The purpose of this study is to analyse the hydrochemical regime and surface water quality upper reaches Tisza River from its source Tiachiv, which also includes transboundary section river. data Borys Sreznevskyi Central Geophysical Observatory State Emergency Service Ukraine for period 1984-2018, as well results route surveys during 2015-2018 served materials study. hydrological parame...

This work is devoted to the study of sanitary and hygienic monitoring fishery water use objects in Murmansk region. The paper presents assessment ecological conditions reservoirs Arctic region Kola Tuloma rivers for period 2016-2018 based on microbiological, hydrochemical parasitological indicators, as well integral index surface pollution. Hydrochemical studies consisted determining biochemica...