sf6 Articles

  • Reduction of the Emissions of HFC`s, PFC`s and SF6 in the European Union

     The report provides a first estimate of the development of the EU-wide use and emissions in 2005 and 2010 of the three industrial halogenated gases included in the Kyoto protocol, namely hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulphur hexafluoride (SF6). It also makes a preliminary assessment of the options and costs of controlling these three gases, as well as of the ...

  • Economic Evaluation of Emission Reductions of HFCs, PFCs and SF6 in Europe

     Introduction The Kyoto Protocol under the United Nations Framework Convention on Climate Change (UNFCCC) regulates emissions of carbon dioxide, methane, nitrous oxide, hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulphur hexafluoride. Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFC) are chemically related anthropogenic greenhouse gases. Because of their depleting ...

  • Traceflux: a small-scale tracer experiment at a forested site

    Results from four successful tracer experiments carried out in a dense forest canopy are presented. For each experiment, sulphur hexafluoride SF6 was released from a point source in trunk space and air samples were collected at 19 horizontally distributed locations in the canopy. Meteorological measurements include fast-response turbulence data recorded at several locations in and above the ...


    By Inderscience Publishers

  • Greenhouse Gas Tailoring Rule - The Regulatory Permitting Climate Forecast is Getting Hot

    The EPA is moving forward in regulating Greenhouse Gas emissions and has published the reporting rule and its final rule to control greenhouse gas (GHG) emissions from stationary sources. If you are a major source under the prevention of significant deterioration program or a major source under Title V you will be subject to this rule. ...

  • Application of different dispersion models to a site near the Belgian-Dutch border

    Many countries in Europe use dispersion models for regulatory purposes that differ in many aspects. In practical situations near borders between countries this may lead to the calculation of very different impacts of the same source configuration. We applied three models to the same source in the Dutch province of Zeeland Flanders, near the Belgian-Dutch border. The Belgian model IFDM and the ...


    By Inderscience Publishers

  • TransCom N2O model inter-comparison – Part 1: Assessing the influence of transport and surface fluxes on tropospheric N2O variability

    We present a comparison of chemistry-transport models (TransCom-N2O) to examine the importance of atmospheric transport and surface fluxes on the variability of N2O mixing ratios in the troposphere. Six different models and two model variants participated in the inter-comparison and simulations were made for the period 2006 to 2009. In addition to N2O, simulations of CFC-12 and SF6 were made by a ...

  • Assessing the extent of induced leakage to an urban aquifer using environmental tracers: an example from Bishkek, capital of Kyrgyzstan, Central Asia

    A groundwater residence time study of the deep fluvioglacial aquifer supplying Bishkek, capital of Kyrgyzstan, has found evidence of deep infiltration of recent recharge both in the main periurban wellfield and below the city. Commonly-employed hydrochemical markers detected urban influence in the city-centre to depths of 65–100 m, but gave no indication of the important role of induced ...


    By Springer

  • Methane emissions and airflow patterns along longwall faces and through bleeder ventilation systems

    The National Institute for Occupational Safety and Health (NIOSH) conducted an investigation of longwall face and bleeder ventilation systems using tracer gas experiments and computer network ventilation. The condition of gateroad entries, along with the caved materials permeability and porosity changes as the longwall face advances, determine the resistance of the airflow pathways within the ...


    By Inderscience Publishers

  • GHG quantification reporting and lifecycle assessment: does one size fit all?

    Corporate and government entities have been developing and reporting greenhouse gas (GHG) emission inventories, some for well over a decade. The basis for developing these inventories has evolved from voluntary mechanisms (e.g., sustainability reports; registries like the DOE 1605(b) or The Climate Registry) to regulatory requirements (e.g., EU Emissions Trading Scheme, US EPA Mandatory Reporting ...


    By Trinity Consultants

  • Model Inter-Comparison on Transport and Chemistry

    A comprehensive inter-comparison of 5 atmospheric chemistry transport models (TM5, TM4, TM3, IMAGES, and LMDZ) has been performed. The main objective was to analyze differences in model transport, in particular vertical mixing (boundary layer and convective transport), synoptic variations, and large scale global circulation (including inter-hemispheric exchange and stratospheric tropospheric ...


  • Monitoring NH3, N2O, CO2 and CH4 emissions

    In France, as in other countries, there is a need to improve knowledge of greenhouse gas and ammonia emissions from livestock production with various management options. The aim of this study was to quantify the NH3, N2O, CO2 and CH4 emissions from two pig solid manure heaps, turned and not turned, in order to examine the effect of turning on gaseous emissions and to obtain additional information ...


    By BioCycle Magazine

  • EPA proposes new greenhouse gas emission standard under the Clean Air Act

    The Environmental Protection Agency (EPA) has recently proposed a new GHG emissions program designed to further regulate the amount of greenhouse gas produced in the US. The proposed Prevention of Significant Deterioration and Title V Greenhouse Gas Tailoring Rule would require large facilities to obtain operating permits for their greenhouse gas (GHG) emissions. Large facilities are defined as ...


    By Intelex Technologies Inc.

  • EPA moves closer to GHG control

    EPA has put itself on the path toward greenhouse gas regulation, but in Congress, the courts, and the international community, the debate rages on. On Dec. 7, 2009, EPA moved one step closer to imposing the first ever set of enforceable greenhouse gas (GHG) standards on tailpipe emissions from vehicles, and a requirement that large power plants and industrial emitters install best available ...


    By Bergeson & Campbell, P.C.

  • Climate Change Initiatives are Heating Up in the United States

    If you thought the reporting of greenhouse gas (GHG) emissions would not affect you, think again! The climate change issue is heating up in the United States even though we are not a party to the Kyoto Protocol. With the number of extreme weather events tripling in the past 50 years, the global average level of the sea increasing, and the amount of snow cover declining,1 U.S. citizens want to ...

  • Mandatory Carbon Reporting for London Stock Exchange Listed Companies

    In June 2012 The UK’s Deputy Prime Minister, Nick Clegg announced a new mandatory carbon reporting requirement for all main board companies on the London Stock Exchange (list of 1,370 companies here). This follows a public consultation last year where the majority supported making GHG ...


    By Accuvio

  • EPA`s mandatory GHG emissions reporting commences Jan 1st in US

    The Envinronmental Protection Agency (EPA) has announced its new mandatory GHG reporting program will commence on January 1st 2010 with reports being due in 2011. The new mandatory GHG rule from the EPA brings some changes from the originally proposed rule. Some of the changes are outlined below. INDUSTRIES INCLUDEDExcluded from reporting are the following industries: Electronics manufacturing ...


    By Intelex Technologies Inc.

  • Federal GHG reporting rule proposed

    On March 10, 2009, EPA proposed federal greenhouse gas (GHG) reporting requirements as authorized by the FY08 Omnibus Appropriations Act (H.R. 2794; Public Law 110-161), signed Dec. 26, 2007. EPA developed the rule to collect comprehensive GHG emissions data that can be used to inform EPA and government agencies for future policy decisions. EPA’s rulemaking approach used screening criteria ...


    By Trinity Consultants

  • EPA plans to make greenhouse gas (GHG) emissions reporting mandatory

    Mandatory carbon (CO2) emissions reporting is more important than ever as the United States works with facilities to reduce substances known to adversely affect air quality, the climate, and lead to global warming. Most of the known matter that is destroying the earth’s ozone layer and contributing to global warming is derived from manmade compounds and chemicals with high global warming ...


    By Verisae

  • California Global Warming Solutions Act (AB 32): Early actions for refrigerant gas management

    How to stay ahead and address the early action requirements for Stationary Equipment Refrigerant Management to be included in updates to AB 32. The California Global Warming Solutions Act (AB 32), first passed in 2006 with additional early actions taking effect in 2010, is a broad and comprehensive directive with the goal of reducing greenhouse gasses (GHGs) by approximately 25% by the year ...


    By Verisae

  • Legal lookout: EPA issues final “tailoring” GHG permitting rule

    EPA estimates that Title V permits would be required for over six million sources not now subject to the program. On June 3, 2010, EPA issued a final rule addressing greenhouse gas (GHG) emissions from stationary sources under the Clean Air Act (CAA). This controversial rule set thresholds for GHG emissions that define when permits under the New Source Review Prevention of Significant ...


    By Bergeson & Campbell, P.C.

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