river water quality Articles

  • The impact of farming on river banks on water quality of the rivers

    Abstract A study was carried out in a strip of a river in the dry and rainy seasons to assess the effect of farming along river banks on the quality of water in rivers. The results showed that there was an increase in the concentration of nitrate in the water downstream in both the rainy and dry seasons. In both rainy and dry seasons, the total nitrogen in the soil was highest (p ...

  • Microbiological water quality of the Nišava River

    Microorganisms are the ideal indicators of the organic pollution of the surface waters because of their ability to promptly respond to environmental changes. Due to poor economic situation and lack of law implementation, most wastewaters in Serbia are released directly into a surface water recipient without any, or a limited, treatment. This practice has created numerous highly polluted ...


    By IWA Publishing

  • Water Quality Parameters Along Rivers

    Water samples have been collected from a part of Surma River along different points and analyzed for various water quality parameters during dry and monsoon periods. Effects of industrial wastes, municipal sewage, and agricultural runoff on river water quality have been investigated. The study was conducted within the Chattak to Sunamganj portion of Surma River, which is significant due to the ...

  • Assessment of River Water Quality in Northwestern Greece

    The effect of land use patterns on river water quality was studied in three different river basins located in Epirus, Northwestern Greece. Studies were conducted from October 2000 to {September} 2001. During this period, the parameters chemical oxygen demand (COD), biological oxygen demand (BOD), NO2–, NO3–, NH4+ and PO43– were measured, employing standard methods of analysis. The results were ...


    By Springer

  • Review of spatial variations in water quality in the Gediz River

    The Gediz River is one of the most important and main water source for the Gediz Basin of the Aegean region and Turkey. In this study, 18 water samples were collected from the source to the end of the river. Change in water quality, some trace elements and heavy metal contents of the Gediz River were determined. Analysis of the Fe, Cu, Mn, Zn, Pb, Cr, Co, Cd and Ni showed that the quantity of Fe ...


    By Inderscience Publishers

  • Continuous water quality monitoring on Kolubara River

    The first automated station for water quality monitoring located in Beli Brod on the Kolubara river has launched on July 2008. The station was established as the result of RHMSS participation in Twinning project financed by EU, where RHMSS was entrusted with the Component 2 of this project. Installed equipment continually records values of water level, temperature, pH, electroconductivity and ...

  • The influence of lagoon on neighboring rivers by water and sediment quality

    Canonical discriminant analysis (CDA) was applied in order to distinguish the water-quality and the sediment-quality parameters from neighboring rivers, and to recognize similarities of water and sediment properties between a lagoon and neighboring rivers. Two set of constructed discriminant functions showed a marked contribution to most of the discriminant variables. In water, the significant ...


    By IWA Publishing

  • Water quality assessment of a polluted urban river

    Urban rivers in Latin America are heavily impacted by human activities that affect their functions and services. This paper shows the results of a water quality assessment for the Reconquista River, the second most polluted urban river in Argentina. They allowed the identification of the main processes of transport of pollutants and the prioritisation of different areas of the basin for ...


    By Inderscience Publishers

  • A hydrodynamic water quality model for propagation of pollutants in rivers

    Numerical modelling can be a useful tool to assess a receiving water body's quality state. Indeed, the use of mathematical models in river water quality management has become a common practice to show the cause-effect relationship between emissions and water body quality and to design as well as assess the effectiveness of mitigation measures. In the present study, a hydrodynamic river water ...


    By IWA Publishing

  • Impact of barrages on downstream air entrained in water and on upstream river water quality

    This research studies the effect of barrages on upstream river water quality and on its self-assimilative. Also, the impact of barrages on upstream water temperature profile is studied. The amount of entrained air in water at river downstream side as a result of barrage existence is also studied. Constructing barrages in river reaches will alter its hydraulics and thus its water quality and ...


    By Inderscience Publishers

  • Water & Rivers Commission

    The Water and Rivers Commission manages the water resources of Western Australia with an area of about 2.5 million square kilometres. The Information and Systems Group in the Hydrologic Measurement Support Section at the Water and Rivers Commission maintains data archives SWRIS (State Water Resources Information System) and Hydstra. SWRIS is used predominantly for the storage of water quality ...


    By KISTERS AG

  • OVA5000 used to gather river quality data in Greece

    Cogent Environmental, in collaboration with its Greek partner, has recently completed a successful installation of one of its online heavy metal analysers, the OVA5000, in a remote location in the Amvrakikos Kolpos region of Greece. Cogent Environmental’s capabilities Cogent Environmental Ltd specialises in the development of online systems for monitoring heavy meals, ...

  • GIS and ordination techniques for studying influence of watershed characteristics on river water quality

    Landscape characteristics of twenty-eight sub-catchments within the Miyun reservoir watershed in Miyun County, northeast Beijing of China were examined to identify relationships with stream water chemistry. The influences of the entire catchment and 300 m buffer zone on water quality were compared using multiple regression analysis and redundancy analysis during three seasons. Results showed that ...


    By IWA Publishing

  • Water quality in two Icelandic rivers: the influence of impoundment, agriculture, glaciation and permafrost

    The water quality of Icelandic rivers is controlled by a number of natural and anthropogenic factors interacting at complex spatial and temporal scales. This article presents the findings of a study into the water quality of two Icelandic rivers; the Blanda and the Skjálfandafljót. The study investigated the impact of three of the factors influencing water quality in these rivers: ...


    By IWA Publishing

  • Centinela: an early warning system for the water quality of the Cauca River

    The Cauca River is the drinking water source for 1.3 million inhabitants of the city of Cali, Colombia. Although the river discharge is sufficient to handle the water demand of the city all year long, significant water pollution events cause frequent disruption to the Puerto Mallarino Treatment Plant (PMTP) and the water supply service, with substantial social and economic impacts on the city. ...


    By IWA Publishing

  • Reconstruction of river water quality missing data using artificial neural networks

    The monitoring of river water quality is important for human life and the health of the environment. However, water quality studies in many parts of the world, especially in developing countries, are restricted by the existence of missing data. In this study, the efficiency of the multilayer perceptron (MLP) and radial basis function (RBF) networks for recovering the missing values of 13 water ...


    By IWA Publishing

  • Water quality and antifungal susceptibility of opportunistic yeast pathogens from rivers

    Yeasts from water sources have been associated with diseases ranging from superficial mucosal infections to life threatening diseases. The aim of this study was to determine the water quality as well as diversity and antifungal susceptibility of yeasts from two rivers. Yeast levels and physico-chemical parameter data were analyzed by principal component analysis to determine correlations ...


    By IWA Publishing

  • Developing a water quality management model for karun and dez rivers

    More than one third of Iran’s total surface water of 94 billion m3 is flowing into the Khuzestan province but ironically most of its inhabitants are suffering from poor quality drinking water, especially during the summer months. More than 70% of the four million population of the khuzestan province, which includes the inhabitants of the provincial capital city of Ahvaz and the two major port ...


    By University of Tehran

  • Error analysis for river water quality prediction using back propagation modelling

    The purpose of this research is to describe the errors of Back Propagation (BP) technique that could be applied in river water quality prediction. ANN was trained by using the upriver data to forecast the downriver quality in two approaches of long-distance forecasting and short-distance forecasting respectively. It showed that the predicted results from short-distance approach were more accurate ...


    By Inderscience Publishers

  • Are people willing to pay for river water quality, contingent valuation

    Now a day’s water pollution has caused incoveriences for people whom live near the Pavana river in Pune city, India. The river water quality has deteriorated by major water quality parameters like dissolved oxygen (DO), biological oxygen demand (BOD) and phosphates level. In present study it is tried to find people’s willingness to pay (WTP) for improvement of river water quality. Contingent ...

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