A meeting on URBAN AIR QUALITY MODELLING hosted by Air Pollution Research in London Tuesday 4 March 2003 Modelling Air Quality in Urban Canyons Dr Sotiris.

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Presentation transcript:

A meeting on URBAN AIR QUALITY MODELLING hosted by Air Pollution Research in London Tuesday 4 March 2003 Modelling Air Quality in Urban Canyons Dr Sotiris Vardoulakis

Monitoring Sites in Paris Rennes Voltaire Leclerc

passive tubes Analysers & active samplers Anemometer & weather station wind h: 20.2 m h: 4.9 m h: 4.2 m h: 17.2 m m 25 m INERIS h: 2.8 m Benzene (ppb) Boulevard Voltaire - December 1998

h: m 2.8 m h: 17.8 m h: 4.3 m h: 1.6 m h: 17.8 m h: 4.4 m h: 3.3 m h: 1.6 m m Rue de Rennes - July m wind INERIS 25 m Benzene (ppb)

INERIS wind Avenue Leclerc - July 2001 h: 16.5 m h: 7.8 m h: 1.5 m 24 m h: 2.6 mh: 2.7 m 45 m h: 2.6 m h: 9.1 m h: 16.3 m h: 30.5 m h: 2.8 m 36 m h: 3.3 m 0.8

Benzene (ppb) INERIS wind Avenue Leclerc - July m 45 m 36 m 0.8

Street Canyon Modelling Dispersion Models: OSPM - AEOLIUS - STREET Emission Factors: Buckland - IMPACT - Touaty Meteorological Data: Montsouris - St. Jacques - Orly Airport

Boulevard Voltaire (regular canyon)

Rue de Rennes (regular canyon)

Avenue Leclerc (asymmetric canyon)

Conclusions Urban air quality: Strong spatial variability BTX diffusive samplers: Efficient multi-site monitoring tool Regular canyons: Semi-empirical models might suffice Complex urban locations: Advanced models required

Acknowledgments Pr Bernard Fisher (Environment Agency) Pr Koulis Pericleous (Univ. of Greenwich) Dr Norbert Gonzalez-Flesca (INERIS) Mairie de Paris