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

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Presentation transcript:

ASSESSMENT OF URBAN AIR QUALITY, HOT SPOTS FRANK DE LEEUW

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

“ozone” formation: 1785

Compliance of health related LV/TV

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)

Urban Air Quality

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

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

Urban background typology

Street typologies

Traffic contribution

Comparison of emission factors number of stations CO/NOx PM/NOx AQ dataTRENDSAQ dataTRENDS FI DE n.a n.a. NL- n.a. 9.6n.a ES UK

Conclusions (more) results at next TFIAM??

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