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10th International Symposium “Transport and Air Pollution”, Boulder, Colorado : United States (2001)
Air pollution mapping over a city – virtual stations and morphological indicators
Anthony Ung 1, Christiane Weber 2, Gilles Perron 3, Jacky Hirsch 2, Joseph Kleinpeter 3, Lucien Wald 1, Thierry Ranchin 1
(17/09/2001)

Air quality is a major concern in many large cities of the world, where people and sources of pollution are concentrated in the same place. Most cities have acquired a surveillance network of air pollution. But the cost of these networks is high and limits the knowledge of pollutant concentration to specific points of the town. Presently practitioners generate maps of concentration in pollutants by mean of interpolating and extrapolation methods, such as thin plate or kriging methods. Those methods are familiar and their quality depends on the number of input parameters. Other tools by modeling pollutant dispersion exist but turn to be insufficient and are not validated yet. Based on a multi-sources approach, this paper presents a methodology for the mapping of pollutant concentrations over the city of Strasbourg and its vicinity. Sources related to air pollution and urban shapes and morphology are exploited to densify the number of pollution data used for a mapping by interpolation. Several terms are introduced: “identity card of a measuring station”, “morphological indicators”, “pseudostation” and “virtual station”.
1 :  Centre Énergétique et Procédés (CEP)
Mines ParisTech
2 :  Image et ville (IV)
CNRS : UMR7011 – Université Louis Pasteur - Strasbourg I
3 :  Association pour la Surveillance et l'Etude de la Pollution Atmosphérique en Alsace (ASPA)
ASPA
CEP/Sophia MINES ParisTech BP 207 - Rue Claude Daunesse - 06904 Sophia Antipolis Cedex – France - http://www.mines-paristech.fr/Fr/CEP/
Sciences de l'Homme et Société/Géographie

Sciences de l'environnement

Planète et Univers/Sciences de la Terre

Sciences de l'ingénieur/Traitement du signal et de l'image

Informatique/Traitement du signal et de l'image
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2001_tap_ung.pdf(398 KB)