Skip to main content

Assessment of Water Quality and Ecological Condition of the Oster River


Significant, multilateral, and long-term use of Ukraine’s water resources in various spheres of human activity has led to the deterioration of the state of many water management facilities and the complication of their operational regime. An unfavorable ecological situation developed in 2016 around the Oster River flowing through the territory of the Chernihiv region. This was caused by many factors of anthropogenic impact (intentional and unintentional) that have formed in the agricultural, industrial, housing, and communal sectors. A combination of these factors resulted in some changes occurring in the river ecosystem. The main goal of the present work is an analytical study of water quality in terms of hydrochemical indicators and an assessment of the ecological state of waters of the Oster River. The chemical composition of the surface waters of the city of Oster was analyzed, in particular, by stripping voltammetry for the concentration of heavy metal ions Pb2+, Cu2+, Zn2+, and Cu2+ and colorimetry for the concentration of total Mn2+, \({\text{NH}}_{4}^{ + }\), \({\text{NO}}_{3}^{ - }\), and \({\text{PO}}_{4}^{{3 - }}\). Insignificant excesses of the water quality standard were found for fishery reservoirs in the concentration of organic substances in terms of chemical and biological oxygen consumption, ammonium ions, and phosphate ions. Pollution with ions of these heavy metals in water samples was not recorded, but the concentrations of lead and copper ions tend to increase. Exceeding the total iron and manganese indicators is typical for the Polesye rivers. These phenomena may result from anthropogenic loads and natural anomalies. A comprehensive assessment of the quality of surface waters based on the calculation of the water pollution index revealed that in 2018–2020, surface waters of the Oster River belong to Class III and are characterized as “moderately polluted.” The study results are useful for areas of water protection activities to improve the state of the Oster River and eliminate the negative consequences of anthropogenic impact.

This is a preview of subscription content, access via your institution.

Fig. 1.
Fig. 2.


  1. Yatsik, A.V., Pashenyuk, A., Gopchak, V., and Basyuk, T.O., Assessment of the ecological status of surface waters of small rivers of the Western Bug River basin by the level of pollution (by the example of the Gapa River), Vestn. Agrar. Nauki, 2020, no. 1, pp. 75–80.

  2. Stepova, O.V. and Roma, V.V., Monitoring poverkhnostnykh vod: Uchebnoe posobie (Surface Water Monitoring: A Textbook), Poltava, 2017.

  3. Lozovitskii, P.S., Ecological condition and ecological assessment of the Oster River water on tropho-saprobiological indicators and specific substances of toxic action, Zh. Kartogr., 2016, no. 14, pp. 246–276.

  4. Ladika, M.M., Maksin, V., Kutova, G., and Bordus’, A.O., Ekologicheskoe sostoyanie srednikh rek Levoberezh’ya Ukrainy: Sb. nauch. tr. (Ecological Condition of the Middle Rivers of the Left Bank of Ukraine: Collection of Sci. Papers), Ivanovo, 2013, vol. 50, no. 4, pp. 40–48.

  5. Report on research work on the study of anthropogenic impact on the hydrological and ecological regime of the Oster River in Chernihiv region. 0%a2%d0%95%d0%a0-%d0%97%d0%92%d0%86%d0%a2-%d0%97%d0%90%d0%93%d0%90%d0%9b% d0%ac%d0%9d%d0%98%d0%99-17-12.compressed.output.pdf.

  6. Desnyan Basin management of water resources.

  7. Monitoring and environmental assessment of water resources of Ukraine. http://monitoring.

  8. GOST (State Standard) Nature Protection. Hydrosphere. Apparatus and Mechanisms for Selection, Initial Treatment and Storing Samples of Natural Waters. General Technical Conditions, Moscow: Goststandart, 1981.

  9. GOST (State Standard) Nature Protection. Hydrosphere. General Requirements for Surface and Sea Waters, Ice and Atmospheric Precipitation Sampling, Moscow: Goststandart, 1985.

  10. Metodika vypolneniya izmerenii massovykh kontsentratsii tsinka, kadmiya, svintsa i medi metodom inversionnoi vol’tamperometrii na analizatorakh tipa TA. Kolichestvennyi khimicheskii analiz prob prirodnykh, pit’evykh i stochnykh vod (Method for Performing Measurements of Mass Concentrations of Zinc, Cadmium, Lead, and Copper by Stripping Voltammetry on Analyzers of the TA Type. Quantitative Chemical Analysis of Samples of Natural, Drinking, and Waste Water), Tomsk, 2004.

  11. Maximum Permissible Values of Water Quality Indicators for Fishery Reservoirs. General List of MPC and OBRV of Harmful Substances for Water of Fishery Reservoirs, Kyiv, 1990.

    Google Scholar 

  12. Snizhko, S., Orlov, O.O., Zakrevs’kii, D.V., Kostritsya, M.Yu., and Oliynyk, Yu.S., Gidrokhimiya i radiogeokhimiya rek i bolot Zhitomirskoi oblasti (Hydrochemistry and radiogeochemistry of Rivers and Swamps of Zhytomyr Region), Zhytomyr, 2002, pp. 250–259.

  13. Department of Ecology and Natural Resources.

  14. Snizhko, S., Otsenka i prognozirovanie kachestva prirodnyhh vod (Assessment and Prediction of Natural Water Quality), Kyiv, 2001.

    Google Scholar 

Download references

Author information

Authors and Affiliations


Corresponding author

Correspondence to O. Yu. Kupchyk.

Ethics declarations

The authors declare that they have no conflicts of interest.

Additional information

Translated by O. Zhukova

About this article

Verify currency and authenticity via CrossMark

Cite this article

Kupchyk, O.Y., Derii, Z.V. Assessment of Water Quality and Ecological Condition of the Oster River. J. Water Chem. Technol. 44, 139–144 (2022).

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI:


  • anthropogenic pollution
  • heavy metals
  • hydrochemical parameters
  • water pollution index
  • surface waters
  • Oster River