The cyclicity in the changes in the chemical composition of the water source of the Angara River (Baikal Stock) in 2017–2018 in comparison with the last 20 years of data
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The relevance of the research is due to the increasing need for drinking water in the world, the shortage of which is experienced in many countries. The main aim is the study of the chemical composition of freshwater of the Angara River (the drain of Lake Baikal) and the characteristics of its changes. Methods of research: water was sampled at a distance of 1.5–2 m from the shore, from a depth of 0.4–0.5 m, and at the source water intake with the help of a pump. Samples were taken in clean plastic bottles of 1 L in size to determine SO42−, Cl−, HCO3−, NO2−, HNO3−, SiO2, F−, PO43−, NH4+, O2, EC, EH, Ca2+, Mg2+, Na+, K+, pH, and temperature. The analyses were accomplished according to standard techniques. It is shown that minor changes in the total content of ions in the water of the Angara River source occur daily, monthly, and depend on a season. Graphically, this is expressed by the curve (broken) line, which manifested the increase, maximum, decrease, minimum, and eventually an endless cycle of repeating the sequence of monthly and annual concentrations of the elements. It was found that the average values of the main ions in the water and the total mineralization of the water source of Angara River and Lake Baikal correspond to their average annual values over the past 20 years. The reason for the constant chemical composition of Baikal and Angara waters may be not only the possibility of already proven chemical and biological self-purification but also the additional penetration of deep waters as a result of upwelling and earthquakes on Lake Baikal. It is concluded that it is necessary to continue further geochemical and microbiological monitoring of the Baikal aquatic ecosystem to assess its composition and quality.
KeywordsAngara River source Monitoring Water chemical composition Lake Baikal
- Baicalogy. Novosibirsk: Nauka. 2012. Book 1. (ed. Rusinok O.T. et al.) . p. 468.Google Scholar
- Blinov, V. V., Granin, N. G., Mizandrontsev, I. B., Gnatovsky, R. Y., & Zhdanov, A. A. (2017). (2017). Seasonal changes of the vertical structure of the water column of the pelagic zone of southern Lake Baikal. Journal of Water Resources, 44, 285–295. https://doi.org/10.1134/S0097807817030058.CrossRefGoogle Scholar
- Demyanovich, V. M., & Klyuchevsky, A. V. (2018). Faults and focal parameters of earthquakes of the Baikal rift zone: Angles of incidence of displacement surfaces. J Doklady Earth Sciences, 479(5), 536–541.Google Scholar
- Didenkov, Y. N., Bychinsky, V. A., & Lomonosov, I. S. (2006). The possible of an endogenous source of fresh waters in rift settings. Journal of Geology and Geophysics, 47(1), 1114–1118.Google Scholar
- Evstropyeva, O. V. (2016). Development of the tourism system on the Baikal natural Territory. Journal Geography and Natural Resources. 2016. No. 5. pp. 1841–95. https://doi.org/10.21782/GIPR0206-1619-2016-5(184-195)
- Galazii, G. I. (2002). Baikal in questions and answers. "Forward" LTD (p. 160). Irkutsk.Google Scholar
- Grachev, M. A. (2002). On the current state of the ecological system of Lake Baikal (p. 156). Novosibirsk: Publishing HOUSE of SB RAS (in Russian).Google Scholar
- Grebenshchikov, V. I., & Zagorulko, N. A. (2013). Long-term monitoring studies of macro- and micro-component composition of the Angara River source. Journal Vestnik IGSHA, II(57), 88–95 (in Russian).Google Scholar
- Koval, P. V., Udodov Yu, N., Andrulaitis, L. D., Gapon, A. E., Sklyarova, O. A., & Chernikova, S. E. (2005). Hydrochemical characteristics of surface runoff of Lake Baikal (1997–2003). J Doklady Earth Sciences, 401(3), 452–455 Pleiades Publishing, Ltd.Google Scholar
- Lomonosov, I. S., Grebenshchikova, V. I., Sklyarova, O. A., Bryukhanova, N. N., Noskov, D. A., Yanovskii, L. M., & Didenkov, Y. N. (2011). Toxic (mercury, berillium) and biogenic (selenium, fluorine) elements in aquatic ecosystems of Baikal natural territory. Journal of Water Resources, 38(2), 199–210. https://doi.org/10.1134/S0097807811020084.CrossRefGoogle Scholar
- Parshin, A. V., Shestakov, S. A., Chudnenko, K. V., & Savelyev, E. P. (2013). Evaluation criteria of water geoecological state of the Lake Baikal. J Water: Chemistry and Ecology. No., 9, 24–31 (in Russian).Google Scholar
- Perrot, V., Epov, V. N., Pastukhov, M. V., Grebenshchikova, V. I., Zouiten, C., Sonke, J. E., Husted, S., Donard, O. F. X., & Amouroux, D. (2010). Tracing Sources and Bioaccumulation of Mercury in Fish of Lake Baikal—Angara River Using Hg Isotopic Composition. Journal of Environmental Science and Technology, 44(21), 8030–8037. https://doi.org/10.1021/es101898e.CrossRefGoogle Scholar
- Rossolimo, L. (1971). L (p. 176). Baikal. Vost-Sib. ed (in Russian).Google Scholar
- Shimaraev, M. N., & Domysheva, V. M. (2013). Trends in hydrological and hydrochemical processes in Lake Baikal under conditions of modern climate change. Climatic Change and Global Warming of Inland Waters. John Wiley and Sons, Ltd., Chichester, 43–66.Google Scholar
- Shimaraev, M. N., & Troitskaya, E. S. (2018). Current trends in upper water temperature in coastal zones of Baikal. J Geography and Natural Resources, (4), 95–104. https://doi.org/10.21782/GIPR0206-1619-2018-4.
- Sorokovikova, L. M., Sinyukovich, V. N., Netsvetaeva, O. G., Tomberg, I. V., Sezko, N. P., & Lopatina, I. N. (2015). Chemical composition of snow and river waters on the south-eastern coast of Lake Baikal. J Meteorol. Hydrol, (5), 71–83. https://doi.org/10.3103/S1068373915050076.CrossRefGoogle Scholar
- Suslova, M. Y., Grebenshchikova, V. I., Shtykova, Y. R., Sukhanova, E. V., Podlesnaya, G. V., & Belykh, O. I. (2019). Microbiological assessment of the quality of water Baikal, the troubles of major inelows and the origin of Angara Problems of sustainable development of the region. In IX School-Seminar of Young Scientists of Russia: Materials of reports [Electronic edition] (pp. 156–159). Ulan-Ude: Publishing house BNTS SB RAS.Google Scholar
- Suturin, A. N., Chebykin, E. P., Malnik, V. V., Khanaev, I. V., Minaev, A. V., & Minaev, V. V. (2016). The role of anthropogenic factor in development of ecological stress in lake Baikal littoral (the Listvynka settlement lakescape). J Geography and Natural Resources, (6), 34–53. https://doi.org/10.21782/GIPR0206-1619-2016-6.
- Timoshkin, O. A., Samsonov, D. P., Yamamuro, M., Moore, M., Belykh, O. I., Malnik, V. V., Sakirko, M. V., Shirokaya, A. A., Bondarenko, N. A., Domysheva, V. M., et al. (2016). Rapid ecological changes in the coastal zone of Lake Baikal (East Siberia): Is the site of the world’s greatest freshwater biodiversity in danger? Journal of Great Lakes Research, 42, 487–497. https://doi.org/10.1016/j.jglr.2016.02.011.CrossRefGoogle Scholar
- Vorobyev, N. V., Emelyanova, N. V., Vorobyev, O. V., & Valeeva, O. V. (2016). Population distribution and dynamics in the central ecological zone of the Baikal natural territory. J Geography and Natural Resources, (5), 168–178. https://doi.org/10.21782/GIPR0206-1619-2016-5(168-178).