Water quality of small rivers in the Pripyat basin: environmental and fishery assessment
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Дата
2022
Автори
Науковий керівник
Назва журналу
Номер ISSN
Назва тому
Видавець
КПІ ім. Ігоря Сікорського; ТОВ «Українська водна спілка»
Анотація
The study of anthropogenic causes of the deterioration of the state of small rivers is the first step
towards their conservation and restoration, improving the human environment as a whole. The aim
of the study is the fishery and environmental assessment of water quality of small rivers in the
Pripyat River basin (the area of right-bank tributaries in the middle part of the river) within the
Rivne region in the northern-west region of Ukraine. The initial data for the assessment have been
the results of monitoring (27 physical and chemical indicators) during 2010–2018.
The assessment by the integral ecological index (Ie) has shown that the rivers belonged to the II
quality class in terms of average values and were characterized as “clean” and “clean enough”.
According to the worst values, the rivers belonged to the II-III quality classes and were
characterized as “fairly clean” – “slightly polluted” – “moderately polluted”. The best water
quality by the Ie index was established for the Zhabichi River within the urban-type settlement of
Demydivka. Water quality of the Ustia River below the runoff of the cities of Rivne and Zdolbuniv
has corresponded to IV-V classes i.e. was "dirty" and "very dirty" (high content of phosphates,
nitrogen compounds, copper, manganese, and zinc). In terms of trophic state, the water of the rivers
is mesotrophic (according to average values) and eutrophic (according to the worst values), except
for the part of the Ustia River below the runoff of the city of Rivne, where the water is polytrophic.
The rivers have failed to meet water quality standards for fishery water use by COD, BOD5, and
heavy metals content (Cu, Mn, Fe, Zn).
Опис
Ключові слова
monitoring, Pripyat, small rivers, surface water quality, trophic state, малі річки, моніторинг, Прип’ять, трофічний стан, якість поверхневих вод
Бібліографічний опис
Grokhovska, Y. Якість води малих річок басейну Прип'яті: екологічна та рибогосподарська оцінка / Y. Grokhovska, S. Konontsev // Вода і водоочисні технології. Науково-технічні вісті. – 2022. – № 2(33). – С. 43-50.