water quality assessment Articles

  • Micro Pulse LiDAR: A Critical Tool for Emissions Source Detection

    Micro Pulse LiDAR remote sensing data are used to calculate a highly accurate Planetary Boundary Layer (PBL) height to improve plume models that help assess emissions sources. ...

  • Water Quality Monitoring and Assessment

    The book attempts to covers the main fields of water quality issues presenting case studies in various countries concerning the physicochemical characteristics of surface and groundwaters and possible pollution sources as well as methods and tools for the evaluation of water quality status. This book is divided into two sections: Statistical Analysis of Water Quality Data;Water Quality Monitoring ...


    By IWA Publishing

  • Transitioning sediment quality assessment into regulations: Challenges and solutions in implementing California's sediment quality objectives

    Development and promulgation of sediment quality criteria represents a substantial challenge for water quality agencies. Unlike water quality programs that rely on individual chemical thresholds to assess water quality, the complex processes affecting contaminant bioavailability in sediments preclude the use of contaminant concentrations to independently assess impacts or identify cause. ...


    By John Wiley & Sons, Ltd.

  • Recycled Water Quality

    Matching recycled water quality to beneficial uses requires an understanding of health and environmental requirements. Measures to achieve appropriate recycled water quality are determined firstly by treatment. The degree of treatment depends in part on the source and the hydraulic and biochemical characters of the wastewater. Overall recycled water outcomes may also be controlled ...


    By IWA Publishing

  • Research on raw water quality assessment oriented to drinking water treatment based on the SVM model

    Raw water quality variation has a great effect on drinking water treatment. To improve the adaptivity of drinking water treatment and stabilize the quality of treated water, a raw water quality assessment method, which is based upon the support vector machine (SVM), is developed in this study. Compared to existing raw water quality assessment methods, the assessment method studied herein is ...


    By IWA Publishing

  • Assessment of groundwater quality in sunamganj of Bangladesh

    Huge quantities of groundwater, particularly from the shallow aquifers, are used for irrigation in Bangladesh and in the absence of adequate surface water in the dry season, irrigation becomes heavily dependent on groundwater. The water quality management is essential for long-term irrigation system as it persuades the soil properties. In irrigation water evaluation, emphasis is given on chemical ...


    By University of Tehran

  • 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

  • Towards a Service Quality Model for Water Utilities

    Regulation of water utilities is often achieved through “yard-stick competition”, where the service quality of monopolistic service providers is compared with peer organisations in the same jurisdiction (Braadbaart, 2007; Lin & Berg, 2008). Regulatory models for water utilities focus on measuring business performance through a series of indicators (Braadbaart, 2007; Byatt, 2013; ...


    By IWA Publishing

  • European bathing water quality in 2014

    Good bathing water quality is critically important for Europeans. It plays a large role in helping people to plan holidays and leisure activities. It is therefore also of great importance to Europe's tourism industry, as clean and safe water is a major factor in continuing to attract visitors from all over the world. To allow citizens to make an informed choice of beach, the European Union (EU) ...

  • Application of an artificial neural network in wastewater quality monitoring: prediction of water quality index

    Water bodies have become more and more polluted owing to discharge of industrial waste. Therefore, it has been the chief concern of scientists, engineers and ecologists to decrease the water pollution level around the globe to maintain living viability and ecological balance. In this paper, the seasonal and positional variation of wastewater parameters in a natural flowing stream has been ...


    By Inderscience Publishers

  • EPA Revises Water Quality Criteria

    Tens of thousands of members of the regulated community from industrial facilities with air emissions and wastewater discharges to municipal wastewater treatment plants, to hazardous waste site managers may be affected by changes to the WQC. US EPA Water Quality Criteria (WQC) which attempt to protect human health and the environment associated with the US waters, serve as the basis for most ...


    By AECOM

  • Assessing water quality in Europe using stratification techniques

    This report aims to provide information in relation to the trends of major nutrients in rivers. It focuses both on the trends considered as indicators of water quality status and on the possible differences in trends in relation to main driving forces (agriculture, urbanisation). Referring to the driving forces — pressures — state — impact — response (DPSIR)assessment framework of the EEA, the ...

  • An integrated approach for urban water quality assessment

    This paper introduces an integrated approach for the assessment of receiving water quality and the relative contribution of the urban drainage system to perceived receiving water quality problems. The approach combines mass balances with relatively simple receiving water impact models. The research project has learned that the urban drainage system is only one of the determining factors with ...


    By IWA Publishing

  • Using watershed function as the leading indicator for water quality

    Diffuse nonpoint source (NPS) pollutants, such as sediment, nitrogen, phosphorus, and pathogens, have become the primary cause of water quality impairments in the United States of America. Resource management agencies in the USA are expanding the use of tools for the assessment of ecosystem function in water quality programs to control NPS pollution to meet US Clean Water Act objectives. ...


    By IWA Publishing

  • Effect-based trigger values for in vitro and in vivo bioassays performed on surface water extracts supporting the environmental quality standards (EQS) of the European Water Framework Directive

    Abstract Effect-based methods including cell-based bioassays, reporter gene assays and whole-organism assays have been applied for decades in water quality monitoring and testing of enriched solid-phase extracts. There is no common EU-wide agreement on what level of bioassay response in water extracts is acceptable. At present, bioassay results are only benchmarked against each other but not ...

  • Accounting for service quality to customers in the efficiency of water companies: evidence from England and Wales

    This paper investigates the role of service quality to customers in the efficiency assessment of water companies in England and Wales. To achieve this, data envelopment analysis techniques are employed to compute the technical efficiency of the water companies following two approaches: (i) traditional assessment based on quantity variables (without the inclusion of service quality variables) ...


    By IWA Publishing

  • European bathing water quality in 2010

    Europeans care about water quality and rank bathing water quality as a priority when judging their local environment. Knowing that they have clean and safe water to swim or play in is an important factor in their choice of a holiday or weekend destination. For the tourism industry, clean and safe water is also a major factor in attracting visitors to an area. To allow Europeans to make an ...

  • Simulation adequacy assessment of water quality of Rosetta Branch

    Quality status of fresh waterways in Egypt, especially those that receive agricultural drainage water such as Rosetta Branch (RB), is critical for most of its water uses. However, the country depends on this marginal quality water to fill the gap between demand and supply. Therefore, the need for effective/economic water management tools turn into an obligation. Mathematical models can be ...


    By IWA Publishing

  • The challenge of documenting water quality benefits of conservation practices: a review of USDA-ARS's conservation effects assessment project watershed studies

    The Conservation Effects Assessment Project was established to quantify water quality benefits of conservation practices supported by the U.S. Department of Agriculture (USDA). In 2004, watershed assessment studies were begun in fourteen agricultural watersheds with varying cropping systems, landscapes, climate, and water quality concerns. This paper reviews USDA Agricultural Research Service ...


    By IWA Publishing

  • A water quality index for recreation in Brazilian freshwaters

    Use of water for leisure activities has long been prevalent in human societies, especially where the climate is favorable. Water resources with appealing conditions for primary contact recreational activities include rivers, waterfall plunge pools, dams and lakes, as well as sea coasts. Recreational use has specific demands for water quality, particularly as regards risks to human health such ...


    By IWA Publishing

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