nitrate trace News

  • 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 ...

  • 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

  • Bench-Scale Study Provides Insight Into PCE and TCE Aerobic Cometabolism

    CL Solutions completed a bench-scale test of aerobic cometabolism of PCE and TCE in contaminated ground water.  The purpose of the pilot study was to confirm applicability of aerobic cometabolism to a hazardous waste release site.  Additional testing was undertaken to provide insight into the aerobic cometabolic pathway.  The pilot study included treated and untreated ...


    By CL Solutions, LLC

  • Groundwater pollution in Europe: an overview

    An overview of groundwater contaminants in Europe is provided by a recent study, which calls for more integrated monitoring using a range of indicators. Groundwater contamination presents serious health and environmental concerns. A number of Directives, including the Water Framework, Groundwater, Nitrates, Industrial Emissions and Landfill Directives, together aim to protect groundwater from ...

  • Study finds contaminants in California public-water supplies

    Nearly one-fifth of the raw groundwater used for public drinking water systems in California contains excessive levels of potentially toxic contaminants, according to a decade-long U.S. Geological Survey study that provides one of the first comprehensive looks at the health of California's public water supply and groundwater. One of the surprises in the study of 11,000 public supply wells ...


    By Associated Press

  • California Air Resources Board Purchases Additional N2O/CO Analyzers from Los Gatos Research

    Los Gatos Research (LGR), the leader in precision trace gas analyzers, has received an order for five more of the company's unique N2O/CO (nitrous oxide/carbon monoxide) trace gas analyzers from the California Air Resources Board (CARB). These particular instruments (part of LGR's acclaimed Enhanced Performance series) deliver extremely stringent performance specifications, including better than ...

  • Webinar - Environmental Isotopes in Groundwater Studies: Nitrogen Species and Reactions in Contaminated Groundwater

    Webinar overview Gain insight on the integration of nitrogen geochemistry and isotopes may be used for tracing the origin of nitrogen species and their transformations in the subsurface in this Webinar, which is a part of the Environmental Isotopes in Groundwater Studies Webinar series*. Nitrogen represents one of the most ubiquitous and challenging contaminants in ...

  • APTwater and Rochem Merge Their Companies

    The combination of APTwater, Inc. and Rochem AG, unites two of the water industry's most advanced water technology companies to deliver reliable, clean water from some of the most challenging resources in the industry. Rochem, based in Europe, deploys patented membrane modules into integrated treatment ...


    By APTwater LLC

  • ASTM C968 - 12 Standard Test Methods for Analysis of Sintered Gadolinium Oxide-Uranium Dioxide Pellets

    The test methods in this method are designed to show whether a given material is in accordance with Specification C922. 1. Scope 1.1 These test methods cover procedures for the analysis of sintered gadolinium oxide-uranium dioxide pellets to determine compliance with specifications. 1.2 The analytical procedures appear in the following order ...


    By ASTM International

  • `Chemical fingerprints` could reveal source of mercury pollution

    Scientists have described a new method for tracking down the source of mercury pollution from burning coal. By analysing the chemistry of the pollution, it is possible to identify which region the coal was originally from. Mercury pollution in the atmosphere comes mainly from coal-fired power stations and chemical plants. Mercury is naturally present in coal and is emitted when it is burned as ...

  • WEF, USGS will sponsor a congressional briefing on the health impacts of private drinking water wells

    The Water Environment Federation (WEF), in cooperation with the U.S. Geological Survey’s (USGS) National Water Quality Assessment Program, will sponsor a congressional briefing to discuss new findings about the quality of our nation’s private drinking water wells. “The Quality of Our Nation’s Private Drinking Water Wells: Are Current Contaminant Levels Above Public Health ...

  • Sherwood makes the best chloride analyser even better

    Sherwood Scientific announces a significant update of the much admired Model 926 Chloride Analyser. Featuring a redesigned PCB, sealed face-plate and a new backlit LCD display, this latest version retains the excellent accuracy and reliability which have made Sherwood’s Model 926 the instrument of choice in ...


    By Sherwood Scientific Ltd

  • Hand-held FTIR analyzers — a new capability for at-site measurements of rock and minerals — use of FTIR for elucidating rock and mineral composition

    A2 Technologies' Exoscan hand-held FTIR (Figure 1) is increasingly being used by researchers involved in the geosciences for analysis of rocks, minerals, and soil for a broad variety of applications. The reason for this acceptance is that the Exoscan system, equipped with diffuse reflectance sampling interface, can be used equally effectively in the laboratory or field locales to provide ...


  • Contaminants in US groundwater

    According to a new study by the USGS, more than 20% of untreated water samples from 932 public wells across the US contained at least one contaminant at levels of potential health concern. About one-third of the US population receive their drinking water from such a system. The USGS study (Contaminants in Groundwater used for ...


  • It’s show time!

    With several new attractions, WWEM 2014, the international Water, Wastewater and Environmental Monitoring conference and exhibition, will be bigger and busier than ever before. The five previous WWEM events, which stretch back to 2005, have included conferences addressing testing and monitoring themes within the Process and Laboratory sectors, in addition to an international exhibition and scores ...


    By The OTT Hydromet Group

  • 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

  • WWEM 2014 – better, bigger, busier

    Running over 2 days in early November, WWEM 2014 was an outstanding success, with sustained growth in every event since the first WWEM in 2005. “In comparison with the last WWEM in 2012, visitor numbers were up by 15% and even though the size of the exhibition was increased by 12% we were still unable to accommodate several potential exhibitors,” reports organiser Marcus Pattison. ...


    By The OTT Hydromet Group

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