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MONITORING OF SUCEAVA RIVER UPSTREAM AND DOWNSTREAM OF THE HOMONYMOUS CITY IN 2018 AND 2019
Abstract
Water level, electrical conductivity, dissolved oxygen, oxidation-reduction potential and pH of Suceava River were monitored in 2018 and 2019 in order to assess the upstream-downstream evolution of these parameters and the impact of Suceava City on this river that divides its built area. The measurements were done automatically every hour with two AquaTROLL 500 instruments. This study focuses on analyzing distinct time intervals with typical and atypical fluctuations of the selected parameters as well as on identifying some periods when the upstream and downstream time intervals have different behaviors. Streamwater pollution events were detected by some parameters, e.g. by peaks in specific conductivity recorded only downstream, where higher than upstream values are constantly recorded. Our study shows that Suceava city has a measurable impact on Suceava River. The downstream monitoring point indicates that, after passing through the urban area, Suceava River has more polluted waters, as revealed by the increased values of specific conductivity and the lowered values of dissolved oxygen, oxidation-reduction potential and pH. Causes and effects of the observed values are also discussed.
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