mercury reduction Articles

  • Legal Lookout: EPA Expands Mercury Reduction Program

    Untitled Document Mercury is a naturally occurring metal found in the Earth’s crust. At high doses, mercury is known to cause adverse human health effects. Over the past several ...


    By Bergeson & Campbell, P.C.

  • Mercury Removal

    The Adventus Mercury Removal AdvantageResponsible environmental experts in the academic, business and regulatory communities are increasingly more worried about the high levels of mercury contamination affecting many parts of the world. The international community is focusing their attention on this growing problem and EHC-M will clearly help, as it is perfectly suited for treating environments ...


  • UV LEDs making waves with clean water

    Oxford Instruments systems now facilitate water purification technology With World Earth Day last week I’ve decided to make this weeks blog about how new technology is being used to enhance people’s lives in a fundamental way. The UN recognises that clean drinking water is a global issue with over ...


    By Oxford Instruments plc

  • Mercury Control Demonstrations

    C1.1 | Halogens and Sulfur in Coals and their Influence on Co-benefit Mercury Capture Bernhard Vosteen | President, Vosteen Consulting Gmbh Not only the range of the coal mercury content itself, but also the range of the native halogen and sulfur contents in coal are of great influence on co-benefit mercury capture, wet and dry. The ...

  • Agreement on mercury finally here

    In Geneva 19 January 2013, due to successful interaction between science and policy making, governments within the UN agreed to a global, legally-binding treaty to prevent emissions and releases of mercury. Prof. Jozef Pacyna and his team at NILU - Norwegian Institute for Air Research, have played a major role in providing the UN policy makers with scientific justification for the treaty. 30 year ...

  • Increase in mercury in Pacific yellowfin tuna

    Mercury is a toxic trace metal that can accumulate to levels that threaten human and environmental health. Models and empirical data suggest that humans are responsible for a great deal of the mercury actively cycling in the environment at present. Thus, one might predict that the concentration of mercury in fish should have increased dramatically since the Industrial Revolution. Evidence in ...


    By John Wiley & Sons, Ltd.

  • Overview of mercury control in coal-fired power plants

    During combustion, the mercury (Hg) in coal is volatilized and converted to elemental mercury (Hg0) vapor in the high temperature regions of coal-fired boilers. As the flue gas is cooled, a series of complex reactions begin to convert Hg0 to ionic mercury (Hg2+) compounds and/or Hg compounds (Hgp) that are in a solid-phase at flue gas cleaning temperatures or Hg that is adsorbed onto the surface ...

  • Response of fish tissue mercury in a freshwater lake to local, regional, and global changes in mercury emissions

    A suite of mechanistic atmospheric and mercury cycling/bioaccumulation models is applied to simulate atmospheric mercury deposition and mercury concentrations in the water column and fish in a mercury‐impaired freshwater lake located in the northeastern United States that receives its mercury loading primarily through deposition. Two future‐year scenarios evaluate the long‐term response of ...


    By John Wiley & Sons, Ltd.

  • Appraising the Global Mercury Project: an adaptive management approach to combating mercury pollution in small-scale gold mining

    This paper appraises the initiatives of the Global Mercury Project (GMP); a project designed to minimise the impacts of mercury use in the artisanal and small-scale gold-mining (ASM) sector. The environmental and health impacts of mercury use at ASM sites have local, national and global implications that need to be reconciled with the benefits of poverty reduction and economic opportunity. The ...


    By Inderscience Publishers

  • Mercury Policy and Science in Northeastern North America: The Mercury Action Plan of the New England Governors and Eastern Canadian Premiers

    In June 1998 the New England Governors and Eastern Canadian Premiers (NEG--ECP) adopted a comprehensive regional Mercury Action Plan (MAP) with aggressive emission reduction and pollution prevention goals for the New England States, the Atlantic Provinces and Quebec. New Jersey and New York have also been active participants. The NEG--ECP MAP was motivated by, and based on, extensive data ...


    By Springer

  • Predictors of mercury spatial patterns in San Francisco Bay forage fish

    Pollution reduction efforts should be targeted towards those sources that result in the highest bioaccumulation. For mercury (Hg) in estuaries and other complex water bodies, carefully designed biosentinel monitoring programs can help identify predictors of bioaccumulation and inform management priorities for source reduction. We employed a probabilistic forage fish Hg survey with hypothesis ...


    By John Wiley & Sons, Ltd.

  • Sulphate reducing bacteria to precipitate mercury after electrokinetic soil remediation

    Combined treatment with electroremediation and sulphate reducing bacteria (SRB) was tested in laboratory and pilot scale. The contaminated soil came from a chlor-alkali factory and contained about 100 mg/kg Hg. Iodide/iodine complexing agent was used to mobilize mercury. Mercury iodide complexes were moved to the anode solution using an electric field. The anode solution was then mixed with ...

  • Using FIMS to determine mercury content in sewage sludge, sediment and soil samples

    Tim Flow Injection Mercury System (FIMS) is a dedicated system that integrates flow injection mercury cold vapor generation with a very sensitive detector. The exceptional system stability and the long path measurement cell provide instrumental detection limits as low as 5 ng/L using a sample volume of 5(H) jxL. The improved sensitivity of the FIMS permits sample dilution, therefore reducing the ...


    By PerkinElmer, Inc.

  • Air Rule for Cement Kilns Requires 92 Percent Cut in Mercury Emissions

    Portland cement kilns will be required to reduce emissions of mercury by 92 percent as part of an Environmental Protection Agency final rule announced Aug. 9 that imposes controls for several toxic pollutants. Although most of the emissions standards in the final rule are less stringent than what the agency had proposed in 2009, the cement industry said the cost to operate the required controls ...


    By Ohio Lumex Co., Inc.

  • Analysis of potential mercury policies: The impact of stream basin characteristics on susceptible populations

    Human exposure to mercury through fish consumption from local waterways is an ongoing concern to regulatory decision makers. Previously described population exposure and bioaccumulation models were combined in order to analyze the impact of potential policies on susceptible populations. The combined model simulated the problem of mercury exposure by examining the system from the point of ...


    By John Wiley & Sons, Ltd.

  • Determination of mercury with on-line addition of stannous chloride uUsing an axial ICP-OES

    Mercury is one of the most toxic heavy metals in the environment. It is therefore important to routinely monitor the Hg level in many types of samples. The US EPA approved methodology for the determination of Hg uses the cold vapor technique with stannous chloride as the reducing agent1. This methodology is applicable to Hg determinations in a range of waters (drinking, ground, surface, sea and ...


  • Optimal synthesis and nitrate and mercury removal ability of microemulsion-made iron nanoparticles

    Controlled preparation of iron nanoparticles through reduction of Fe3+ ions is investigated, using potassium borohydride solution in a microemulsion system. The effect of three low-cost cationic, anionic and non-ionic surfactants at various concentrations on the size of prepared iron nanoparticles is studied. Results show that the anionic surfactant, sodium dodecyl sulfate (SDS), significantly ...


    By Inderscience Publishers

  • Patterns of Mercury Deposition and Concentration in Northeastern North America (1996–2002)

    Data from 13 National Atmospheric Deposition Program Mercury Monitor Network (NADP/MDN) monitoring stations (1996–2002) and the Underhill (VT) event-based monitoring site (1993–2002) were evaluated for spatial and temporal trends. More precipitation and mercury deposition occurred in the southern and coastal MDN sites, except for the Underhill site, which received more mercury deposition than ...


    By Springer

  • Interactions between mercury and phytoplankton: Speciation, bioavailability and internal handling

    In the present review, key interactions between Hg and phytoplankton are described and discussed in order to highlight the role of phytoplankton in the biogeochemical cycle of Hg and to understand direct or indirect Hg effects on them. Phytoplankton are exposed to various Hg species in surface waters. By Hg uptake, phytoplankton affect the concentration, speciation and fate of mercury in ...


    By John Wiley & Sons, Ltd.

  • In Situ Chemical Reduction (ISCR) Technologies: Significance of Low Eh Reactions

    As used herein, ISCR describes the synergistic effect of stimulated biological oxygen consumption (via degradation of added organic carbon sources), direct chemical reduction with reduced metals, and the corresponding enhanced thermodynamic decomposition reactions that are realized at the lowered redox (Eh) conditions. These combined effects are therefore characteristic for technologies that ...


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