Integrated Assessment of the Southern Bug River Basin Water Quality and Calculation of their Self-Cleaning Capacity

  • O. O. Ukhan Ukrainian Hydrometeorological Institute of the State Emergency Service of Ukraine and National Academy of Sciences of Ukraine, 37 Prospekt Nauky, Kyiv, 03028, Ukraine https://orcid.org/0000-0002-4856-7175
  • Yu. A. Luzovitska Ukrainian Hydrometeorological Institute of the State Emergency Service of Ukraine and National Academy of Sciences of Ukraine, 37 Prospekt Nauky, Kyiv, 03028, Ukraine
Keywords: integral index, nitrogen compounds, self-purification, phosphorus compounds

Abstract

Purpose. To carry out the surface water quality assessment of the Southern Bug river basin and to investigate the ability of surface water to self-purify.

Methods. Statistical calculations, system analysis.

Results. The long-term dynamic of the integrated quality index values of the Southern Bug during 2000-2016  was heterogeneous, but the general trend indicated a slight increase due to the sanitary-ecological index and pollution index. The highest level of water pollution was observed in Khmelnytsky city and Alexandrovka settlement. To assess the self-purification capacity of surface waters, the hydrological zoning of the basin was taken. According to it three regions were identified by the types of intra-annual runoff distribution: Verkhnyobuzky, Serednyobuzky and Nizhnobuzsky. The obtained results of EC coefficient calculations for mineral nitrogen compounds show the inability of rivers to self-purify for Verkhnyobuzky and Serednyobuzky regions. Instead, the ability to self-purify is preserved for phosphorus compounds.Using the nonparametric Mann - Kendall test allowed to estimate the long - term trend of nutrients for the Nizhnobuzsky hydrological region. Trends N-NO3-, N NH4+and Р-РО43- are characterized by positive values of the statistical parameter, which means the increasing of these elements’ concentrations.

Conclusions. Rivers of the Southern Bug basin are classified as "good, clean enough". The main ecological and hydrochemical problems of the river are pollution by nutrients and indicators of toxic action. The results of the self-purification criterion calculations indicate their inability (in the upper and middle parts of the basin) to self-purification. Using of the nonparametric Mann-Kendall test for determining changes in nutrient compounds shows an upward trend, that means increasing of their concentrations.

Downloads

Download data is not yet available.

Author Biographies

O. O. Ukhan , Ukrainian Hydrometeorological Institute of the State Emergency Service of Ukraine and National Academy of Sciences of Ukraine, 37 Prospekt Nauky, Kyiv, 03028, Ukraine

Candidate of Geographical Sciences, Senior Research Fellow, Department of Hydrochemistry

Yu. A. Luzovitska , Ukrainian Hydrometeorological Institute of the State Emergency Service of Ukraine and National Academy of Sciences of Ukraine, 37 Prospekt Nauky, Kyiv, 03028, Ukraine

Candidate of Geographical Sciences, Senior Research Fellow, Department of Hydrochemistry

References

Osadcha N.M. (2016). New researches of ecological condition of reservoirs of urbanized territories: Review of the monograph: O.V. Romanenko, O.M. Arsan, L.S. Kipnis, Yu.M. Sytnyk "Ecological prob-lems of Kyiv reservoirs and adjacent territories". UHMI scientific works, 268, 110-111. Retrieved from http://nbuv.gov.ua/UJRN/Npundgi_2016_268_17 (In Ukrainian).

Osadchyy V, Nabyvanets B., Linnik P., Osadcha N., & Nabyvanets Yu. (2016). Processes determining surface water chemistry. Springer International Publishing, Switzerland. Retrieved from https://link.springer.com/book/10.1007%2F978-3-319-42159-9

Khilchevsky V.K., Chunaryov O.V., & Romas M.I. (2009). Water resources and river water quality of the Southern Bug basin. Кyiv, Nika-Centr. (In Ukrainian).

Afanasyev S., Peters A., Stashuk V., & Yaroshevich O. (2014). Management plan of the river basin of the Southern Bug: analysis of the situation and priority measures. Kyiv: Publishing House LLC "SPE" Interservice". Retrieved from https://mk-vodres.davr.gov.ua/sites/default/files/Bug_plan_final_2.pdf (In Ukrainian).

Ukhan O.O (2017). Calculation of the coefficient of self-purification of surface waters of the Southern Bug. Proceedings of the international scientific-practical conference:Theory and Practice of Modern Science, Brest, 2017, February 24-25 (pp. 47-50). Part II. (In Ukrainian).

Ukhan O.A. (2017). Assessment of surface water quality of the Southern Bug river basin. Proceedings of the International scientific-practical conference, Brest, 2017, September 25-27(pp. 212-215). (In Russian).

Romanenko V.D., Zhukinsky V.M., & Oksiuk O.P. (1998). Methods of ecological assessment of surface water quality by relevant categories. Kyiv: SYMVOL-T. (In Ukrainian).

Thongdonphum, B., Meksumpun, S., & Meksumpun, C. (2011). Nutrient loads and their impacts on chlorophyll in the Mae Kong River and estuarine ecosystem: an approach for nutrient criteria devel-opment Water Science and Technology, 64(1), 178-188. https://doi.org/10.2166/wst.2011.515

Salmi, T., Määttä, A., Anttila,P., & Amnell, T. (2002). Detecting trends of annual values of atmospheric pollutants by the Mann-Kendall test and Sen’s slope estimates-the excel template application MAKESENS. Helsinki, Finnish Meteorological Institute, Air Quality Research Publications. Retrieved from www.researchgate.net/publication/259356944

Khilchevsky V.K., Chunaryov O.V., Romas M.I. Yatsyuk M.V., & Babich M.Ya. (2009). Water re-sources and river water quality of the Southern Bug basin. Kyiv, Nika-Center. Retrieved from https://www.twirpx.com/file/2518357/ (In Ukrainian).

Luzovitska Y.A., Koshkina O.V., Osadcha N.M. (2014). Influence of water runoff on the formation of nutrient removal in the Desna river basin. Hydrology, hydrochemistry, hydroecology, 2(33), 37-45 (In Ukrainian).

Luzovitska Y.A., Osadcha N.M., Artemenko V.A. (2017). Analysis of factors formation of water bio-genic composition of the Desna river by means of total and difference integral curves. Hydrology, hy-drochemistry and hydroecology, 1(44), 85-94. (In Ukrainian).

Horbacheva L.O., Vasilieva O.S. (2013). Terms and duration of periods and seasons of the water man-agement year in the basin of the Southern Bug River. UHMI scientific works, 265, 39-45 Retrieved from https://uhmi.org.ua/pub/np/265/Gorbachova_Vasuleva_265.pdf (In Ukrainian).

Grebin V.V. (2010). Modern water regime of rivers of Ukraine (landscape-hydrological analysis). Кyiv: Nika-Centr. Retrieved from http://geo.univ.kiev.ua/images/doc_file/navch_lit/kafedra_gidrol_lit/10_n_lit_gidrol.pdf (In Ukraini-an).

Ukhan O.O. (2016). Peculiarities of spatio-temporal distribution of major ions, organic substances and nutrients along the Southern Bug River. Man, and the environment. Problems of neoecology, (25). 20-31. Retrieved from http://journals.uran.ua/ludina_dov/article/view/76761 (In Ukrainian).

Published
2021-06-02
How to Cite
Ukhan , O. O., & Luzovitska , Y. A. (2021). Integrated Assessment of the Southern Bug River Basin Water Quality and Calculation of their Self-Cleaning Capacity. Man and Environment. Issues of Neoecology, (35), 48-57. https://doi.org/10.26565/1992-4224-2021-35-05