air pollution dispersion Articles

  • Development of an integrated system for air pollutant dispersion modelling

    A complex expert system for air pollutant dispersion modeling (ScalEx) is currently being developed at Faculty of Technology and Metallurgy in Belgrade. The project goal is to develop a powerful software system as an engineering toolbox for modelling air pollutant dispersion under various conditions and terrain configurations. ScalEx is planned to be an integrated software system of the new ...


    By Inderscience Publishers

  • Different parameterisation of a Gaussian scheme: intercomparison study

    The aim of this work is to define the most efficient parameterisation of the PBL (planetary boundary layer) by using the simulation with a simple Gaussian dispersion model of the plume type and comparing it with the improved OML model. A different type of σy and σz parameterisation in a Gaussian dispersion scheme was introduced. The old Pasquill–Gifford ...


    By Inderscience Publishers

  • A fluctuating plume model for pollutants dispersion with chemical reactions

    A fluctuating plume model for pollutant dispersion is developed. The model is able to include chemical reactions, accounting for segregation. The model is tested against measured data in wind tunnel experiment, where NO is emitted from a source in an environment of ozone. The results are presented in terms of the plume centre line dispersion and cross sections at different distances. It is shown ...


    By Inderscience Publishers

  • CAMxRunner: a modular framework for efficient chemical transport modelling

    Since many political decisions concerning air quality are based on models, modelling reproducibility and quality assurance are of interest to a wide audience. We developed a modular computer program called CAMxRunner to address this need. CAMxRunner automates runs of the Comprehensive Air quality Model with extensions (CAMx) including pre– and post–processing. Except for the ...


    By Inderscience Publishers

  • A neural net-air dispersion model validation study using the Indianapolis urban data set

    It is presented an integrated model composed by a dispersion model and a Neural Net (NN). The NN uses the concentrations predicted by the an analytical dispersion model as input variables of the net. This methodology was validated using Indianapolis urban data set where releases from an elevated emission source were considered. An improvement of performances is shown when the neural network is ...


    By Inderscience Publishers

  • Canarina DISPER software · cadmium · air pollution · commands 2

    Due to the features of the software that allows to simulate the process of air pollution dispersion immediately, the numeric simulation is carried out with a remarkable speed. You create the graphical interface for your pollutant stacks by drawing point sources in a graphical way. You create the simulation process by drawing point sources, such as stacks, on the DISPER window. Next, you set ...

  • Application of Lagrangian particle dispersion models to air quality assessment in the Trans-Manche region of Nord-Pas-de-Calais (France) and Kent (Great Britain)

    In the framework of the cross-border EU INTERREG IIIA activity, the joint Anglo-French project, ATTMA, has been commissioned to study Aerosol Transport in the atmosphere of the Cross-Channel, or 'Trans-Manche' region of Nord-Pas-de-Calais (France) and Kent (Great Britain). The air quality of the region is dominated by the industrial area of Dunkerque, in addition to transportation sources linked ...


    By Inderscience Publishers

  • Daytime ventilation conditions in Buenos Aires city, Argentina

    From routinely available observational data, the daytime ventilation conditions in Buenos Aires city have been studied. The climatological behaviour was analysed. The study included the effects of local conditions, such as the coastal location, the urban features and the influence of air humidity on the characteristic parameters of the dispersive capability of the atmosphere. The frequencies of ...


    By Inderscience Publishers

  • Consolidating tools for model evaluation

    An overview is provided of some central tools and data sets that are currently available for evaluation of atmospheric dispersion models. The paper serves as a guide to the Model Validation Kit, which was introduced already in 1993, but has undergone a recent revision. The Model Validation Kit is a package of field data sets and software for model evaluation plus various supplementary materials. ...


    By Inderscience Publishers

  • An urban scale model for pollutant dispersion in Rome

    A Gaussian model software (Atmospheric Dispersion Model System?ADMS-Urban) is used to forecast the carbon monoxide concentrations in the Urban Boundary Layer (UBL) of the city of Rome, Italy. The simulations refer to 14 days during 2002. Two data set inputs were considered in order to evaluate the urban background concentration and the effects of the main roads surrounding the monitoring ...


    By Inderscience Publishers

  • Dose projection using dispersion models

    Dose projection is a tool for decision making in the case of a nuclear emergency situation. In this work the dose projection software developed for the Krsko NPP located in Slovenia is described. This software can be used for a quick emergency evaluation in the case of a hypothetical pressurised water reactor accident, and for emergency exercises. The software was developed to estimate reactor ...


    By Inderscience Publishers

  • Exploring the properties of local and non–local vertical diffusion schemes in the EMEP model using 222Rn data

    The simulations of hourly 222Rn concentrations are performed with the EMEP model to validate different parameterization schemes for vertical mixing. In addition to recently evaluated non–local vertical diffusion schemes, a new scheme which is a local and based on total turbulent energy (TTE) has been implemented in the model and evaluated. Due to its properties 222Rn ...


    By Inderscience Publishers

  • Well mixed condition verification in windy and low wind speed conditions

    Dispersion in low wind speed conditions is governed by meandering that disperses plumes over wide angular sectors, thus g.l.c. are lower than predicted by Gaussian models. It was proposed to model these dispersion situations in homogeneous conditions with two coupled Langevin equations, based on low wind speed turbulence analysis. Their parameters were derived from the autocorrelation functions ...


    By Inderscience Publishers

  • Validation of a mesoscale meteorological simulation over Po Valley

    Very high secondary pollution concentrations often occur in Northern Italy, due to the density of anthropogenic emissions and frequent stagnant meteorological conditions that characterise the area. In such a situation it is important to use Chemical Transport Models (CTMs), to properly describe phenomena bringing to pollution formation and accumulation. Meteorological models are one of the ...


    By Inderscience Publishers

  • Plans and programmes to improve air quality over Portugal: a numerical modelling approach

    PM10 limit values have been surpassed in the northern region of Portugal, and, according to European legislation, Plans and Programmes (PP) must be designed and implemented to reduce those PM10 levels. The Air Pollution Model (TAPM) was applied over the study region, to the year 2004, for the reference situation with the current PM10 emissions; and, for the reduction scenario with PM10 emissions ...


    By Inderscience Publishers

  • Comparison of AERMOD and EIAA with respect to the Alaska tracer data

    This paper inter-compares the performance of AERMOD and EIAA (the current Chinese regulatory model) against the Alaska tracer field experiment. The predicted maximum arc-wise Ground Level Concentrations (GLC) are compared with the observed tracer field data. The scatter plots, QQ plots, and residual plots are examined. EIAA frequently underestimates the GLC because it lacks any downwash ...


    By Inderscience Publishers

  • Validation of the improved AEROPOL model against the Copenhagen data set

    The improved Gaussian dispersion model AEROPOL (University of Tartu, Estonia) is validated against the Copenhagen air pollution dispersion dataset belonging to the Model Validation Kit of the Initiative on "Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes". Model updates include the application of: surface heat flux instead of indirect indicators of surface layer ...


    By Inderscience Publishers

  • Dispersion modelling: a tool for local air quality management

    A local air quality management system, and the use of dispersion modelling as a tool for the system, are described. The Turkish town of Gehze is used as a model.Keywords: air pollution, air quality management, dispersion modelling, ...


    By Inderscience Publishers

  • Pollutant dispersion over two–dimensional idealised urban roughness: a large–eddy simulation approach

    A series of two–dimensional (2D) street canyon models with a wide range of building–height–to–street–width (aspect) ratios are employed in this study to elucidate the pollutant transport over idealised urban areas. The large–eddy simulation (LES) is used to resolve the turbulent flows and pollutant transport in the urban boundary layer (UBL) over the street canyons. The results show that the ...


    By Inderscience Publishers

  • Model comparison in simulating the atmospheric dispersion of a pollutant plume in low wind conditions

    This study investigates the performance of different air pollution dispersion models in low wind conditions. The models have been applied to two sites frequently characterised by weak winds: the cities of Modena and Reggio Emilia, in the Po River Valley (Northern Italy). The emission sources are the municipal waste incinerator (Modena) and a turbogas plant (Reggio Emilia). Total Suspended ...


    By Inderscience Publishers

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