air quality monitor Articles

  • Air Quality Monitoring

    Why monitor air quality? Well, to monitor is to know. Everything else is just more or less qualified guesses. International, national and local air quality targets and limits are also tied to monitoring results. What is Air Quality? How is air quality ...


    By Opsis AB

  • Rough set-based regionalisation in air quality monitoring

    Regionalisation is to organise a large set of spatial objects into spatially contiguous regions despite optimising the homogeneity of the derived regions, while representing social and economic geography. To confront this problem, it is necessary to classify the regions to form groups that are homogeneous in air quality attributes. It is to develop a system that applies data mining techniques to ...


    By Inderscience Publishers

  • Buying AQM Equipment or AQ Data? It’s Your Choice

    In the traditional approach to air quality monitoring, those “who wants to know” have also owned and maintained the monitoring equipment generating the answers. This approach worked quite fine as long as the user had the budget to invest in the equipment and an organization large enough to maintain it.  However, recent years’ slimmed organizations have opened up for an ...


    By Opsis AB

  • Air Quality Monitoring in the EU – What, Where, and How?

    Air quality is essential to all of us, and consequently, so is the monitoring of air quality. However, what should be monitored, and where, and how? There are many bids on that. Some ten years ago, The European Union established its directive 2008/50/EC “on ambient air quality and cleaner air for Europe”. It is aimed at protecting human health as well as vegetation, and ...


    By Opsis AB

  • Air Quality Monitoring – BTEX Analyses

    Benzene is a hydrocarbon that appears as a volatile liquid, capable of evaporating rapidly at room temperature; it is colourless and easily flammable and is the progenitor of a family of organic compounds defined as aromatic, due to the characteristic odour. Benzene is a natural component of oil (1-5% by volume) and its refining derivatives. ...


    By Pollution S.r.l.

  • Why Air Quality Monitoring Matters

    Air pollution causes premature deaths and has significant consequences on the global economy. This has been presented in several reports recently. ...


    By Opsis AB

  • Selecting the Right Air Quality Monitor

    There are many types of air quality monitors available, but which one is the best choice for measuring gaseous air pollutant concentrations? ...


    By Opsis AB

  • The ‘ins and outs’ of air quality monitoring

    The National Institute for Health and Care Excellence (NICE) recently issued draft guidance on ‘Air pollution - outdoor air quality and health.’ In the following article Jim Mills, Managing Director of Air Monitors Ltd, explains why there will need to be more funding for monitoring if the mitigation measures mentioned in the guidance are to be implemented effectively. Jim also ...


    By Air Monitors - ACOEM Group

  • Analysis of local concentration gradients in complex built environments: implications for Air Quality Management Areas

    This paper reviews the existing guidance on placement of permanent air quality monitoring stations within urban areas and suggests the principles for a new, performance-based guidance. An integrated air quality model has been developed and validated for the designated Air Quality Management Area (AQMA) located in Glasgow City Centre to analyse the importance of local concentration gradients on ...


    By Inderscience Publishers

  • Cartography for air quality monitoring: the geostatistical approach

    Being able to provide quick and accurate pollutant maps from readings at isolated measurement stations is becoming more important today in light of the European norms on air quality and the public’s demand to be informed. Commonly used algorithms for cartography are quick but their accuracy remains to be determined.Firstly, the choice of method is arbitrary and based on user’s subjective ...


    By Geovariances

  • IFDM modelling for optimal siting of air quality monitoring stations around five oil refineries

    An IFDM modelling study has been conducted to determine the optimal siting of air quality monitoring stations around five oil refineries. The purpose of this immission monitoring network is specified in environmental legislation. The most appropriate output parameter of the IFDM model for this study is the 98th percentile of the moving 24 h averages, P98,m24h. Modelling for the optimal siting of ...


    By Inderscience Publishers

  • Passive samplers for air quality monitoring in a Brazilian university

    The aim of this paper was to evaluate the applicability of passive samplers for the monitoring and diagnosis of air pollution at Passo Fundo University, focusing on atmospheric pollutants NO 2 and O 3 . The samplers were built in accordance with already verified methodologies and were placed in several locations in the university campus, namely: energy generator, pool heating boiler, ...


    By Inderscience Publishers

  • Calibration vital for air-quality monitoring equipment

    Industrial settings can be rife with potential chemical hazards. The danger might be an environmental one, such as emissions that can harm the atmosphere or nearby water systems. Or the risk could be to the employees at the facility, who need clean, safe air to breath. In many cases, both dangers might be present. Industrial plants are required by a number of national and international protocols ...


    By Specgas Inc.

  • Air quality monitoring: establishing criteria for station classification

    According to the Council Decision 97/101/EC on Exchange of Information, stations should be classified in relation to the type of area where they are located and according to the type of dominant emission sources influencing the air pollutant concentrations at the station. A detailed methodology was developed for the validation of the classification of Portuguese air quality monitoring stations, ...


    By Inderscience Publishers

  • 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

  • Thurrock borough council

    Service you can trust Back in the early 1990s, before air quality monitoring legislation had come into force, Thurrock Borough Council was one of the first local authorities to become an Enviro Technology customer. Now, with several monitoring stations across the borough, it is one of the strongest advocates for ET’s service and expertise. Environmental Health Officer Mark Gentry ...

  • Vehicular Emission (Air Quality) Monitoring Study in Lagos, Nigeria

    INTRODUCTION On October 12, 2006 residents around Lagos Metropolis woke up, to their wonderment, to a hazy atmosphere which was very unusual to Lagosians and indeed to so many people. Many were lost as to what was happening. Some schools, especially around ...

  • First evaluation of a novel screening tool for outlier detection in large scale ambient air quality datasets

    Systematic collection of long term meso- to large-scale datasets of ambient air quality provides an indispensible means for air pollution monitoring. However, the quality of these monitoring data depends on the chosen method of measurements and the QA/QC procedures applied. We present the first version of a prototyped screening tool for the automatic detection of outliers in large data volume ...


    By Inderscience Publishers

  • Diluting with Equal Capillaries Technique : why the best results ?

    Equal pressures applied to equal capillaries induce equal flows. When equal flows are some from a gas to be diluted and some (the remaining) from a diluting gas, dilution is given by the ratio of integer numbers : the number of capillaries crossed by the gas to be diluted divided by the total capillaries number.  The key for having very low uncertainty in dilution with a "Equal capillaries" ...


    By Be.T.A. Strumentazione Srl

  • An ambient air quality monitoring network for Buenos Aires city

    This paper proposes an objective methodology for designing a multi-pollutant urban air-quality monitoring network to detect concentrations greater than reference concentration levels (CL). The network design includes both air quality simulation and an objective analysis based on monitoring tasks. The proposed methodology is applied to the city of Buenos Aires. Pollutants of concern are nitrogen ...


    By Inderscience Publishers

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