river water quality Articles

  • 5 Common questions about fluoride in water

    Fluoride in water can be both naturally occurring, or artificially added. In the latter case, this is usually with the objective of aiding oral hygiene in populated areas. Because of its controlled addition in many water systems around the world, it has become associated with a number of different controversies, myths and confusion. Whether you are interested in monitoring fluoride in ...


    By Aquaread Limited

  • 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 ...

  • Why are we monitoring nutrients at different depths?

    Recently, LG Sonic introduced the MPC-Lab, an innovative monitoring buoy that can monitor algae, physico-chemical variables, and even nutrients such as nitrogen and phosphorus in near real-time and at different depths in a body of water. Combined with our other monitoring tools, this system offers a unique way to detect the spatial and temporal patterns of nutrient concentrations which play a ...


    By LG Sonic

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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

  • A system dynamics-based conflict resolution model for river water quality management

    Conflict is a disagreement among individuals or groups that differ in attitudes, beliefs, values or needs. Contemporary water resources management is a combined process of sharing water and resolving conflicts among decision makers and stakeholders. Stakeholders in this context refer to individuals, organizations, or institutions that have stakes in the outcome of decision related to water or ...


    By University of Tehran

  • Water quality assessment of Yamuna River in Delhi region using index mapping

    Water quality indices (WQI) were introduced with the aim of reducing great amount of parameters into a simpler expression and enabling easy interpretation of monitoring data. In this study, an attempt has been made to devise a methodology to integrate the WQI with geographic information system (GIS) for an effective interpretation of the quality status of the river. River Yamuna in Delhi has been ...


    By Inderscience Publishers

  • Hydrochemistry and water quality assessment of the Maroon River in Behbahan area, SW Iran

    Assessing water quality is important in optimizing water usage. In this study, six water samples were taken from points along the Maroon River in order to evaluate its quality. The concentrations of Cl−, SO42−, HCO3−, CO32−, NO3−, K+, Mg2+, Na+, and Ca2+, as well as ...


    By IWA Publishing

  • Heterogeneity of water quality in Huai River, China by using bio-monitoring data

    A new approach by combining bioindicators (BiI) and biotic indices (BIs) for evaluating water quality is presented in this paper. It is then applied to the Huai River Basin (HRB), China, which is well-known globally for its heavy anthropogenic influences. Results indicate that the spatial distribution of BI-indicated water quality has roughly the same pattern as that shown by BiI, but the ...


    By IWA Publishing

  • 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

  • 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

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