Title: Chemical reactions at street scale using a Lagrangian particle dispersion model

Authors: Hadassah Kaplan; Christophe Olry; Jacques Moussafir; Olivier Oldrini; Frédéric Mahe; Armand Albergel

Addresses: IIBR, P.O.B 19, 74100 Ness-Ziona, Israel ' ARIA Technologies, 8 rue de la Ferme, 92100 Boulogne-Billancourt, France ' ARIA Technologies, 8 rue de la Ferme, 92100 Boulogne-Billancourt, France ' MOKILI, 53 rue Dareau, 75014 Paris, France ' AIRPARIF Surveillance de la qualité de l'air en Île-de-France 7 rue, Crillon 75004 Paris, France ' ARIA Technologies, 8 rue de la Ferme, 92100 Boulogne-Billancourt, France

Abstract: In the context of the FEDER AIRCITY project, Paris City is modelled with a 3 m resolution with the purpose of computing pollutant concentration relevant for human exposition. This project involves AIRPARIF (Ile-de-France Air Quality Monitoring Network), for emission and immission data, CEA (French Atomic and Alternative Energy Agency) for HPC availability, National Geographic Institute (IGN) for city 3D data. For pollutant dispersion modelling, PMSS software was selected including a parallelised fast 3D wind field and turbulence code and a parallelised stochastic LPDM. A key point in urban air quality is NO₂ concentration, so the NO/NO₂ transformation at the street scale is a key issue. In this paper, a preliminary independent study will focus on fundamental questions. After theoretical consideration, a practical case is carried on over the Paris Opera district. The results are compared with standard continuous measurements at two air quality stations of the AIRPARIF monitoring network.

Keywords: SPRAY; Lagrangian particle dispersion models; LPDM; urban pollution; street pollution; NO-NO2 reaction; atmospheric dispersion modelling; air pollution; air quality; Paris; France; pollution monitoring; nitrogen dioxide.

DOI: 10.1504/IJEP.2014.065920

International Journal of Environment and Pollution, 2014 Vol.55 No.1/2/3/4, pp.157 - 166

Published online: 17 Dec 2014 *

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