Pollution accidents that occur in surface waters, especially in drinking water source areas, greatly threaten the urban water supply system. During water pollution source localization, there are complicated pollutant spreading conditions and pollutant concentrations vary in a wide range. This paper provides a scalable total solution, investigating a distributed localization method in wireless s...

Optimal allocation of water resources requires an agreed basis for discussing what is an "acceptable" water quality. Developments in the establishment and interpretation of water quality specifications are discussed. It is argued that percentile water quality standards and sensible definitions of water quality failure are often inconsistent. Rigid water quality specifications cannot account for...

Drainage from mining sites rich in sulfur bearing rocks is known as acid mine drainage (AMD). Acid mine drainage water is a serious environmental pollutant that has its ill effects on plants, animals and microflora of a region. Mine water drainage mainly results due to anthropogenic activities like mining that leave the sulfur bearing rocks exposed. This drainage water poses as a potent soil, s...

Arable land use is generally assumed to be the largest contributor to agricultural diffuse pollution. This study adds to the growing evidence that conventional temperate intensively managed lowland grasslands contribute significantly to soil erosion and diffuse pollution rates. This is the first grassland study to monitor hydrological characteristics and multiple pollutant fluxes (suspended sed...

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 monitoring efforts may not show definitive res...

Particle methods are an important technique for simulating transport phenomena such as the transport of pollutants in coastal waters. Particle methods can quite accurately predict the pollutant transport in cases of steep concentration gradients after the pollutant has just entered into the water, whereas conventional numerical methods such as finite difference and finite volume methods may hav...

Currently rainwater harvesting is more and more popular in the world. The aim is reduce drinking water consumption in developed countries or create a point of access for water in developing countries, for drinking water or for plants irrigation. For developed countries the problems of rainwater re-use can be linked with micro pollutants contamination. Hence we underline a possible source of bio...

water quality prediction is a valuable tool for pollutant control in aquatic environments. a river system is selected and one-dimensional flow is assumed for the simulation of pollutant transport in this paper. advective and diffusive terms of transport equation are considered separately. different functions of advective transport are proposed and applied for a specified velocity on the discret...

Jacob and Lopez (2009) presents modeling results to support the conclusion that the per capita water quality impacts of urban development decrease significantly with population density. If true, this conclusion would have important implications for land use planning throughout the world. However, as discussed below, the modeling is based on questionable assumptions that likely bias the conclusi...