Chemical Composition And Water Quality Of Surface Waters In Ukraine
Author(s)
V. Osadchy, N. Osadcha & Ju. Nabyvanets
Abstract
Surnnlarizing or last decade data concerning Ukraine's surfice waters chemical
conlposition have been carried out. Changes of niincralization. pH. mineral
forms of phosphorus and nitrogen, heavy metals and humic substances in water
of main river basins were shou.11.
It was fo~uid, that in basins of Zapadny B L I ~ . Dnieper, Danube and Seversky
Donets the tendency of pH increase is being observed for the long time. It also
shouid be mentioned that almost for all studied river basins of Ukraine
decreasing of phosphorus mineral forms concentrations were identified. That
finding allows concluding about obvious discontinuance of global process of
surface water eulrophication by phosphorus cornpounds. Also the comparati1;e
analysis of data sets obtained in early 60-s and for period of 1995-2000 indicated
the tendency olN,,,,,, and NIL' decreasing almost in 2 times.
Relatively high concentrations of dissolved organic matter would be
considered as a positive factor of water selfpurification from toxic f
Keywords
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