1. ASSESSMENT OF URBAN AIR QUALITY, HOT SPOTS FRANK DE LEEUW

2. An old problem: Haarlem, 1608 Evelyn J. (1661) Fumifugium

3. “ozone” formation: 1785

4. Compliance of health related LV/TV

5. Compliance with LV and TV Ozone: n=25TV=120 ug/m3 (daily 8h-max) PM10: n=35LV=50 ug/m3 (24h) NO2: n=1LV=40 ug/m3 (annual) SO2: n=3LV=125 ug/m3 (24h)

6. Urban Air Quality

8. Urban hotspot AQ analysis Quantifying influence of local and urban emissions on hot spot concentrations “street emission ceiling”: maximum emission to avoid breaching of LV given (urban) background concentration

9. activities Design of urban & street typologies analysis of AQ data: traffic contribution, local emission estimates model demonstation to well-documen- ted cases explore ideas on how to link to IA- framework

10. Urban background typology

11. Street typologies

12. Traffic contribution

13. Comparison of emission factors number of stations CO/NOx PM/NOx AQ dataTRENDSAQ dataTRENDS FI46.3 + 1.29.40.40 + 0.160.12 DE58.3 + 2.2n.a.0.31 + 0.10n.a. NL- n.a. 9.6n.a. 0.08 ES77.1 + 2.39.40.22 + 0.060.12 UK12.516.40.0680.06

14. Conclusions (more) results at next TFIAM??