water quality study News

  • Water quality improves after fertilizer ban - study

    In an effort to keep lakes and streams clean, municipalities around the country are banning or restricting the use of phosphorus-containing lawn fertilizers, which can kill fish and cause smelly algae blooms and other problems when the phosphorus washes out of the soil and into waterways. But do the ordinances really help reduce phosphorus pollution? That’s been an open question until now, says ...


    By GLOBE Foundation

  • Optical water quality assessment

    Scientists at the U.S. Geological Survey (USGS) have proven that measuring fluorescence could improve source water monitoring during a study of the McKenzie River in Oregon.  The study was designed to assess the amount, type and source of dissolved organic carbon that exists in all sources of drinking water. Dissolved organic carbon can react with chlorine during water treatment and form ...

  • Impacts of urbanisation on water quality

    Human interference is causing deterioration in the water quality at Ramsar site Deepor Beel in India, according to a new paper published in CIWEM"s Water and Environment Journal. The study investigated the impacts of rapid urbanisation on the water quality of the Deepor Beel, a natural, freshwater wetland in India that harbours a large number of migratory aquatic birds and provides livelihoods to ...

  • Military canteen water quality

    Results of a study of canteen water quality within two military units (infantry and armoured corps of the Israel Defense Forces) have been published in the Journal of Water and Health. The authors concluded that, in order to diminish the illness risk among combat soldiers, sanitary field conditions must be improved. The records of the IDF medical corps reveal an average annual number of 45,000 ...

  • Putting a price on water quality

    One way to clean-up water pollution is to award 'credits' to facilities that reduce their emissions. These credits can then be traded with other facilities to compensate for pollution outputs. This controls overall pollutions levels, while creating an economic incentive to reduce emissions. Research using models that simulate water quality has been used to establish the value of these credits and ...

  • Fracking water quality concerns

    The extraction of natural gas from deep shale formation requires the use of hydraulic fracturing or ‘fracking', which involves injecting water and chemicals to rupture deep shale. A predicted boom in Michigan has raised public concerns about water supply, use and contamination. A new natural gas exploration and production boom could be starting in Michigan in the wake of a surprisingly ...

  • Water Quality System

    Let me explain that our basic idea is how better to use the not many typologies (and parameters) of on-line sensors available on market to make low-cost sustainable intelligent monitoring. We all know that the total water quality is related to about fifty of quality measurement analytic parameters, but on-site and in on-line way, it is possible to detect only about ten electro-chemical or ISE ...

  • Water quality still deficient

    A new report by the World Health Organization and UNICEF states that the world is on track to surpass the Millennium Development Goal for drinking water access, but will fall short by one billion people for sanitation if current trends continue; access to a water source does not imply a quality water source. The Progress on ...

  • Everglades show improvement in water quality

    Researchers at the University of Florida Research and Education Centers and scientists at the South Florida Water Management District have published a report regarding the trends in water quality feeding into Everglades National Park. The report can be found in the September-October 2010 Journal of Environmental Quality, published by the American Society of Agronomy, the Crop Science Society of ...

  • Decision on Iowa’s water quality standards (IA)

    EPA has approved the Iowa Department of Natural Resources’ (IDNR) designated use changes for 64 water bodies and disapproved changes for 93 water bodies. Designated uses describe the achievable recreational activities and aquatic life uses in Iowa’s waters. EPA is finalizing action on the remaining 19 water bodies. The Clean Water Act (CWA) presumes that all waters are suitable for ...

  • Clam invasion threatens ecosystem balance and water quality

    Invasive alien species can have destructive effects on ecosystems. A recent study has shown that the invasive Asian clam (Corbicula fluminea) is reproducing at such a high rate in the River Minho Estuary, on the Portuguese/Spanish border, that it is not only threatening native species but also the quality of the river water. The functioning of freshwater ecosystems is easily unbalanced by human ...

  • Sediment pollution should be included in water quality assessments

    The quality of surface water is best assessed using the status of both the water and underlying sediment. A recent study concluded that water bodies risk being misclassified if sediment assessment is not included, which can lead to unnecessary recovery costs. Under the Water Framework Directive1 (WFD), Member States are required to achieve at least 'good water status' for surface water (inland, ...

  • US – Mexico celebrate joint Baja California air quality studies

    In Tijuana B. C., Mexico, the U.S. Environmental Protection Agency, the Mexican Ministry of Environment and Natural Resources (SEMARNAT), the Environmental Protection Agency of Baja California, the California Air Resources Board and the Border Environment Cooperation Commission will initiate the Baja California Air Monitoring Network coverage assessment study and the Tijuana-Rosarito Emissions ...

  • Environmental Scientist, Water Quality Modeler (nutrients, estuaries)

    Deadline: Review of applications will begin immediately. Applications are requested prior to August 15, 2016, but the position will remain open until filled. The San Francisco Estuary Institute (SFEI) seeks a water quality or hydrodynamic modeler to carry out modeling investigations related to transport, nutrient loads, transformations, and ecosystem response in San ...

  • Herbicide-tolerant crops can improve water quality

    The residual herbicides commonly used in the production of corn and soybean are frequently detected in rivers, streams, and reservoirs at concentrations that exceed drinking water standards in areas where these crops are extensively grown. When these bodies of water are used as sources of drinking water this contamination can lead to increased treatment costs or a need to seek alternative sources ...

  • Water Quality Improves in Long Island Sound

    For the second summer in a row, concentrations of dissolved oxygen in Long Island Sound are higher than the long-term average, indicating improved water quality and improved ecological conditions for organisms that live in the Sound. Aquatic animals rely on oxygen that is dissolved in water to survive. When dissolved oxygen levels decline, this can cause some animals to move away, weaken, or even ...

  • Improving water quality in Europe`s rivers

    The European Water Framework Directive (WFD) urges policy implementation managers to respond to poor ecological, chemical and quantitative status of the water system caused by negative pressures from different drivers. This issue discusses recent experiences with regard to different stages of river basin management strategy, to help us understand how we can safeguard water, an indispensible ...

  • Mississippi River an `Orphan` in Terms of Water Quality

    WASHINGTON, DC, October 18, 2007 (ENS) - The U.S. Environmental Protection Agency has failed to coordinate and oversee state water quality activities along the Mississippi River, leaving the nation's largest waterway an 'orphan,' the National Research Council says in a new report. Greater effort is needed to ensure that the river is monitored and evaluated as a single system, said the ...

  • Using vegetated filter strips to improve water quality

    Microbial contamination of surface water resources is a critical water quality issue, leading to many documented health and environmental concerns. Vegetated filter strips have become an important component of water quality improvement by reducing sediment and nutrient transport to surface water. Although this management practice is also beneficial for controlling manure-borne pathogen transport ...

  • New Water Quality Trading Guide Available

    A new EPA publication will help the regulated community design and implement voluntary water quality trading programs consistent with EPA's 2003 National Water Quality Trading Policy. This new guide will provide stakeholders with detailed guidance on the fundamental concepts of trading which can accelerate water quality improvement and reduce compliance costs. ' ...

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