scholarly journals Assessment and regulation of the urbanized territory atmospheric air condition of the Karaganda city of the Republic of Kazakhstan

2021 ◽  
Vol 265 ◽  
pp. 02006
Author(s):  
Yelena Tseshkovskaya ◽  
Elena Golubeva ◽  
Nataliya Tsoy ◽  
Aigul Oralova ◽  
Yuriy Obukhov ◽  
...  

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.

2021 ◽  
Vol 16 (3) ◽  
pp. 479-483
Author(s):  
Mansiya Yessenamanova ◽  
Zhanar Yessenamanova ◽  
Anar Tlepbergenova ◽  
Gaukhar Batyrbayeva

This study is aimed at analyzing the content of hydrogen sulfide in the air of the city of Atyrau, located in the northern part of the Caspian Sea of the Republic of Kazakhstan. The analysis was carried out on the basis of monitoring the indicators of the Republican State Enterprise "Kazhydromet" from 8 points located in different directions from the Atyrau oil refinery. Measurements of atmospheric air pollution are made by the GANK-4AR gas analyzer designed for continuous automatic measurement of concentrations of pollutants in the atmospheric air. Hydrogen sulfide was selected as an indicator air pollutant. Atyrau oil refinery is the main object of pollution of the territory of the city of Atyrau, located in the western part of the Republic of Kazakhstan, on the shore of the Caspian Sea. The results obtained show that the content of hydrogen sulfide in the territory of the city of Atyrau in most places shows an excess of the maximum permissible concentration. Especially the excess is observed in the north-western part up to 4-8 maximum permissible concentrations. At two points (in the north-eastern and western parts), the content of hydrogen sulfide did not exceed the maximum permissible concentration.


Author(s):  
Olga Khrystoslavenko ◽  
Ingrida Chemerys

Nowadays there is a tendency towards increasing of anthropogenic pollution in the atmospheric air in the large cities. Therefore, important measures have to be taken for the improvement of the atmospheric environment. In order to optimize the quality of air in the city and reduce emissions from stationary and mobile sources, it is important to predict of the state of the atmospheric air of the city, which is based on the analysis of the characteristics of adverse weather conditions conducive to the accumulation of harmful impurity in a lower (ground) layer of air. The paper identifies and analyzes the conditions in the Cherkassy city (Ukraine) for the period of 2011–2015, provides correlation and regression analysis of air pollution index with adverse weather conditions (the multiple correlation coefficient R = 0.55–0.87). The current research shows that the maximum number of days with adverse weather conditions is in autumn (77.20±4,96) and the lowest number is in spring (58.60±4.40), the greatest number of days matching several adverse weather conditions were found in January and October (4.80±0.20 and 4.60±0.24, respectively). Recommendations to reduce the content of harmful impurities in the atmospheric air of the city are suggested.


2021 ◽  
Vol 6 (3) ◽  
pp. 220-225
Author(s):  
S. V. Stepanov ◽  
◽  
N. I. Rublevska

The air quality monitoring system in industrial cities is one of the systems for responding to risk factors in the public health system. The purpose of the study is, on the basis of a hygienic assessment of carcinogenic and non-carcinogenic risks from exposure to specific pollutants in the cities of Dnipro, Kamenskoye, Kryvyi Rih, to substantiate a program for regional monitoring of atmospheric air quality. Materials and methods. To achieve this goal, the results of air quality studies in the largest industrial cities of the Dnipropetrovsk region – Dnipro, Kryvyi Rih and Kamenskoe for the period 2005-2019 were analyzed in terms of phenol, formaldehyde, benzene, xylene and toluene, and carcinogenic and non-carcinogenic risks to public health were calculated in these cities. Results and discussion. According to the results of the study, individual carcinogenic risks in all three cities in terms of formaldehyde are medium, and in terms of benzene are high. The population carcinogenic risk ranges from 200-269 additional cases of cancer from exposure to formaldehyde and 3727-4426 additional cases of cancer from chronic inhalation exposure to benzene. The calculation of non-carcinogenic risks identified the priority specific air pollutants in the cities under study, as well as the main target organs. So the main systems that are influenced by the action of the studied chemicals are the central nervous system, the general development of the body and the blood system. Based on the risk assessment, it was established that it is necessary to include the Kamenskoye metro station for regional monitoring. It is necessary to include all pollutants from List A to the minimum list of investigated chemicals, and for the city of Dnipro and Kamenskoye it is additionally necessary to carry out studies of phenol, formaldehyde and toluene and in the city of Kryvyi Rih – formaldehyde and toluene. The mechanism of data processing and interaction between the subjects of monitoring has been substantiated for the timely identification of risks and the development of necessary preventive measures for risk management. Conclusion. It was found that carcinogenic and non-carcinogenic risks in industrial cities of the Dnipropetrovsk region are not acceptable. The existing monitoring system does not fully comply with the current requirements. The minimum program of the regional air quality monitoring system in the Dnipropetrovsk region has been scientifically substantiated


Author(s):  
Nataliia Karavan

The generalizing and comparative characteristic of the level of air pollution of the city of Kamianske is presented. The following indicators are analyzed: the dynamics of total emissions of pollutants; structure of emissions by individual types of pollutants; the level and dynamics of the index of air pollution by priority substances. It is emphasized that the main reason for the declining dynamics of gross emissions of pollutants in the city was the decrease in industrial production, primarily at PJSC “Dniprovsk Metallurgical Plant”. The main economic indicators of PJSC “Dniprovsk Metallurgical Plant” are analyzed and conclusions are drawn about the unsatisfactory financial condition of the enterprise. The dynamics of the main air pollutants of the city is studied. The structure of emissions into the air of the city is analyzed and it is concluded that the share of carbon monoxide is the largest in the structure of emissions of the city and significantly exceeds the national and regional level. In addition, there is an excess of average daily maximum permissible concentrations not only for carbon monoxide, but for other air pollutants, namely formaldehyde, nitrogen dioxide, phenol, ammonia. The dynamics of the index of air pollution by priority substances is analyzed. The following conclusions about the level and dynamics of this indicator in the cities of Dnipropetrovsk region are formulated: for the main cities-polluters of atmospheric air of the region the indicator is quite high, the level of which is characterized as “above average”; during the last three years for Kamianske and Kryvyi Rih the indicator had a steady upward trend; as of the end of 2020 year, the highest value of the indicator is 14.9, which characterizes the unsatisfactory air quality of Kamianske. The dynamics of change of positions of the city of Kamianske according to the index of air pollution in the national rating of cities-polluters is characterized. During the period under study, the city of Kamianske consistently occupied “high” positions: maximum – 1st place (2014 year), minimum – 4th place (2018, 2019 years). The article emphasizes that measures to reduce the level of air pollution in the city should be in line with the regional Program of Environmental Safety and Climate Change Prevention for 2016–2025.


Author(s):  
Azhar Bauyrzhanova ◽  

The article examines the state of air pollution in Temirtau, Karaganda region, and the dynamics of the air pollution index (API). The API is calculated based on the 5 main pollutants in the city, namely suspended particles, nitrogen dioxide, carbon monoxide, phenol and ammonia. The article describes the synoptic conditions of atmospheric air pollution in Temirtau, that is, the influence of baric structures, such as cyclones and anticyclones, troughs and ridges, on the maximum permissible concentration of harmful substances and their time in the city air. The meteorological quantity such as the wind contributing to the transport of pollutants is also considered, and a frequency diagram of the wind direction is presented in order to consider the transboundary transport of harmful substances from other regions. The materials of the article used maps of a certain period of time, such as baric topographic maps and terrestrial synoptic maps, and their analysis was carried out. Based on the results of the analysis of maps of a certain period, the article describes the conditions for the occurrence of synoptic processes favorable for the accumulation of large concentrations of harmful substances in the city. The topic under consideration will be interesting to specialists in the field of natural science, politicians and public figures who pay attention to the ecology of our country, in particular to the ecological system of cities with a large industrial complex, such as Temirtau, and to urgent global environmental problems affecting to the state of atmospheric air quality.


2020 ◽  
Vol 1 (9) ◽  
pp. 64-74
Author(s):  
L. B. SHABANOVA ◽  
◽  
L. V. GUSAROVA ◽  
V. V. GARIPOVA ◽  
◽  
...  

For several years before the announcement of the global pandemic caused by the COVID-2019 infection, the restaurant services market in the city of Kazan, the capital of the Republic of Tatarstan, was represented by almost all formats of catering establishments: from fast-food to premium restaurants. Kazan was in first place in Russia and in the Volga Federal District in terms of the number of seats in cafes and restaurants per thousand inhabitants. However, in the context of a pandemic and quarantine, enterprises have suspended work. The conditions for getting out of self-isolation force us to reconsider the attitude of consumers to the problems of the restaurant business and how to solve them before and after the pandemic.


2019 ◽  
Vol 138 ◽  
pp. 01031
Author(s):  
Julia Ivanova ◽  
Ekaterina Sokolova ◽  
Valery Azarov ◽  
Elizaveta Martynova

Volgograd belongs to a number of cities in which a linear planning structure was formed, stretching along the Volga River for almost 100 km, however, the width of Volgograd in some sections ranges from 3 to 10 km. The total area outlined by the borders is 400 km2, Volgograd has a “loose” structure, as a result, the territory occupied by residential quarters is almost 3 times smaller. In the city there are gaps between the districts, which are occupied by green areas and wastelands. In Volgograd, large green space arrays prevail on the ravines and gullies slopes, which are widespread in the city, as well as in watershed areas, while having a soil-protective and water-regulating value. Moreover, in general, in Volgograd, the area of green areas is much less than the normative.


Author(s):  
A.V. Semakina ◽  
G.R. Platunova ◽  
A.R. Mansurov

In this work, the maps of the atmospheric air condition in the territory of the Republic of Bashkortostan were built taking into account the influence of the relief on the dispersion of pollutants. As a calculation model, a modified technique of V.A. Petrukhin and V.A. Vishensky was used. To increase the accuracy of the results, a correction factor for the influence of the relief on the process of dispersion of pollutants was calculated. According to the maps obtained, high concentrations of pollutants and high values of the integrated air pollution index are observed near two industrial centers: Ufa-Blagoveshchensk and Salavat-Sterlitamak.


Author(s):  
A. B. Sadykova ◽  
N. V. Silacheva ◽  
N. P. Stepanenko

In connection with the reform of regulatory framework for construction sector of the Republic of Kazakhstan, the development of seismic zoning maps poses an urgent problem. The article presents a set of seismic microzoning maps of Almaty, developed on a new methodological basis for Kazakhstan, and provides explanatory materials on the development, understanding and use. Calculation of background seismic hazard was carried out in accordance with the basic provisions of Eurocode 8. Seismic microzoning included the implementation of two main tasks - the assessment of background seismicity and taking into account influence of soil conditions. Based on the analysis results, a set of maps have been arranged. When taking into account the influence of engineering and geological conditions, Russian and Kazakh works were used. The main maps ready for use in regulatory documents are provided. Analysis of capacities of the sediments of same age in different blocks made it possible to understand the dynamics of tectonic regime of the city territory. In the process of neotectonic activation, almost all previously existing tectonic disturbances were improved. In the contemporary relief of the urban area, most faults are not expressed.


2021 ◽  
Author(s):  
Mario García ◽  
Héctor Ulloa ◽  
Omar García ◽  
Hermes Ramírez ◽  
Aida Fajardo ◽  
...  

Actively caring for the environment is an issue that prevails in the international debate, and our country takes part on this argument. One aspect of environmental deterioration is, with no doubt, atmospheric pollution; a constant in modern societies, which, in the attempt to find growth and development, impact the natural and urban environment they inhabit. A distinctive feature of commercial and economic exchange are the strategic cities, so-called capitals, in addition to the territories where coastal tourism predominates as an engine of regional human development. In this balance, which is far from being sustainable and fair, an exponential consumer market dominates and generates the progressive increase in the use of fossil fuels. The former being emitted into the atmosphere, in such a way that they alter chemical composition and cause harmful air quality. In addition, the territory is impacted, intoxicating the soil and water, which are the final deposit. The objective of this work is to determine the temporal behavior of atmospheric pollutants in the city of Tepic, Nayarit, Mexico and to identify the dominant pollution indicators considering the international and national context. Through the statistical analysis of the databases of particles smaller than 2.5 micrometers, particles smaller than 10 micrometers and carbon monoxide, the behaviors of these pollutants in the study area were obtained. Among the most significant results, particles smaller than 2.5 micrometers showed maximum levels outside the norm almost all year round, with values ​​reaching 170 micrograms per cubic meter. On the other hand, the particles smaller than 10 micrometers presented satisfactory levels in their average behavior; however, the maximum concentrations remained outside the official Mexican standard. Regarding the analysis of CO, a behavior within the maximum permissible limits of protection for the population was reported; Nevertheless, by favoring the formation of tropospheric ozone, its contribution is significant, especially when the atmosphere is highly photo-reactive. This research can be used as a timely tool for mitigation of climate change, where the results contribute to the review and rethinking of public management of the environment towards sustainable development.


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