nitrous oxide monitoring Articles

  • Nitrogen and Nitrous Oxide – the differences you need to know

    We’ve previously posted blogs about the confusion between carbon dioxide (CO2) and carbon monoxide (CO) as these gases are regularly mixed up. However, ...


    By Analox Sensor Technology

  • Nitrous oxide emissions from a waterbody in the Nenjiang basin, China

    Using static, closed chambers and gas chromatography techniques, nitrous oxide (N2O) emissions have been monitored for 1 year (2009–2010) on an inland running waterbody downstream of the Nenjiang basin, China. During the freezing period, holes were dug in the ice in order to obtain nitrous oxide samples. Here, we have focused on water-air gas exchange and factors which might influence ...


    By IWA Publishing

  • Monitoring Databases

    EHS Data have been providing software and services to our clients to help them manage and report on their Environmental, Health and Safety Data for more than 14 years. This paper deals with the global evolution in environmental concerns and how this changes the data management obligations and requirements of companies. ...


    By EHS Data Ltd.

  • Gas Detection and Monitoring Systems

    In greenhouse applications, the accurate measurement of a number of environmental parameters such as carbon dioxide concentration, temperature, light intensity, water, humidity, pH and nutrient levels using sophisticated sensors is used to create a controlled environment for optimising plant growth rates while minimising energy usage. Carbon dioxide concentration is also one of the best ...


    By Edinburgh Instruments Ltd

  • Wastewater Treatment Plant Monitors Greenhouse Gas Emissions

    Globally, little attention is paid to gaseous emissions from wastewater treatment processes. This contrasts greatly with the regulatory monitoring that is applied to the quality of water emissions from such facilities. However, in Helsinki, Finland, a large municipal wastewater treatment facility continuously monitors its emissions of greenhouse gases (GHGs) to help in the city’s efforts to ...


    By Gasmet Technologies Oy

  • Monitoring greenhouse gases from biofuel crops

    Global issues such as climate change and energy security have driven rapid growth in renewable energy production - wind, solar, tidal, geothermal, hydro, biofuels etc. However, logically, each of these methods should deliver a net benefit in terms of greenhouse gas (GHG) reduction, so researchers in the United States have employed portable FTIR analysers to study the GHG emissions of biomass ...


    By Gasmet Technologies Oy

  • Gas Monitoring for Ventilation Control and Energy Management

    The growing demand for underground and enclosed parking and maintenance garages (resulting from limitations on land availability) has increased the awareness and need for proper ventilation and control systems. In addition, increased health and safety programs have only added to the concerns of toxic and combustible gases in confined or enclosed spaces. Historically, ventilation and make-up air ...


    By Arjay Engineering Ltd.

  • Develop a `real-time` air emissions monitoring strategy for your facility

    To improve air quality, states and localities are requiring more intense 24/7 monitoring of listed air pollutants from hydrocarbon processing facilities. Affected facilities must develop reliable and accurate environmental data management systems for reporting purposes. In this case history, the BP Texas City site (a refinery and chemicals plant) successfully implemented a real-time environmental ...


    By Wood Group Mustang, Inc.

  • Case study - New N2O monitor for occupational health and safety

    The new Geotech G200 range of N2O analysers measures N2O at 0-1000ppm or at 0-100 percent with accuracy, speed and ease-of-use.  With options for CO2, O2 and CO, the G200 range can assist anaesthetists and ...


    By Geotech

  • Study of vehicular emissions with reference to Pakistan's National Environmental Quality Standards: case study of District Swat, North of Pakistan

    This study was conducted during 2011–2012 with the objective to assess the ambient air quality in the surroundings of a newly constructed road in relation to Pakistan's Environmental Quality Standard (Pak–NEQS). The area was monitored twice, before and during the construction, to determine levels of sulphur dioxide, nitrous oxide, carbon monoxide, and PM10 (particulate matter). A ...


    By Inderscience Publishers

  • Fenton degradation of Cartap hydrochloride: identification of the main intermediates and the degradation pathway

    The advanced oxidation of Cartap hydrochloride (Cartap) promoted by the Fenton system in an aqueous medium was investigated. Based on total organic carbon, chemical oxygen demand and high-performance liquid chromatography, the oxidation of Cartap is quite efficient by the Fenton system. Its long chain is easily destroyed, but the reaction does not proceed to complete mineralization. Ion ...


    By IWA Publishing

  • Fenton degradation of Cartap hydrochloride: identification of the main intermediates and the degradation pathway

    The advanced oxidation of Cartap hydrochloride (Cartap) promoted by the Fenton system in an aqueous medium was investigated. Based on total organic carbon, chemical oxygen demand and high-performance liquid chromatography, the oxidation of Cartap is quite efficient by the Fenton system. Its long chain is easily destroyed, but the reaction does not proceed to complete mineralization. Ion ...


    By IWA Publishing

  • The state of greenhouse gases in the atmosphere using global observations through 2006

    The latest analysis of data from the WMO-GAW Global Greenhouse Gas Monitoring Network shows that the globally averaged mixing ratios of carbon dioxide (CO2) and nitrous oxide (N2O) have reached new highs in 2006 with CO2 at 381.2 ppm and N2O at 320.1 ppb. Atmospheric growth rates in 2006 of these gases are consistent with recent years. The mixing ratio of methane (CH4 ) remains almost unchanged ...

  • Characterization of Fugitive Emissions of Greenhouse Gases from a Wastewater Treatment Plant Using The Radial Plume Mapping Technique

    An existing anaerobic wastewater treatment plant (WWTP) near Bucaramanga, Colombia is being upgraded to include nitrification/denitrification and improvements in capture and recovery of methane. The existing plant utilizes upflow anaerobic sludge blanket (UASB) reactors followed by facultative lagoons. For this project, the UASB reactors will be retrofit to maximize the collection of biogas, and ...

  • WMO Greenhouse gas bulletin

    The latest analysis of data from the WMO-GAW Global Greenhouse Gas Monitoring Network, a comprehensive network of the Global Climate Observing System (GCOS), shows that the globally averaged mixing ratios of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) have reached new highs in 2007 with CO2 at 383.1 ppm, CH4 at 1789 ppb and N2O at 320.9 ppb. These values are higher than those in ...

  • Air pollution forecast in Portugal: a demand from the new air quality framework directive

    This work aims at developing and validating a numerical air quality operational forecasting system that will be applied over Portugal. The CHIMERE model was chosen for the chemistry-transport simulation using the meteorological parameters supplied by the MM5 mesoscale meteorological model, forced by the AVN/NCEP global forecasts. An experiment of 48-hour real-time forecast simulations was ...


    By Inderscience Publishers

  • Manmade chemicals a major cause of global climate change

    Although the Earth?s climate evolves naturally over time, the major cause of climate change that is harmful and lead to unfavorable weather, water patterns, growth patterns are due to the release of manmade chemicals. While these chemicals are necessary to produce certain items, operate essential refrigeration equipment, or make our daily lives easier, they are a danger to the environment and the ...


    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

  • Environmental Risk Management Solutions Get Executive Attention

    Interest in corporate environmental, health and safety (EHS) issues is at an all time high across North America and in Europe. Pressure by shareholders and concerned citizens has increased in response to the significant environmental risks now facing corporations, while companies must also respond to new regulations and standards that increasingly have real “teeth.” And nowhere are these issues ...


    By VisionMonitor Software, LLC

  • Experimental study of the impacts of external disturbances on N2O emission from water to air

    To obtain a comprehensive understanding of nitrous oxide (N2O) emission from water to air, the impacts of external disturbances including wind, stirring and aeration on N2O emissions were investigated by continuously monitoring N2O concentration variations in water. The volumetric mass transfer coefficient of N2O from water to air ...


    By IWA Publishing

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