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Title: EVALUATION OF THE SURFACE WATER QUALITY PARAMETERS OF THE SF. GHEORGHE BRANCH - DANUBE DELTA, ROMANIA
EVALUATION OF THE SURFACE WATER QUALITY PARAMETERS OF THE SF. GHEORGHE BRANCH - DANUBE DELTA, ROMANIA

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Irina Catianis; Ana Bianca Pavel; Florin Dutu; Catalina Gavrila; Ovidiu Borzan
10.5593/sgem2024v/3.2/s14.23
10.5593/sgem2024v/3.2
1314-2704
978-619-7603-76-7
English
24
3.2
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE •    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Marine, Ocean, and Coastal Ecosystems. Blue Carbon
Generally, water quality involves the water’s physical-chemical and biological attributes that depend on the natural surrounding environment and anthropogenic impacts. Through the years, the river water quality in the Sf. Gheorghe Branch has been subjected to various hydro-sedimentary impacts, due to the anthropogenic meander cut-off plans initiated for navigational objectives. In this study, the Sf. Gheorghe Branch water quality evaluation was performed using in-situ observations, measurements, and datasets provided by EXO Water-Quality Sondes and Sensors, during May 2024, a period defined by the high-water levels of the Danube River. Thereby, surface water quality parameters. i.e., water temperature (oC), pH (unit.), dissolved oxygen (mg/L), dissolved oxygen saturation (%), chlorophyll ”a” (µg/L), electrical conductivity (µS/cm), total dissolved solids (mg/L), salinity (psu), turbidity (NTU) and oxidation-reduction potential (mV) were evaluated immediately in-situ, at each site location. The results were plotted spatially as binary diagrams and corroborated with the national and international water reference standards to estimate the water quality status. The longitudinal distribution (along the upstream-downstream gradient) of the investigated water quality parameters along the entire Sf. Gheorghe River water (km 85 – km 15) has been identified as suitable for biodiversity, natural ecosystem assets, and ecological processes. In the context of high-water levels of the Danube River (May 2024), the obtained results complied with the imposed limits provided for the water quality criteria (Very Good and Good). The importance of this study may be considered as an approach to yield a basis for water quality assessment. Subsequently, these contributions may be used to water management strategies to overcome the insidious challenges to which the ecosystems of the Danube Delta are subjected.
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This scientific paper was performed through the support of the Romanian Ministry of Research, Innovation and Digitalization of the Research Core Program, within the National Plan for Research, Development and Innovation 2022-2027, Projects – PN 23 30 03 04 and PN 23 30 03 02.
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https://doi.org/10.5593/sgem2024v/3.2/s14.23
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 27 - 30 November, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, 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.
167-174
27 - 30 November, 2024
website
10067
Danube River, dissolved oxygen, environmental, physical-chemical parameters, surface water quality

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