Abstract
This paper analyzes the results of the automatic (in situ) recording of the regional transport of pollutants from the large regional coal-fired thermal power plants in the atmospheric boundary layer above the southern basin of Lake Baikal. Due to high stacks (about 200 m), emissions from large thermal power plants rise to the altitudes of several hundreds of meters and spread over long distances from their source by tens and hundreds of kilometers. The continuous automatic monitoring of the atmosphere in the southern basin of Lake Baikal on top of the coastal hill (200 m above the lake) revealed the transport of a large number of sulfur oxides and nitrogen oxides in the form of high-altitude plumes from thermal power plants of the large cities located 70 to 100 km to the northwest of the lake (Irkutsk and Angarsk). The consequence of such transport is the increased acidity of precipitation in the southern basin of Lake Baikal and the additional influx of biogenic nitrogen compounds to the lake ecosystem. The spatial scale and possible risks of such regional transport of air pollution for the lake ecosystem require further closer study.
Highlights
Anthropogenic sulfur and nitrogen oxides are the most common pollutants of the atmospheric boundary layer in many regions of the world [1,2,3,4]
The data on the high-resolution automatic monitoring of sulfur oxides and nitrogen oxides in the area of the southern basin of Lake Baikal indicate significant air pollution coming through the southwestern border of the lake
The source of this pollution is primarily the regional industrial centers located to the west and northwest of the lake (Irkutsk, Angarsk, and more distant cities) along the valley of the Angara River, which
Summary
Aims to analyze specific cases of automatic records of highaltitude transport of air pollution to Lake. Small settlements using mainly low-capacity houses predominate directly of in this transport different seasonszone of the contribution to air pollution deposition the area of thein central ecological of year, Laketheir. The total atmospheric emission from on lake, and the possible impact on its ecosystem
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