scholarly journals Man-made pollution of the environment with coal dust as a result of operation and closure of coal mines

2020 ◽  
Vol 29 (4) ◽  
pp. 693-700
Author(s):  
Maryna S. Gorobei ◽  
Viкtor M. Yermakov ◽  
Оksana V. Lunova
Keyword(s):  
Air Pollution ◽  
Anthropogenic Impacts ◽  
Coal Dust ◽  
Mine Waste ◽  
Effective Means ◽  
Atmospheric Air ◽  
Environmental Threat ◽  
Aerodynamic Interaction ◽  
Mechanism Of Interaction ◽  
Atmosphere Pollution

The technological processes of coal mining, enrichment and use, in particular coal combusting is accompanied by formation and release of significant amounts of dust and gases. Atmospheric air protection is one of the most urgent problems of the nowadays technological society, as scientific and technological progress and expansion of production is associated with an increase in negative anthropogenic impacts on the atmosphere. The paper presents a new solution to the current scientific problem of reducing carbon-containing dust content based on the disclosure of the laws of the aerodynamic interaction of dust and water flows in gravitational and electrostatic fields. The authors show in this study the causes of atmosphere pollution with coal-containing dust; main issues of atmospheric air protection at enterprises located in the controlled territory of Ukraine. The data of the first quarter of the 2020 year are presented in the research. The biggest part of the facilities that pollute the atmospheric air are focused in Donetsk and Lugansk regions. It is estimated that the air environment of the underground mine surface complex is filled with exhaust ventilation air of approximately 200.000 m3 per minute with a dust concentration of approximately (5-7) mg / m3, which is equal to 1.5 tons of dust per a day. It is here that the possibility of transporting pollutants over long distances is most often realized. Coarse dust discharged through the ventilation systems of mines is intensively deposited in the sanitary protection zones of mines. Fine dust is carried by the wind outside them, polluting the environment on the distance of up to 3500 m from the coal mine. Emissions of carbon dust into the atmosphere are almost always a major part of transboundary environmental pollution. Mine waste also poses an environmental threat. Technologies of reduction air pollution at the source of carbon-containing dust formation should be used in all new industries of economy. The results obtained reveal the mechanism of interaction of the sprayed liquid with coal dust and can be used in the development of new effective means of controlling the carbon-containing dust. The principles and practices of sustainable development, coupled with local research, will help to contain or eliminate health and environmental risks resulting from air pollution by carbon-containing dust.

scholarly journals THE ASSESSMENT OF ENVIRONMENTAL AND MEDICAL CONSEQUENCES OF THE ATMOSPHERE POLLUTION WITH PETROLEUM PRODUCTS

2018 ◽  
pp. 123-129
Author(s):  
M. М. Radomska ◽  
I. V. Horobtsov
Keyword(s):  
Air Pollution ◽  
Human Health ◽  
Respiratory System ◽  
Mathematical Analysis ◽  
Petroleum Products ◽  
Volatile Components ◽  
Health Consequences ◽  
Atmospheric Air ◽  
Background Values ◽  
Atmosphere Pollution

The article deals with the dependence between atmospheric air pollution, resulted by the activity of fuel filling stations, and the morbidity of the population at the adjacent areas. The major human health consequences, arising from the inhalation of volatile components of commercial petroleum products, have been analyzed. It has been established that the content of petroleum products in the atmosphere in the zone of fuel filling stations influence exceeds the maximum permissible and corresponding background values. With the help of mathematical analysis it is determined that at these territories the risk for the population to get diseased with respiratory forms of allergy, asthma and chronic respiratory system disorders is higher, as compared with the territories outside the influence of fuel filling stations.

Contamination of the intake air of internal combustion engines of motor vehicles

2021 ◽  
Vol 70 (2) ◽  
pp. 35-64
Author(s):  
Sebastian Dominik Dziubak
Keyword(s):  
Air Pollution ◽  
Internal Combustion Engines ◽  
Strong Dependence ◽  
Road Dust ◽  
Volcanic Eruptions ◽  
Internal Combustion ◽  
Solid Particles ◽  
Dust Concentration ◽  
Combustion Engines ◽  
Atmospheric Air

The paper presents the composition of atmospheric air as a mixture of gases that make up the solid and variable components, and the definitions of air pollutants are referenced. Gaseous and solid pollutants (dust) of the atmospheric air have been defined. Dusts were divided according to various criteria and their properties were given. Exemplary courses of immission of the fraction of solid particles are given, indicating a strong dependence of the immission on the seasons, days of the week and day and night. The sources and characteristics of artificial and natural pollutants in the atmospheric air are presented. It has been shown that the main sources of anthropogenic pollution in addition to industry and the automotive industry. Cars are a source of gaseous and particulate pollutants PM, and they also emit pollution from brake and clutch lining wear, as well as from tire and road wear. The main sources of natural air pollution were discussed, including volcanic eruptions, fires in landfills, forests, steppes and sand storms, as well as mineral dust (road dust) carried from the ground by vehicles. The properties of road dust are discussed: chemical and fractional composition, density, dust concentration in the air. It has been shown that the two basic components of the dust, silica and corundum, whose share in dust reaches 95%, also have the highest hardness, which may have a decisive influence on the wear of engine components. Various valuesof dust concentration in the air were presented depending on the type and condition of the ground and the conditions of use of vehicles. Keywords: mechanical engineering, internal combustion engines, air pollution sources, road dust

scholarly journals Bioindication of atmospheric air quality based on the condition of Pinus sylvestris l. Needles in the conditions of the city of Orsk, Orenburg region

2021 ◽  
Vol 2 (44) ◽  
pp. 3-3
Author(s):  
Alexander Saakian ◽  
◽  
Keyword(s):  
Air Pollution ◽  
Pinus Sylvestris ◽  
Morphological Characteristics ◽  
Southern Urals ◽  
Pine Needles ◽  
The Southern Urals ◽  
Atmospheric Air ◽  
Orenburg Region ◽  
The City ◽  
Industrial Center

The article presents the results of a bioindication study of atmospheric air pollution on the condition of pine needles (Pinus sylvestris L.) on the example of the city of Orsk, Orenburg region. The city of Orsk is a major industrial center of the Southern Urals. The research was carried out on 6 sites located within the city with different anthropogenic loads. The research method is based on the direct dependence of damage to Pinus sylvestris L. needles (necrosis and desiccation) on the level of atmospheric air pollution. Analyzed the morphological characteristics of the needles of Pinus sylvestris L. in the studied areas. The result of the study is an assessment of the state of atmospheric air. Keywords: BIOINDICATION, SCOTS PINE, NEEDLES, AIR POLLUTION, ORSK CITY, ORENBURG REGION

scholarly journals GEOECOLOGICAL MAPPING OF THE PUROVSK AREA IN YAMAL-NENETS AUTONOMOUS REGION

2016 ◽  
pp. 120-125
Author(s):  
N. L. Mamaeva ◽  
S. A. Petrov
Keyword(s):  
Air Pollution ◽  
Carbon Monoxide ◽  
Urban Development ◽  
Nitrogen Dioxide ◽  
Maximum Permissible Concentration ◽  
Near Surface ◽  
Climate Conditions ◽  
Autonomous Region ◽  
Atmospheric Air ◽  
Nenets Autonomous

In the article there were calculated near-surface concentrations of pollutants in the atmospheric air of Purovsk area, Jamal-Nenets Autonomous region. The purpose was to compare these with the maximum permissible concentration. The geo-ecological maps of dispersion of substances emissions into the air were made up using the unified program for calculating the air pollution taking into account the technical characteristics of sources and emissions themselves, natural, especially climate, conditions, as well as protection urban development activities and the lay of land. The conclusions were made about the excess in the atmosphere of maximum permissible concentration of solids on carbon monoxide in Purovsk, and on nitrogen dioxide in Purovsk, as well as in Ust-Purovsk Tazovskaya Guba permafrost areas.

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