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A meeting on URBAN AIR QUALITY MODELLING hosted by Air Pollution Research in London

A meeting on URBAN AIR QUALITY MODELLING hosted by Air Pollution Research in London. Modelling Air Quality in Urban Canyons. Dr Sotiris Vardoulakis. Tuesday 4 March 2003. Monitoring Sites in Paris. Voltaire. Rennes. Leclerc. Boulevard Voltaire - December 1998. Benzene (ppb).

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A meeting on URBAN AIR QUALITY MODELLING hosted by Air Pollution Research in London

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

  2. Monitoring Sites in Paris Voltaire Rennes Leclerc

  3. Boulevard Voltaire - December 1998 Benzene (ppb) wind 3.1 h: 20.2 m 2.0 h: 17.2 m passive tubes 25 m 1.3 2.5 4.5 h: 4.9 m h: 4.2 m Anemometer & weather station Analysers & active samplers INERIS h: 2.8 m 30 m

  4. Rue de Rennes - July 1999 Benzene (ppb) wind 1.5 1.1 h: 17.73 m h: 17.8 m h: 17.8 m 25 m 0.4 2.1 1.6 0.5 h: 4.3 m h: 4.4 m 2.8 m 2.5 m 1.5 h: 3.3 m h: 1.6 m 2.8 1.7 INERIS h: 1.6 m 22 m

  5. Avenue Leclerc - July 2001 Benzene (ppb) 0.9 h: 30.5 m wind 1.7 0.9 h: 16.5 m h: 16.3 m 36 m 24 m 0.9 h: 9.1 m 1.8 h: 7.8 m 1.4 0.8 h: 3.3 m 2.6 2.5 1.2 h: 2.6 m h: 2.6 m h: 2.7 m h: 1.5 m 2.9 INERIS h: 2.8 m 1.1 45 m

  6. Avenue Leclerc - July 2001 Benzene (ppb) 0.9 wind 0.9 1.7 36 m 24 m 0.9 1.8 1.4 0.8 2.6 2.5 1.2 2.9 INERIS 1.1 45 m

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

  8. Boulevard Voltaire (regular canyon)

  9. Rue de Rennes (regular canyon)

  10. Avenue Leclerc (asymmetric canyon)

  11. 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

  12. Acknowledgments Pr Bernard Fisher (Environment Agency) Pr Koulis Pericleous (Univ. of Greenwich) Dr Norbert Gonzalez-Flesca (INERIS) Mairie de Paris sotiris.vardoulakis@lewes.gov.uk

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