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UDC 504.453                                     https://doi.org/10.17721/2308-135X.2020.60.86-92

Smilii Pavlo Mykolaiovych Eastern European Lesya Ukrainka National University, Lutsk, Ukraine

Melniychuk Mykhailo Mykhailovych,

Candidate of Geographical Sciences, Associate Professor Eastern European Lesya Ukrainka National University, Lutsk, Ukraine, e-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

ECOLOGICAL ASSESSMENT OF SURFACE WATER QUALITY OF ROSTAVYTSIA RIVER

Purpose – perform ecological assessment of the surface waters of the Rostavytsia river within the Zhytomyr region.

Method. Environmental assessment of the surface water of the Rostavytsia river was carried out using the system of classification of standards for the assessment of surface water quality of Ukraine. On the basis of common environmental criteria, the methodology makes it possible to compare the quality of water at different sites of water bodies, in water bodies of different regions. The calculation of the ecological assessment of water quality was carried out within three blocks: block of salt composition (І1), block of trophic-saprobiological (ecological-sanitary) indicators (І2) and block of indicators of content of specific substances of toxic action (І3). The results are presented in the form of a combined environmental assessment based on the final conclusions of the three blocks and based on the calculation of the integrated environmental index (IE).

Results. Omprehensive studies on changing the water quality of the Rostavytsia river were conducted within the Zhytomyr region during 2016-2017. The water quality of the river according to the final values of the integral indicators of water quality of the three blocks varies within the II and III quality classes. The total environmental indices (IE) for the mean and worst indices are 3,2 and 3,3 respectively. In general, the water quality along the main channel of the Rostavytsia river within the Zhytomyr region corresponds to the second class, 3 categories, 3 subcategories according to the average quality indicators and 3(4) subcategories by worst performance. The total values of the integral surface water quality indicators of the Rostavytsia river indicate their contamination by trophic-saprobiological components.

Scientific novelty. For the first time, on the basis of analytical studies and stock materials, an ecological assessment of the surface waters of the Rostavytsia river within the Zhytomyr region was carried out by three blocks of indicators: salt composition, trophic-saprobiological indicators and specific toxic substances. The integral ecological index is determined. The trends of pollutants accumulation in the surface waters of the Rostavytsia river have been established.

Practical significance. The conducted researches allowed to analyze and evaluate the ecological status of the surface waters of the Rostavytsia river within the Zhytomyr region, which will allow to establish ecological standards of water quality and on this basis to determine the main directions for improvement of water resources and to substantiate the system of recommendations aimed at improving the ecological status of the studied basin.

Key words: surface water, river, river basin, environmental assessment, water quality.

References:

1. Alёkyn O.A. Osnovы hydrokhymyy. L. : Hydrometyzdat, 1970. 444 p.

2. Hryb Y. V. Klimenko M. A., Sondak V. V. Restorative hydroecology of disturbed river and lake systems (hydrochemistry, hydrology, management): textbook. allowance. T. 1. Exactly: Rivne. state tech. Univ., 1999. 348 р.

3. Гидроэкологическое состояние бассейна реки Рось / Под ред. В. К. Хильчевский. К .: Ника-Центр, 2009. 116 с.

4. Methods of establishing and using ecological standards for surface water quality of land and estuaries of Ukraine K. : [b. c.], 2001. 48 p.

5. Palamarchuk M. M., Zakorchevna N. B. Water Fund of Ukraine : A Reference Guide. Kyiv: Nika-Center, 2001. 392 p.

6. Rudenko LG, Denisova OI, Yatsyk AV Ecological assessment of the current state of surface waters (methodical aspects). Ukrainian Geographical Journal, 1996. № 3. P. 35–38.

7. Snizhko SI Estimation and prediction of natural water quality. Kyiv: Nika-Center, 2001. 264 p.

8. Yurasov S. M., Safranov T. A., Chugay A. V. Assessment of natural water quality: a textbook. Odessa : Ecology, 2012. 168 p.

9. Yatsyk A. V, Zhukinsky V. M, Chernyavskaya A. P, Ezlovetska I. S. Experience in using "Methods of ecological assessment of surface water quality by relevant categories" (explanations, reservations, examples). K. : Oriyani, 2006. 44 p.

10. Yatsyk A. V. Ecological basis of rational water use K.: Genesis, 1997. 640 p.

11. Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000, establishing a framework for Community action in the field of water policy // Official Journal of the European Communities. EN. – 22.12.2000. L. 327. pр. 1–72.

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