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17 October 2023 Spatio-temporal variability of small gas impurities in the surface layer of the atmosphere of the southern Baikal region
Maxim Yu. Shikhovtsev, Vladimir A. Obolkin, Tamara V. Khodzher, Yelena V. Molozhnikova
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Proceedings Volume 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 127801N (2023) https://doi.org/10.1117/12.2687772
Event: XXIX International Symposium "Atmospheric and Ocean Optics, Atmospheric Physics", 2023, Moscow, Russian Federation
Abstract
The paper analyzes the results of automatic monitoring of the content of sulfur dioxide and nitrogen dioxide in the surface layer of the atmosphere of the Baikal region for the period 2021–2022. It was shown that the average daily concentrations of sulfur dioxide varied from 1 μg/m3 to 11 μg/m3 in summer and from 3 μg/m3 to 39 μg/m3 in winter. The highest content was registered in the cities of Angarsk and Irkutsk and the village of Listvyanka. In Gusinoozersk, Ulan-Ude, and Selenginsk, sulfur dioxide concentrations were 2–3 times lower than in the cities of the Irkutsk agglomeration. The share of SO2 emissions from stationary sources remained in urban areas and reached various areas of the South Basin. For the cities of the Irkutsk agglomeration, this percentage varied from 2.1% to 6.8%, and for the southern basin of the lake, from 1.3% to 3.1%. It is calculated that from 1 to 3% of nitrogen dioxide emissions from the sources of the Irkutsk agglomeration reaches the water area of southern Baikal.
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Maxim Yu. Shikhovtsev, Vladimir A. Obolkin, Tamara V. Khodzher, and Yelena V. Molozhnikova "Spatio-temporal variability of small gas impurities in the surface layer of the atmosphere of the southern Baikal region", Proc. SPIE 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 127801N (17 October 2023); https://doi.org/10.1117/12.2687772
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KEYWORDS
Sulfur
Nitrogen dioxide
Atmospheric monitoring
Environmental monitoring
Pollution
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