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Title: CLIMATIC AND ANTHROPOGENIC INFLUENCES ON WATER QUALITY IN LAKE BRATES, ROMANIA
CLIMATIC AND ANTHROPOGENIC INFLUENCES ON WATER QUALITY IN LAKE BRATES, ROMANIA

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Catalina Iticescu; Puiu-Lucian Georgescu; Madalina Calmuc; Valentina Andreea Calmuc; Catalina Maria Topa
10.5593/sgem2023V/3.2/s12.07
10.5593/sgem2023v/3.2
1314-2704
978-619-7603-64-4
English
23
3.2
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE •    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Hydrology and Water Resources
Lake Brates is located near Galati city, in the south-eastern part of Romania being one of the largest lakes in the country. Unfortunately, water quality has greatly decreased in recent years, both due to human actions and to climate change. The present paper aims at establishing the quality of the water in Lake Brates as resulted from the calculation of the water quality index (WQI) by the weighted arithmetic method. In order to calculate this index, several sampling campaigns were carried out in various points of the lake, followed by the measurement of relevant parameters: pH, conductivity, salinity, oxygen demand (DO), chemical oxygen demand (COD), biochemical oxygen consumption at 5 days (CBO5), NO2 -, NO3 -, N total, Cl-, SO4 2-, PPO4 3-, heavy metals (As3+, Cr3+, Cu2+, Ni2+, Zn2+). Both the individual variation of the monitored physicochemical parameters and the variation of the WQI were tracked. Moreover, a correlation of the WQI with the climatic conditions in the region (rainfall and thermal regime) was established. The determinations were made by applying the standardized methods in force in – situ and ex-situ and by using the following equipment: the UV-Vis-NIR Spectrophotometer, Thermo Scientific Vanquish Flex UHPLC system coupled with the Mass Spectrometer, Thermo Scientific Trace GC coupled with the Quadrupole Mass Spectrometer, the Total Reflection X-Ray Fluorescence (TXRF) Spectrometer and a portable multiparameter.
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The technical support was provided by the Rexdan Research Infrastructure, the infrastructure created through the project An Integrated System for the Complex Environmental Research and Monitoring in the Danube River Area, REXDAN, SMIS code 127065, project co-financed by the European Regional Development Fund through the Competitiveness Operational Programme 2014-2020, contract no. 309/ 10.07.2020
conference
https://doi.org/10.5593/sgem2023V/3.2/s12.07
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Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 28-30 November, 2023
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
51-58
28-30 November, 2023
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WQI, climate change, anthropogenic influences, physicochemicalparameters.