air monitoring roadside Articles

  • Air pollution – the invisible roadside killer

    The VW emissions scandal has helped to raise awareness of the deadly threat posed by air pollution in many of our towns and cities. In the following article, Jim Mills, Managing Director of Air Monitors, an instrumentation company, explains why diesel emissions will have to be lowered and how the latest monitoring technology will be an essential part of the solution. ...


    By Air Monitors Ltd.

  • 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

  • Roadside particulate levels at 30 locations in the Kathmandu Valley, Nepal

    Roadside particulate levels (PM10) at 30 locations throughout the Kathmandu Valley, Nepal are reported. There were seven sampling cycles from January to December 1999. PM10 levels ranged between 1000 and 6000 µ/m³ for 1-h sampling. There was no consistent trend in PM10 levels with respect to monitoring cycle, average precipitation or wind speed. There is no WHO ...


    By Inderscience Publishers

  • Personal exposure to particulate air pollution in transport microenvironments

    Personal measurements of exposure to particulate air pollution (PM10, PM2.5, PM1) were simultaneously madeduring walking and in-car journeys on two suburban routes in Northampton, UK, during the winter of 1999/2000.Comparisons were made between concentrations found in each transport mode by particle fraction, between differentparticle fractions by transport mode, and between transport ...


    By Elsevier

  • Application of The Air Pollution Model (TAPM) to the urban airshed of Bangkok, Thailand

    Bangkok has been faced with air pollution problems as a result of increasing traffic emissions. The Air Pollution Model (TAPM) was employed to simulate carbon monoxide (CO) concentrations based on an emissions inventory data. The hourly CO concentrations from a year-long simulation have been evaluated against observations from six monitoring sites. The simulated concentrations were evaluated ...


    By Inderscience Publishers

  • Ambient air quality of Kathmandu valley as reflected by atmospheric particulate matter concentrations (PM10)

    This paper presents the analysis and interpretation of ambient particulate matter concentrations measured as PM10 at a network of six air monitoring stations in Kathmandu valley during the years, 2003 through 2005. The purpose was to understand the pollution trends associated with different areas considering levels particulate matter concentrations representing the ambient air quality of ...

  • ADMS–Urban: developments in modelling dispersion from the city scale to the local scale

    Many countries perform national air quality assessments using grid–based numerical air dispersion models, generally referred to as 'regional' models. Advantages of these models include the ability to use temporally and spatially varying meteorology and model chemical reactions over large temporal and spatial scales. These models usually perform reasonably well against rural and urban background ...


    By Inderscience Publishers

  • Variability of PM10 concentrations dependent on meteorological conditions

    The influence of atmospheric exchange conditions on near-surface PM10 concentrations is analysed for four cities in the South-West of Germany in the period from 2001 to 2005. For each city, the PM10 data originates from roadside stations and Urban Background (UB) stations, that is, two types of official urban air quality monitoring stations characterised by different emission situations. The ...


    By Inderscience Publishers

  • AQMesh tracks pollution hot spots

    Location Wales (UK) Environment / location Rural, major roadside Installation Single AQMesh pod used in several locations Application Monitoring traffic emissions Objectives Having identified concerning levels of NO2 that breached ...


    By AQMesh

  • Why measuring the ambient NO2 without conversion?

    Nitrogen oxides NOx are pollutants that may have particular impact in terms of greenhouse gases, acidifying air etc ... issuance increased significantly since 1950 with the massive development of transport and industries. It therefore becomes necessary to provide measures always safer these pollutant gases, and to know the reliability of results. Currently, 60% of emissions of NO and NO2 are ...


    By ENVEA

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