogen dioxide, carbon oxide, phenol and formaldehyde (Fig. 4)
In January, C12-C19 hydrocarbons and ammonia were not detected in the air
Summary
Considering the tendency of increasing man-induced pressure due to industrial growth on the urbanized territories, the development of regional indicators of environmental components condition, which are a kind of indicators reflecting the condition, dynamics and interaction of environmental components and ecosystems in general, has become relevant. Opportunities for improving the condition of atmospheric air are developed taking into consideration the geoecological, economic, social characteristics of specific territories with increasing man-induced pressure. The trend of increasing air pollution and the threat of increased environmental risk is quite noticeable in the industrial regions of the Republic of Kazakhstan, in particular in the Karaganda region. The main sources of air pollution in the city of Karaganda are large and small industrial enterprises. According to the Department of Statistics, there are 3406 stationary sources of pollutant emissions into the air in Karaganda. Organized sources are 1975 (58%); unorganized are 1431 (42%). 296 sources (15%) are equipped with treatment devices
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