UDC 546.22
UDC 549.291.1
Based on continuous measurement data of sulfur dioxide (SO₂) and gaseous elemental mercury (Hg⁰) concentrations conducted at the Listvyanka station from 2024 to 2025, it was established that the maximum values of these pollutants are recorded in winter under prevailing northwestern air flows. Data analysis revealed a strong correlation between SO₂ and Hg⁰ concentrations (r > 0.7), indicating a common source, likely coal-fired thermal power generation. To model transport processes using the HYSPLIT model, groups of meteorological conditions were identified where the contribution of regional sources at the observation point is most pronounced. Modeling results demonstrated adequate reproduction of the spatial distribution of the studied pollutants.
atmospheric pollution, southern Baikal region, numerical modeling, HYSPLIT
1. Shikhovtsev M.Y., Molozhnikova Y.V., Obolkin V.A., Potemkin V.L., Lutskin E.S., Khodzher T.V. Features of Temporal Variability of the Concentrations of Gaseous Trace Pollutants in the Air of the Urban and Rural Areas in the Southern Baikal Region (East Siberia, Russia) // Applied sciences. 2024. – V. 14. – № 18. – P. 1-19. DOI:https://doi.org/10.3390/app14188327
2. Stein AF, Draxler RR, Rolph GD, Stunder BJ, Cohen MD, Ngan F. NOAA’s HYSPLIT atmospheric transport and dispersion modeling system. Bulletin of the American Meteorological Society. 2015 Dec 1;96(12):2059-77
3. Luckin E.S., Makuhin V.L. Model'nye i eksperimental'nye raschety postupleniya gazoobraznoy elementarnoy rtuti v atmosferu yuzhnogo Pribaykal'ya ot szhiganiya uglya na krupnyh TEC Irkutsko-Cheremhovskogo promyshlennogo uzla // Materialy XXX Mezhdunarodnogo simpoziuma "Optika atmosfery i okeana: Fizika atmosfery". 1-5 iyulya 2024 g. Sankt-Peterburg red. Harchenko O.V. – Tomsk: Izdatel'stvo IOA SO RAN. 2024. – S. V241-V245
4. Mashyanov N., Obolkin V.A., Pogarev S., Ryzhov V., Sholupov S., Potemkin V.L., Molozhnikova E.V., Khodzher T.V. Air mercury monitoring at the Baikal area // Atmosphere. 2021. – V. 12. – № 7. – P. 807. DOI:https://doi.org/10.3390/atmos12070807
