Open AccessAnalysis of atmospheric emissions in Murmansk and their relationship with pollution of urban lakes
Author(s) -
Marina Alexeevna Postevaya,
Zakhar Slukovskii
Publication year - 2021
Publication title -
vestnik mgtu
Language(s) - English
Resource type - Journals
eISSN - 1997-4736
pISSN - 1560-9278
DOI - 10.21443/1560-9278-2021-24-2-190-201
Subject(s) - environmental science , pollutant , pollution , environmental chemistry , environmental engineering , thermal power station , sulfur dioxide , air pollution , fuel oil , waste management , chemistry , inorganic chemistry , ecology , organic chemistry , engineering , biology
The main sources of anthropogenic emissions into the atmosphere of Murmansk are emissions from thermal power plants and boiler houses operating on fuel oil. As a result of the analysis of the dynamics of pollutant emissions from stationary anthropogenic sources for the period 1997-2019 it has been established that the level of air pollution is assessed as low; there is a tendency towards a decrease in gross emissions from stationary sources. The main pollutants from thermal power plants are sulfur dioxide, nitrogen oxides, carbon monoxide, formaldehyde, and benzo(a)pyrene. Together with gaseous and liquid substances, fuel oil ash and products of incomplete underburning of fuel, which include heavy metals V, Ni, Cr, Pb, Fe, Sn, enter the atmospheric air. Technogenic compounds of heavy metals and other pollutants from the enterprises of the power unit, falling out with dust or precipitation on the surface and catchment areas of lakes, affect the formation of the chemical composition of surface soils, waters and bottom sediments of water bodies. This is reflected in an increase in the concentration of heavy metals (in particular, V and Ni) in the water and bottom sediments of the lakes of Murmansk in comparison with the background values.