Analysis of atmospheric emissions in Murmansk and their relationship with pollution of urban lakes

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 e...

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Bibliographic Details
Main Authors: Postevaya, M. A., Slukovskii, Z. I.
Format: Other Non-Article Part of Journal/Newspaper
Language:Russian
Published: 2021
Subjects:
Online Access:http://hdl.handle.net/1834/41697
Description
Summary: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. Основными источниками антропогенных выбросов в атмосферу г. Мурманска являются выбросы ТЭЦ и котельных, работающих на мазутном топливе. В результате проведенного анализа динамики выбросов загрязняющих веществ от стационарных антропогенных источников за период 1997–2019 гг. установлено, что уровень загрязнения воздуха оценивается как низкий; наблюдается тенденция к снижению валовых объемов выбросов от стационарных источников. К основным поллютантам, поступающим от предприятий теплоэнергетики, относятся диоксид серы, оксиды азота, оксид углерода, формальдегид, бенз(а)пирен. Совместно с газообразными и жидкими веществами в атмосферный воздух поступают мазутная зола и продукты механического недожога топлива, в состав которых входят тяжелые металлы V, Ni, Cr, Pb, Fe, Sn. Техногенные ...