With the help of a nonlinear nonstationary spatial Euler model, the processes of propagation and transformation of solid suspensions, sulfur compounds and nitrogen compounds in the Angara valley and above Baikal were investigated. Calculations were made to assess the impact of meteorological conditions on the dynamics of smoke plumes from anthropogenic sources. Strong convection of heated gases during ejection creates a large variety of aerosol cloud forms, which, when lifted, stratify, are drawn into the general wind flow and can be transported over long distances, covering the basin of Lake Baikal. Constructed maps of the distribution of pollutants near the surface of the earth and at altitude levels. Estimates of sedimentation of suspended solids on the underlying surface were made. It was found that 95 % of the coarse fraction particles (1–20 µm) are deposited on an area of 200×200 km². The contributions of the enterprises of the Priangarie, the Baikal and Transbaikalia to the pollution of Lake Baikal by sulphates and nitrates through the atmospheric channel are calculated. The cities of Slyudyanka and Baikalsk have the greatest influence (53 and 64 %, respectively). Less impact from Irkutsk and Cheremkhovo (18 and 25 %). Transbaikalia enterprises make 29 and 21 % of the contribution. The obtained data can be used when conducting monitoring observations and making forecasts for the development of territories, taking into account local topography and climatic factors. The use of mathematical models of varying degrees of detail is promising and can simplify the preparation and conduct of fairly expensive and complex sampling of air, soil or snow when studying the effect of atmospheric emissions on the environment. 

Potemkin Vladimir Lvovich, Candidate of Sciences (Geography), Senior Researcher, Limnological Institute SB RAS, 3, Ulan-Batorskaya st., Irkutsk, 664033, Russian Federation, tel.: (3952) 42-65-02, e-mail: klimat@lin.irk.ru 

Latysheva Inna Valentinovna, Candidate of Sciences (Geography), Associate Professor, Irkutsk State University, 1, K. Marks st., Irkutsk, 664033, Russian Federation, tel.: (3952) 52-10-94, e-mail: ababab1967@mail.ru 

Makukhin Vladimir Leonidovich, Candidate of Sciences (Technical), Associate Professor, Irkutsk State University, 1, K. Marks St., Irkutsk, 664033, Russian Federation, tel.: (3952) 52-10-94; Limnological Institute SB RAS, 3, Ulan-Batorskaya st., Irkutsk, 664033, Russian Federation, tel.: (3952) 42-65-02, e-mail:aerosol@lin.irk.ru 

Potemkina Tatjana Gavrilovna, Candidate of Sciences (Geography), Senior Researcher, Limnological Institute SB RAS, 3, Ulan-Batorskaya st., Irkutsk, 664033, Russian Federation, tel.: (3952) 42-65-02, e-mail: tat_pot@lin.irk.ru

Potemkin V.L., Latysheva I.V., Makukhin V.L., Potemkina T.G. Peculiarities of Vertical Distribution of Aerosols and Gas Impurities in the Lake Baikal Region. The Bulletin of Irkutsk State University. Series Earth Sciences, 2019, vol. 27, pp. 111-121. https://doi.org/10.26516/2073-3402.2019.27.111 (in Russian)

Akulov A.O. Vliyaniye ugol'noy promyshlennosti na okruzhayushchuyu sredu i perspektivy razvitiya po modeli dekaplinga [The influence of the coal industry on the environment and development prospects on the decoupling model]. Region: ekonomika i sotsiologiya [Region: Economics and Sociology], 2014, vol. 1(81), pp. 272-288. (in Russian)

Arguchintsev V.K., Arguchintseva A.V. Modelirovaniye mezomasshtabnykh gidrotermodinamicheskikh protsessov i perenosa antropogennykh primesey v atmosfere i gidrosfere regiona oz. Baykal [Modeling of mesoscale hydrothermodynamic processes and the transfer of anthropogenic impurities in the atmosphere and hydrosphere of the Lake region. Baikal]. Irkutsk, IGU Publ., 2007, 255 p. (in Russian)

Berlyand M.Ye. Prognoz i regulirovaniye zagryazneniya atmosfery [Forecast and regulation of atmospheric pollution]. Leningrad, Gidrometeoizdat Publ., 1985, 272 pp. (in Russian)

Brimblkumb P. Sostav i khimiya atmosfery [Composition and chemistry of the atmosphere], Trans. with English. Moscow, Mir Publ., 1988, 352 p.

Gershenzon Yu.M., Zvenigorodskiy S.G., Rozenshteyn V.B. Khimiya radikalov ON, NO₂ v zemnoy atmosphere [Chemistry of OH radicals, NO₂ in the Earth's atmosphere]. Uspekhi khimii [Advances in Chemistry], 1990, vol. 59, no. 10, pp. 1601-1626. (in Russian)

Golitsyn A.N. Promyshlennaya ekologiya i monitoring zagryazneniya okruzhayushchey sredy [Industrial ecology and monitoring of environmental pollution]. Moscow, Onyx Publ., 2010, 336 p. (in Russian).

Degodya Ye.Yu., Mal'tseva Ye.V. Vliyaniye avtomobil'nogo transporta na okruzhayushchuyu sredu [Influence of motor transport on the environment]. Sovremennyye problemy transportnogo kompleksa Rossii [Modern problems of the transport complex in Russia], 2016, vol. 6, no. 1, pp. 34-37. 

Arguchintsev V.K., Makukhin V.L., Obolkin V.A., Potemkin V.L., Khodzher T.V. Issledovaniye raspredeleniya soyedineniy sery i azota v privodnom sloye ozera Baykal [Investigation of the distribution of sulfur and nitrogen compounds in the drive layer of the lake Baikal]. Optika atmosfery i okeana [Atmospheric and oceanic optics], 1996, vol. 9, no. 6, pp. 748-754. (in Russian)

Makukhin V.L., Obolkin V.A., Potemkin V.L. Ekstremal'nyye sluchai perenosa gazovykh primesey v atmosfere Pribaykal'ya v zimniy period [Extreme cases of the transport of gas impurities in the Baikal atmosphere in the winter]. Biosfera [Biosphere], 2014, vol. 6, no. 4, pp. 352-358. (in Russian)

Gosudarstvennyy doklad «O sostoyanii i ob okhrane okruzhayushchey sredy Irkutskoy oblasti v 2012» [State report «On the state and protection of the environment of the Irkutsk region in 2012»]. Irkutsk, Institute of Geography im. V. B. Sochavy SO RAS Publ., 2013, 337 p. (in Russian)

Obolkin V.A., Potemkin V.L., Makukhin V.L., Chipanina Ye.V., Marinayte I.I. Osobennosti prostranstvennogo raspredeleniya dioksida sery v Pribaykal'ye po dannym marshrutnykh izmereniy i chislennykh eksperimentov [Peculiarities of the spatial distribution of sulfur dioxide in the Baikal region from routing measurements and numerical experiments]. Meteorologiya i gidrologiya [Meteorology and Hydrology], 2014, no. 12, pp. 35-41. (in Russian)

Makukhin V.L., Obolkin V.A., Potemkin V.L., Latysheva I.V., Khodzher T.V. Otsenki prostranstvennogo raspredeleniya malykh gazovykh primesey nad akvatoriyey ozera Baykal v letniy period s pomoshch'yu polevykh izmereniy i rezul'tatov matematicheskogo modelirovaniya [Estimates of the spatial distribution of small gas impurities over the water area of Lake Baikal in summer with the help of field measurements and results of mathematical modeling]. Izvestiya IGU. Seriya «Nauki o zemle» [Bulletin of Irkutsk State University. Series Earth Sciences], 2016, vol. 18, pp.69-80. (in Russian)

Fedyayeva O.A. Promyshlennaya ekologiya [Industrial ecology]. Omsk, Omsk State Technical University Publ., 2007, 145 p. (in Russian)

Potyomkina T.G., Grachev A.M., Potyomkin V.L., Baryshev V.B. Chemical composition of suspension in water body of Lake Baikal. Nucl. Instrum. Meth. A, 1998, vol. 405, no. 2-3, pp. 543-545.

Dimitroulopoulos C., Marsh A.R.W. Modelling studies of NO₃ nighttime chemistry and its effects on subsequent ozone formation. Atmos. Environ, 1997, vol. 31, no. 18, pp. 3041-3057.

Yang R.R., Long R.Y., Yue T., Zhuang Y.Y. Environmental regulation and industrial performance: An empirical analysis of manufacturing industry in China. Int. J. Sustain. Dev. Plann., 2014, vol. 9, no. 6, pp. 768-777.

Imasu R., Suda A., Matsuno T. Radiative Effects and Halocarbon Global Warming Potentials of Replacement Compounds for Clorofluorocarbons. J. of the Meteorol. Soc. of Japan, 1995, vol. 73, no. 6, pp. 1123-1136.

Li X.-X., Britter R., Norford L.K. Effect of stable stratification on dispersion within urban street canyons: A large-eddy simulation. Atmos. Environ, 2016, vol. 144, pp. 47-59.

Liang D., Fu K., Wang W. Modelling multi-component aerosol transport problems by the efficient splitting characteristic method. Atmos. Environ, 2016, vol. 144, pp. 297-314.

Obolkin V.A., Potemkin V.L., Makukhin V.L., Chipanina Ye.V., Marinayte I.I. Low-level atmospheric jets as main mechanism of long-range transport of power plant plumes in the Lake Baikal Region. Intern. J. of Environ. Studies, 2014, vol. 71, no. 3, pp. 391-397.

Armerding W., Spickermann M., Walter J. and Gomes F.J. MOAS: An Absorption Laser Spectrometer for Sensitive and Loae Monitoring of Tropospheric OH and Other Trace Gases. J. of Atmos. Sci., 1995, vol. 52, no. 19, pp. 3381-3392.

Strizhenok A.V., Ivanov A.V.. Ecological Assessment of the Current State of Environmental Components on the Territory of the Impact of Cement Production Industry. J. of Ecol. Engineering, 2017, vol. 18, no. 6, pp. 160-165.

Thompson A.M. Measuring and Modeling the Tropospheric Hydroxyl Radical (OH). J. of Atmos. Sci., 1995, vol. 52, no. 19, pp. 3315-3327.

Xie Z.-T., Hayden P., Wood C.R. Large-eddy simulation of approaching-flow stratification on dispersion over arrays of buildings. Atmos. Environ., 2013, vol. 71, pp. 64-74.