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Urban Air Quality Assessment and Hotspots Analysis: A Comprehensive Study

This study by Frank de Leeuw delves into urban air quality assessment, hotspots analysis, and compliance with health-related limit values. The research quantifies the impact of local emissions on hot spot concentrations and suggests a "street emission ceiling" to prevent limit value breaches. It also explores urban and street typologies, traffic contributions, and compares emission factors in various countries.

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Urban Air Quality Assessment and Hotspots Analysis: A Comprehensive Study

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

  6. Urban Air Quality

  7. 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

  8. 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

  9. Urban background typology

  10. Street typologies

  11. Traffic contribution

  12. Comparison of emission factors number of stations  CO/NOx PM/NOx AQ dataTRENDSAQ dataTRENDS FI 46.3 + 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

  13. Conclusions • (more) results at next TFIAM??

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