Statistical analysis of the influence of major tributaries to the eco-chemical status of the Danube River

Ilijević, Konstantin; Obradović, M; Jevremović, Vesna; Gržetić, Ivan

doi:10.1007/s10661-015-4740-y

Cited by 5 publications

(4 citation statements)

References 64 publications

(102 reference statements)

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“…Loadings of variables (10) on significant principal components (with Varimax rotation) for cold and warm seasons. and for increasing the phosphates concentration [66]. Compared to the Danube, the Tisa had elevated values of COD, suspended matter, total dissolved solids, total phosphorus, phosphates and ammonia.…”

Section: Principal Component Analysis/factor Analysismentioning

confidence: 86%

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Assessing Surface Water Quality in the Serbian Part of the Tisa River Basin

Babić¹,

Vuković²,

Voza³

et al. 2019

Pol. J. Environ. Stud.

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Water quality has recently become a major issue in the management of international river basins, especially in Europe. The need for integrating the water quality issues in various environmental initiatives worldwide reflects the profound impact of economic, technological and demographic changes upon freshwater resources, including rivers [1-3]. One can say that water quality is one of the most important factors that have to be considered in order to evaluate the sustainability of a particular watershed [4]. Water quality is, in fact, one of the main characteristics of a river, even when its purpose is other than human water supply; for instance, tourism, transportation and consumption [5]. The quality of surface water bodies is a very sensitive environmental issue. Surface water quality is determined by natural processes-climatic, hydrological and geological (air temperature, precipitation, mean water level, flow variation, soil erosion and basin lithology)-as well as human activities such as urbanization, industry, mining, metallurgy, agriculture

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Section: Principal Component Analysis/factor Analysismentioning

confidence: 86%

“…It originates from the influx of the nutrients (total phosphorus, ammonia, etc.). Unlike some other pollutants that can be neutralized, nutrients remain in the environment even when they are adsorbed by biota [66].…”

Section: Principal Component Analysis/factor Analysismentioning

confidence: 99%

Assessing Surface Water Quality in the Serbian Part of the Tisa River Basin

Babić¹,

Vuković²,

Voza³

et al. 2019

Pol. J. Environ. Stud.

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“…The sampling data sets were processed in Microsoft Excel and R statistical packages (R Core Team, 2015). Median concentrations were used for all stations' results (Ilijevic, Obradovic, Jevremovic, & Grzetic, 2015). Multiple comparisons were used to test significant differences in nutrient concentrations among upstream and downstream stations in the catchments.…”

Section: Statistical Techniquesmentioning

confidence: 99%

Evaluating the effect of diffuse and point source nutrient transfers on water quality in the Kombolcha River Basin, an industrializing Ethiopian catchment

et al. 2018

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Many catchments in sub‐Saharan Africa are subject to multiple pressures, and addressing only point sources from industry does not resolve more widespread diffuse pollution from sediment and nutrient loads. This paper reports on a preliminary study of nutrient transfers into rivers in two catchments in the industrializing city of Kombolcha, North Central Ethiopia. Sampling of rivers and industrial effluents was done over two sampling periods in the wet season of 2013 and 2014. Catchments boundaries and land use map were generated from remote sensing and ground data. Higher total nitrogen (TN) concentrations were found from sub‐catchments with largest agricultural land use, whereas highest total phosphorus (TP) was associated with sub‐catchments with hilly landscapes and forest lands. Emissions from brewery and meat processing were rich in nutrients (median TN: 21–44 mg L−1; TP: 20–58 mg L−1) but contributed on average only 10% (range 4–80%) of the TN and 13% (range 3–25%) of the TP loads. Nutrient concentrations in the rivers exceeded environmental quality standards for aquatic life protection, irrigation, and livestock water supply. In Ethiopia, more than 85% of farmers operate on less than 2 ha of land, with concomitant pressure for more intensive farming. Land is exclusively owned by the State, reducing a sense of land stewardship. As the City of Kombolcha moves to agricultural intensification and increased industrialization, attention is needed to fill gaps in monitoring of nutrient pollution in rivers and use information to reconcile development with land use and its degradation.

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“…The sampling data sets were processed in Microsoft Excel and R statistical packages (R Core Team, 2015). Median concentrations were used for all stations' results (Ilijevic et al, 2015), and Grzetic, 2015). Multiple comparisons were used to test significant differences in nutrient concentrations among upstream and downstream stations in the catchments.…”

Section: Statistical Techniquesmentioning

confidence: 99%

Estimating combined loads of diffuse and point-source pollutants into the Borkena River, Ethiopia

Belachew¹

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I would first like to thank those who have directly been involved in the process leading to this Thesis, my supervisory team, Professor Kenneth Irvine, Dr. Peter Kelderman and Dr. Johannes van der Kwast. They contributed tremendously, both as supervisors and co-authors. Their continuous dedication to the subject and encouragement have had a vital influence on my development as a researcher and the emerging of this Thesis, and offered me the opportunity to turn the data-poor and limited opportunity of studying typical sub-Saharan environmental issues in the industrializing catchment of Kombolcha city into this PhD Thesis. Without the financial grant from the Netherlands Fellowship Programme (Nuffic), this Thesis would not have been realized, and I would like to give special thanks to the Netherland government. During my on-site studies in Kombolcha City, I received large field and data support from the Kombolcha Meteorological Directorate office, the Kombolcha Hydrology office and the Kombolcha City Administration office. The laboratory staff of IHE-Delft has been very helpful in the various laboratory analyses and procedures. I am especially grateful for the contribution of Mr. Fred Kruis, Mr. Ferdi Battes and Mr. Berend Lolkema. Perhaps the most direct assistance was given by those who helped me with the data acquisition in the field sites in Ethiopia. I want to extend my warm appreciation to Mr. Ali Seid, Mr. Beniam Getachew and Mr. Demissie Seid who were at times facing together the frightening lightening during rainstorms, snakes and thorns in the Kombolcha jungles and hyenas at night works. I enjoyed the help of MSc student Ahimed Seid from Ethiopia for collaborating in the analysis of sediment samples in IHE-Delft laboratory, The Netherlands. I also thank my employing organization, Wollo University, for their patience, encouragement and understanding to finish this Thesis. Finally, apart from their encouragement, my family has always offered me the necessary peaceful working environment at home during these years. In particular, I would like to mention my dear wife Abeba Teklie. Without her good care for my son (Eyuel) and daughters (Maramiawit and Arsemawit), I would certainly have been too much strained.

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Statistical analysis of the influence of major tributaries to the eco-chemical status of the Danube River

Cited by 5 publications

References 64 publications

Assessing Surface Water Quality in the Serbian Part of the Tisa River Basin

Assessing Surface Water Quality in the Serbian Part of the Tisa River Basin

Evaluating the effect of diffuse and point source nutrient transfers on water quality in the Kombolcha River Basin, an industrializing Ethiopian catchment

Estimating combined loads of diffuse and point-source pollutants into the Borkena River, Ethiopia

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