nox protocol Articles

  • Fast, simultaneous and continuous monitoring of NOx and NH3 in DeNOx applications

    In DeNOx systems using urea injection with ammonia (NH3) as a reducing agent, the flow rate and control of NH3 must be continuously adjusted and controlled to prevent excess NH3 emissions (slip), to reduce environmental impact and cost of reagents. To optimize this process, it is essential to use an emissions analysis system for simultaneous and continuous monitoring of NOx and NH3. For preparing ...


    By Environnement S.A

  • `Sensitivity of Condensable Particulate Matter Speciation on Predicted Visibility Impacts – Case Study,` presented at the NCASI West Coast Conference, September 2005

    Introduction This paper evaluates a realistic case study for an existing major emission source that is required to evaluate visibility impacts at a nearby federally-protected Class I area. The fictitious source is a 1960's era coal-fired electric generating unit (EGU) characterized as a pulverized coal-fired, dry bottom, wall-fired boiler equipped with PM and NOx controls (i.e., ...


    By Trinity Consultants

  • Cost Containment: Beyond the Obvious

    Utilities today can implement a number of different initiatives to help them contain costs and maximize profits. Some of those, such as switching to a more efficient fuel source if possible, can produce obvious results that are relatively easy to calculate. But there are other initiatives, though less obvious, that can produce significant results at the bottom line. One such cost-containment ...

  • Case study - Ambient air monitoring by PID detection - airTOXIC

    First Case THE PROBLEM: How to monitor air quality from 1 spot in 12 different towns ? THE SOLUTION The airToxic PID with the communication protocol MODBUS allows to transfer the results of the 12 instruments to a central room RESULTS airToxic PID allows to have an improved ...


    By Chromatotec Group

  • Ozone precursor analysis using a thermal desorption-GC System

    In the United States, the Clean Air Act of 1970 gave the U.S. Environmental Protection Agency (EPA) responsibility for maintaining clean air for health and welfare. Six parameters are measured routinely in ambient air: SOx, NOx, PM10 (particulate matter less than 10 microns), Pb, CO and ozone. In the 1990 Clean Air Act Amendments, Title 1 expanded the measurements in air to include volatile ...


    By PerkinElmer, Inc.

  • Annual European Community LRTAP Convention Emission Inventory 1990–2004

    1.1 Background information on the InventoryThe United Nations Economic Commission for Europe Convention on Long-range Transboundary Air Pollution (UNECE LRTAP Convention) was ratified (approved) by the European Community in 1982. Article 2 of the convention states that 'the Contracting Parties, taking due account of the facts and problems involved, are determined to protect man and his ...

  • Wallström Warms to Role for Aviation in EU Emissions Trading

    EU Environment Commissioner Margot Wallström has expressed cautious support for allowing European flights into the EU emissions trading scheme from 2008. Airport operator BAA has developed proposals to allow airlines to offset their rising emissions by buying EU allowances - and the UK Government looks likely to back the idea in its forthcoming aviation White Paper. Aviation's soaring ...

  • Emissions Trading - Ontario sets out emissions trading plans

    Canadian province of Ontario has issued a discussion paper proposing a hybrid emissions trading scheme covering nitrogen oxides and sulphur dioxide. Elisabeth DeMarco examines the plans for a scheme that could form the basis for a wider emissions trading system. Ontario sets out emissions trading plans In late March, the Ontario Ministry of the Environment (MoE) released a policy option paper, ...


  • Case study : VOC analysis in ambient air by FID dectection - Complete system airmOzone

    Ozone concentration has been multiplied by 5 in the last century in the middle latitudes of the northern hemisphere from 10 PPB in 1874 to approximately 50 PPB today. This is an increase of 1.6% per year; the trend is probably higher (2.4% a year) over the last decades. (Chapter 1 of the International Geosphere-Biosphere Program - World Climate Research Program) In order to stop this global ...


    By Chromatotec Group

  • How best to address aviation`s full climate impact?

    International regulation does not address non-CO2 emissions from aviation, despite their climate-warming effects. This study reports the findings of the AviClim research project, which investigated the feasibility of including CO2 and non-CO2 species in international protocols. Of several trading scenarios assessed, the authors found that a global emissions trading scheme for both kinds of ...

  • EMEP/EEA air pollutant emission inventory guidebook 2016

    1 Guidebook Introduction 1.1 Introduction The joint EMEP (1)/EEA Air Pollutant Emission Inventory Guidebook (the 'Guidebook'), following the 'Guidelines for Reporting Emissions and Projections Data' under the United Nations Economic Commission for Europe (UNECE) Convention on Long-range Transboundary Air Pollution (LRTAP) (2), provides concise guidance on how ...

  • Class I area impact analyses – recent guidance and updates

    As recommended in Appendix W of 40 Code of Federal Regulations (40 CFR) Part 51 (Guideline on Air Quality Models), the CALPUFF modeling system has been widely used for long-range transport dispersion modeling analyses, especially for applications related to Class I Area analyses (e.g., regional haze evaluation and Class I Prevention of Significant Deterioration (PSD) increment analysis). As U.S. ...


    By Trinity Consultants

  • Continous Emission Monitoring (CEMs)

    Presented in Track B1: CEMs at EUEC 2011,January 31 Phoenix, Arizona   B1.1  | Particulate CEM for wet FGD plant William Averdieck |  Managing ...

  • The challenges and benefits of local air quality monitoring

    A new generation of air quality monitors is now being offered to provide localised, real-time air quality readings – but the potential benefit is only just starting to be realised. It is generally accepted that whilst measurements from air quality reference stations are highly accurate, they are not sufficiently location-specific. Key pollutants – such as NO2 and PM2.5 ...


    By AQMesh

  • Designing and Implementing Perimeter Air Monitoring Programs

    Perimeter or fenceline ambient air quality and meteorological monitoring programs have become increasingly valuable at hazardous waste, landfill, dredging, ports, and MGP remediation sites. Air quality monitoring programs protect public health and reduce owner liability ...


    By AECOM

  • Keeping APCr out of Landfill

    The CIWM have recently featured an article by our very own Dr David Deegan in the latest edition of their magazine. The article explains why Tetronics International were unhappy to be informed recently that Defra ministers had taken the decision not to remove the ...

  • Projections in hindsight - An assessment of past emission projections reported by Member States under EU air pollution and GHG legislation

    Over the past decade, European Union (EU) Member States were required to regularly compile and report official estimates of their projected (future) emissions for the year 2010 under two complementary pieces of legislation: for greenhouse gases (GHGs), the Monitoring Mechanism Decision (MMD), i.e. Decision No 280/2004/EC of the European Parliament and of the Council of 11 February 2004 ...

  • Monitoring Environmental Quality

    ' In order to determine the effectiveness of actions to improve environmental quality it is necessary to be able to measure relevant environmental parameters at a level of detail which is accurate enough to distinguish the anticipated changes. However, the establishment and maintenance of monitoring systems is time-consuming and expensive and therefore the scale of such systems needs to be kept ...


    By The World Bank

  • European Union emission inventory report 1990–2013 under the UNECE Convention on Long-range Transboundary Air Pollution (LRTAP)

    This document is the annual European Union (EU) emission inventory report to the United Nations Economic Commission for Europe (UNECE) Convention on Long-range Transboundary Air Pollution (CLRTAP) (UNECE, 1979). The report and its accompanying data constitute the official submission by the European Commission (EC) on behalf of the EU as a Party to the Executive Secretary of UNECE. The report is ...

  • Composting releases less air pollution than previously thought - study

    A new study funded by the California Integrated Waste Board (CIWMB) indicates that well-managed composting of green waste and food waste releases significantly less air pollution than previously thought. The study also demonstrates that a relatively inexpensive management technique - covering active compost piles with a layer of finished compost - may lower air emissions even further, by as ...


    By BioCycle Magazine

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