water quality management Articles
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Implementation of the European Water Framework Directive: procedures and a simple model for the identification of the most cost-effective measures in eutrophicated catchments
According to the European Water Framework Directive (WFD), cost-effectiveness analysis (CEA) should be used for measuring the cost and the environmental effectiveness of a measure in water quality management. The purpose of this paper is to argue that, beyond the calculation of the cost efficiency of the measures, additional information related to the cost and the environmental characteristics is ...
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Assessment of investment system for rural resources and water quality management: multi-objective optimisation of interregional sustainable development
This study intends to develop a decision making model that gives a solution of social problems such as widening economic gap between rural and urban regions and the corresponding environmental pollution. To revitalise regions that confront rural collapse, a framework of interregional management should be sought. A household investment system is taken up as a watershed-based management approach ...
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Relationship between land use and water quality in a small watershed in South Korea
Recent research and monitoring undertaken by various institutions have emphasized measurements of river-water quality. Based on the results, government agencies have set guidelines to improve river-water quality management. However, the relationship between water quality and land use/land cover (LULC) has not been examined closely in South Korea to date. This study investigated this relationship ...
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With a stormy future ahead, study offers new tools for managing runoff
These two words might make you sleepy: stormwater management. But they should make you scared. Or, if a new study can help shake things up, hopeful. Runoff carrying oil, salt, fertilizer, sediment and other pollutants is a top threat to lakes across the U.S., and several factors — including rising population, growing cities and changing climate — are loading the future’s dice ...
By Ensia
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Hydroclimatic variability and change in the Chesapeake Bay Watershed
The Chesapeake Bay (CB) Watershed is undergoing changes in climate, hydrology, and land use. The assessment of hydroclimatic impacts is important for both water quantity and quality management. This study evaluated the hydroclimatic changes using the Coupled Model Intercomparison Project 5 (CMIP5) data which provided statistically downscaled daily precipitation and temperature. An increase of ...
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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 ...
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Managing water quality impacts from drought on drinking water supplies
Droughts, which are difficult to predict, are a natural feature of the hydrology in most regions. Climate change, however, has the potential to increase the frequency and magnitude of future droughts. While the lack of water availability during droughts is widely publicized, there are equally severe water quality impacts that occur during and after droughts as well. Recent droughts have led to ...
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Feasibility of rural regeneration by cooperative watershed resources management in Japan
This study addresses multiple social issues in order to regenerate collapsing rural regions and realise environmentally friendly economic growth from a standpoint of watershed-based management. It is difficult for a single agricultural community to revitalise itself and therefore, such a community needs to seek cooperative management involving other regions and industrial sectors. In this case ...
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Forum: Urban storm water management: quantity and quality
A watershed can experience extra stresses due to the activities of urbanisation such as new land developments. This brief Forum paper raises two matters for discussion concerning best management prectices (BMPs) in this area: firstly, that it would be beneficial to have more continuous monitoring programs put in place to test and document the effectiveness of various BMPs in various regions; and ...
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3 Scientific Tools to Help You Better Understand Your Water Quality
There are many ways of testing and understanding your water quality with online scientific tools and models. One such resource is the National Water-Quality Assessment (NAWQA) project run by the U.S. Geological Survey (USGS). The project, which was founded in 1991 to develop reliable information about water sources to support decisions on water quality management and policy at every ...
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3 Scientific tools to help you better understand your water quality
There are many ways of testing and understanding your water quality with online scientific tools and models. One such resource is the National Water-Quality Assessment (NAWQA) project run by the U.S. Geological Survey (USGS). The project, which was founded in 1991 to develop reliable information about water sources to support decisions on water quality management and policy at every governmental ...
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Lag time in water quality response to best management practices: a review
Received for publication March 20, 2009. Nonpoint source (NPS) watershed projects often fail to meet expectations for water quality improvement because of lag time, the time elapsed between adoption of management changes and the detection of measurable improvement in water quality in the target water body. Even when management changes are well-designed and fully implemented, water quality ...
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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. ...
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Seasonal water quality vs. flow relationships in a small regulated stream
The relationship of a water quality constituent with respect to flow measured at a stream monitoring station can give valuable information about the watershed and in-stream processes about the constituent in question. Seasonal dependency patterns often reveal relationships which would be unnoticed if all data are treated together. The aim of this study is to examine water quality constituent ...
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Potential ecological impact of climate change on the water quality of an intensively managed agricultural watershed in Quebec, Canada
This study investigated the effects of climate change (CC) on water redistribution in a micro-watershed of a lowland agricultural area of the Bras d'Henri River in the temperate cold climate of Quebec, Canada. A Water Flow and Balance Simulation Model (WaSiM-ETH) was used to simulate the hydrology using current climatic conditions and land use characteristics, applying Richards’ ...
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Preliminary identification of watershed management strategies for the Houjing river in Taiwan
The Houjing River watershed is one of the three major river watersheds in the Kaohsiung City, Taiwan. Based on the recent water quality analysis, the Houjing River is heavily polluted. Both point and non-point source (NPS) pollutants are the major causes of the poor water quality in the Houjing River. Investigation results demonstrate that the main point pollution sources included municipal, ...
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Monitoring watershed health
Background Municipal water quality managers recognize the need for data that can be used to monitor and assess the impact of urbanization on the condition of natural watersheds. Storm events, in conjunction with the alteration of native landscape, building of roads and overuse of fertilizer, can contribute to excess nutrients, sediment and other pollutants in environmentally significant ...
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A New Strategy to Improve Water Quality—One Targeted Watershed at a Time
Water quality in the United States remains a major environmental and policy challenge. Water pollution is also a growing and serious problem across much of the world. Tackling water quality problems, particularly from diffuse sources such as agricultural farm fields, is a substantial challenge and much can be learned from the U.S. experience. More than 15,000 streams, rivers, and lakes in the ...
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LIMS Key to Quality Data Management in Water Industry
WEFTEC has just wrapped up its 2012 conference – the largest meeting of its kind in North America. The Water Environment Federations’ annual meeting has again delivered comprehensive water quality education and training to thousands of water quality professionals. The leading discussions at WEFTEC this year were centered around emerging research and innovations in the industry. ...
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Stormwater runoff plumes observed by SeaWiFS radiometer in the Southern California Bight
Abstract Understanding the factors that influence the incidence and dispersal patterns of freshwater runoff plumes in southern California is important for management of coastal water quality. Significant river discharge is associated with episodic winter rainstorms, leading to turbid pollutant and pathogen-laden stormwater plumes that are clearly visible nearshore in the Southern California ...
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