Article: Comparison between dispersion parameters deduced from wind fluctuations and Pasquill values: application to a short-range urban pollution case Journal: International Journal of Environment and Pollution (IJEP) 1995 Vol.5 No.4/5/6 pp.671 - 678 Abstract: The real-time prediction of pollution episodes in urban areas close to industrial plants is of great importance for regulatory control, so that emissions can be reduced when high pollution levels are observed. For this purpose, an |on-line| practical model must be used with a limited number of input meteorological data. However, two questions arise. What are the ability and the accuracy of the available models? How should the models be used for this regulatory purpose? For the latter question, there is the problem of the knowledge and integration into the procedure of large-scale meteorological forecasts; this means that one must know in advance the meteorological conditions over the urban zone of interest. This paper provides a brief account of a comparison between predictions made with a Gaussian model and concentration measurements obtained by the air pollution network AIR NORMAND. Particular attention has been paid to the determination of the dispersion parameters. A comparison is made between the use of Pasquill-Gifford stability classes and the use of wind fluctuation measurements as input data. Inderscience Publishers - linking academia, business and industry through research

Title: Comparison between dispersion parameters deduced from wind fluctuations and Pasquill values: application to a short-range urban pollution case

Authors: A. Coppalle, P. Paranthoen, L. Rosset, V. Delmas, A. Francois, M. Hamida

Addresses: URA 230 University of Rouen, 76821 Mt St Aignan, France. ' URA 230 University of Rouen, 76821 Mt St Aignan, France. ' URA 230 University of Rouen, 76821 Mt St Aignan, France. ' AIR NORMAND, rue de la porte de champs, 76000 Rouen, France. ' AIR NORMAND, rue de la porte de champs, 76000 Rouen, France. ' AIR NORMAND, rue de la porte de champs, 76000 Rouen, France

Abstract: The real-time prediction of pollution episodes in urban areas close to industrial plants is of great importance for regulatory control, so that emissions can be reduced when high pollution levels are observed. For this purpose, an |on-line| practical model must be used with a limited number of input meteorological data. However, two questions arise. What are the ability and the accuracy of the available models? How should the models be used for this regulatory purpose? For the latter question, there is the problem of the knowledge and integration into the procedure of large-scale meteorological forecasts; this means that one must know in advance the meteorological conditions over the urban zone of interest. This paper provides a brief account of a comparison between predictions made with a Gaussian model and concentration measurements obtained by the air pollution network AIR NORMAND. Particular attention has been paid to the determination of the dispersion parameters. A comparison is made between the use of Pasquill-Gifford stability classes and the use of wind fluctuation measurements as input data.

Keywords: industrial emissions; urban pollution; wind speed fluctuations; atmospheric dispersion models; environmental impact assessment; air pollution; environmental pollution; modelling.

DOI: 10.1504/IJEP.1995.028414

International Journal of Environment and Pollution, 1995 Vol.5 No.4/5/6, pp.671 - 678

Published online: 17 Sep 2009 *

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Title: Comparison between dispersion parameters deduced from wind fluctuations and Pasquill values: application to a short-range urban pollution case

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