Dispersion of pollutants and estimation of emissions in a street canyon in Rouen, France

被引：24

作者：

Ghenu, A. ^{[1
]}

Rosant, J. -M. ^{[1
]}

Sini, J. -F. ^{[1
]}

机构：

[1] Ecole Cent Nantes, CNRS, UMR 6598, Lab Mecan Fluides, F-44321 Nantes 3, France

来源：

ENVIRONMENTAL MODELLING & SOFTWARE | 2008年 / 23卷 / 03期

关键词：

PM2.5; CO; NOx; street canyon; traffic; inverse simulations vehicle emission factors; OSPM;

D O I：

10.1016/j.envsoft.2007.05.017

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A six-week data set with simultaneous measurements of gaseous pollutants (NOx and CO) and particle matter (PM2.5) inside an urban street canyon and nearby urban back-round location in Rouen (France) is presented. The experimental results for working days and weekends show the effects on the pollutant dispersion. The background/street concentrations mean ratios are 0.32 for CO, 0.43 for NOx and 0.67 for PM2.5. The OSPM model was used in two ways: (i) to model the pollutant concentrations in the street canyon (direct modeling) and (ii) to predict the traffic emissions from the measured concentrations (inverse simulation). An estimation of the hourly emission factors is obtained for NOx, CO and PM2.5 for working days and Sundays; a daily emission factor is also given. Mean emission factors per vehicle are 0.64 g NOx/km veh, 7.5 g CO/km veh and 0.060 PM2.5/km veh for the working days. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：314 / 321

页数：8

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