Snow cover as a factor of impact on the chemical composition of the Pereemnaya River water (South-Eastern coast of Baikal)

L. M. Sorokovikova; O. G. Netsvetaeva; I. V. Tomberg; Y. V. Molozhnikova

doi:10.1117/12.2602049

15 December 2021 Snow cover as a factor of impact on the chemical composition of the Pereemnaya River water (South-Eastern coast of Baikal)

L. M. Sorokovikova, O. G. Netsvetaeva, I. V. Tomberg, Y. V. Molozhnikova

Author Affiliations +

Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 119162G (2021) https://doi.org/10.1117/12.2602049
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

The long-term (1997-2020) comprehensive investigations at the EANET surface water monitoring station Pereemnaya River allowed defining changes of chemical composition of snow and river water on the southeast coast of Lake Baikal. We demonstrated that deicing salts, highway and railway transport as well as the transfer of gaseous contaminants from the Irkutsk-Cheremkhovo industrial zone are the main sources of pollution of the snow cover after the shutdown of the Baikalsk Paper and Pulp Mill. The impact of these sources changed the composition of major ions and reduced the equivalent concentration ratio of major cations and anions as well as pH value of snow water. The multiyear input of acid precipitation to the Pereemnaya River resulted in its acidification. Its water becomes little by little richer in minerals due to intensification of rock erosion under the impact of acid precipitation.

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L. M. Sorokovikova, O. G. Netsvetaeva, I. V. Tomberg, and Y. V. Molozhnikova "Snow cover as a factor of impact on the chemical composition of the Pereemnaya River water (South-Eastern coast of Baikal)", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 119162G (15 December 2021); https://doi.org/10.1117/12.2602049

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