water nitrate concentration News

  • Nitrate concentrations of groundwater increasing in many areas of US

    Nitrate is the most common chemical contaminant in the world’s ground water, including in aquifers used for drinking-water supply. Nitrate in drinking water of the United States is regulated by the U.S. Environmental Protection Agency (USEPA) because of concerns related to infant health and possible cancer risks. Use of man-made synthetic fertilizers has steadily increased since World War II, ...

  • Des Moines struggling with nitrates in water

    Two rivers that supply water to 500,000 people in the Des Moines area show nitrate levels spiking to levels that make it unsafe for some to drink, a concentration experts haven't before seen in the fall that likely stems from especially wet weather in recent months. The utility that supplies Des Moines and most of its suburbs had workers blending river water with other sources to lower the ...


    By Associated Press

  • Drinking water in Gaza Strip contaminated with high levels of nitrate

    Palestinian and German scientists have recommended to the authorities in the Gaza Strip that they take immediate measures to combat excessive nitrate levels in the drinking water. 90 per cent of their water samples were found to contain nitrate concentrations that were between two and eight times higher than the limit recommended by the World Health Organization (WHO), say the researchers from ...

  • Aqwise developing advanced biological treatment system for drinking water nitrate contamination

    Aqwise, provider of advanced solutions for wastewater treatment, has signed a cooperation agreement with 'Mekorot', Israel's national water company, for field-testing an advanced biological treatment technology for Nitrate contamination in drinking water. The agreement was signed in the framework of WaTechTM, Mekorot’s entrepreneurship, investments and partnership center for water technologies. ...

  • Models simulate nitrate dynamics in Garonne, Southwest France

    The over-enrichment of fresh, transitional, and marine waters with nitrogen (N) can lead to problems associated with eutrophication, such as a change in species composition of aquatic plants and nuisance algal blooms. In this context, dynamic models of flow and water quality are required to aid the implementation of the Water Framework Directive and to understand the impacts of environmental ...

  • ASTM C799 - 12 Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Nuclear-Grade Uranyl Nitrate Solutions

    Uranyl nitrate solution is used as a feed material for conversion to the hexafluoride as well as for direct conversion to the oxide. In order to be suitable for this purpose, the material must meet certain criteria for uranium content, isotopic composition, acidity, radioactivity, and impurity content. These methods are designed to show whether a given material meets the specifications for these ...


    By ASTM International

  • Hatchery wash water treatment

    A WPL HiPAF Modular wastewater treatment system has been specified to treat the wash water for a global company’s large hatchery processing plant in Warwickshire. WPL were selected in a competitive bid based on the ...


    By WPL Ltd

  • Water pollution is decreasing but a lot remains to be done

    Water pollution caused by nitrates has decreased in Europe over the past two decades, but agricultural pressures are still putting water resources under strain. The latest Report on the implementation of the Nitrates Directive reveals that nitrates concentrations are slightly decreasing in both surface and groundwater and sustainable ...


    By Europa Press Room

  • Drinking water wells vulnerable to contamination

    New USGS groundwater studies explain what, when, and how contaminants may reach public-supply wells. All wells are not equally vulnerable to contamination because of differences in three factors: the general chemistry of the aquifer, groundwater age, and direct paths within aquifer systems that allow water and contaminants to reach a well. More than 100 million people in the United States ...

  • Funding for safe drinking water left unused

     The recent revelation that nearly half a billion dollars in federal funding for safe water has gone unspent by the State of California offers one more strong incentive for residents to install Final Barrier protection in their own homes, the Water Quality Association states. "While we rely on public agencies for initial treatment, the best way to ensure safe drinking water is by ...

  • Artificial water systems create unintended consequences

    Amidst the semi-arid stretches of Phoenix, a visitor might blink twice at the sight of a sailboat cutting across the horizon. Tempe Town Lake, on the northern edge of Arizona State University, is just one of a multitude of lakes, small ponds, canals and dams combining flood control, water delivery, recreational opportunities and aesthetics, and altering perception of water availability and ...


    By Arizona State University

  • Warwick, Lititz Receive EPA Award for Protecting Waters

    The U.S. Environmental Protection Agency today honored two Lancaster County, Pa. communities for protecting sources of drinking water used by more than 20,000 people. EPA Regional Administrator Shawn M. Garvin presented the agency’s 2012 regional Source Water Protection Award to the Warwick Township Municipal Authority and the Borough of Lititz at a ceremony at the Warwick Municipal Office. ...

  • Waters acidified by air pollution have recovered as predicted

    Back in 1999, a group of scientists predicted how changing air pollution levels would affect the acidity of lakes and rivers in Europe in 2010 using a computer model. A follow up study has now gathered actual measurements of these waters to see if the predictions came true. The observations show that most of the rivers and lakes did recover from acidification, as forecast by the model, and ...


    By European Commission

  • European Community involvement in water pollution control

    Greater efforts in reducing water pollution are needed to ensure that targets for water quality are met. A new study shows that community-based approaches can be useful in gaining support for water management schemes and driving positive change. Farmers may also benefit from improved communication within their local networks. Current European water management policies emphasise the importance of ...

  • EU puts into action plans for controlling nitrogen pollution in water

    European policy directives set ambitious targets for controlling nitrogen pollution. Effects of policy measures implemented in Denmark suggest that substantial improvements to water quality are possible through changes in farm management practices, without negative impacts on agricultural performance. Nitrogen pollution of water systems poses a significant problem in Western Europe. Despite ...

  • Chlorine monitoring in water with high Mn/Fe salts

    In 2012, Intellitect Water launched the new V2 Intellisonde (IV2) in-pipe water quality monitor, which offered two new advantages; retained calibration data and improved chlorine measurement. Since that time, IV2 sondes have been successfully installed around the world offering users easier access to water quality data. However, now that the IV2 sondes have been in operation for nearly a year, ...


    By Intellitect Water Ltd

  • Well water should be tested annually to reduce health risks to children

    Private well water should be tested yearly, and in some cases more often, according to new guidance offered by the American Academy of Pediatrics (AAP). Researchers at the National Institute of Environmental Health Sciences (NIEHS), part of the National Institutes of Health, took a lead role in working with the AAP to develop these recommendations and draft a new AAP policy statement about the ...

  • Innovyze products featured in the UK water projects 2012 publication

    Each year the UK Water Projects publication showcases a carefully selected group of case studies from the UK. Since 2002 over 700 technical case studies have been written by highly qualified engineers, detailing £30-35 billion of capital investment by the UK’s Water Companies, demonstrating the ways that the industry is creating one of the finest and safest water collection, ...


    By Innovyze

  • World Water-Tech North America Summit Approaching

    The second annual World Water-Tech North America Summit, the fifth event in the World Water-Tech series, gathers the key stakeholders from every part of the water value chain. Hosted by Rethink Events and WaterTAP Ontario, the event provides a dynamic meeting place for the growing international water-tech community. World Water-Tech North America will feature ...


    By GLOBE Foundation

  • Studies reveal why drinking water wells are vulnerable to contamination

    New USGS groundwater studies explain what, when, and how contaminants may reach public-supply wells. All wells are not equally vulnerable to contamination because of differences in three factors: the general chemistry of the aquifer, groundwater age, and direct paths within aquifer systems that allow water and contaminants to reach a well. More than 100 million people in the United States receive ...

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