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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 provi...

Managing water deficits in coastal areas presents significant challenges amid current climate fluctuations. This study examines the hydrological and water management factors contributing to seawater intrusion along the Bulgarian Black Sea coast. Utilizing data from field monitoring and hydrological model simulations, the research highlights the anthropogenic impacts shaped by the structure and dynamics of water supply. Findings reveal that rainfall levels in the Bulgarian Black Sea coastal region are below the nat...

There is a worldwide ecological problem of anthropogenic eutrophication. The problem is especially serious one for the ecosystems of lakes, water-storage basins, and closed seas, such as the Baltic Sea. The eastern part of the sea is the Neva Bay. The water area is totally located within the administrative border of St. Petersburg and is influenced by the megacity. There is monitoring of the total nitrogen and phosphorus inflow into the Neva Bay with water of the Neva River and its spill streams. Nevertheless, the...