ASSESSMENT OF URBAN AIR QUALITY, HOT SPOTS

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ASSESSMENT OF URBAN AIR QUALITY,HOT SPOTS

• FRANK DE LEEUW

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An old problem Haarlem, 1608

• Evelyn J. (1661) Fumifugium

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ozone formation 1785
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Compliance of health related LV/TV
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Compliance with LV and TV

• Ozone n25 TV120 ug/m3 (daily 8h-max)
• PM10 n35 LV50 ug/m3 (24h)
• NO2 n1 LV40 ug/m3 (annual)
• SO2 n3 LV125 ug/m3 (24h)

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Urban Air Quality
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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

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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

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Urban background typology
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Street typologies
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Traffic contribution
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Comparison of emission factors
  number of       stations     CO/NOx    
PM/NOx     AQ data TRENDS AQ data TRENDS FI 4 6.3
1.2 9.4 0.40 0.16 0.12 DE 5 8.3
2.2 n.a. 0.31 0.10 n.a. NL -  n.a.  9.6 n.a.
  0.08 ES 7 7.1 2.3 9.4 0.22
0.06 0.12 UK 1 2.5 16.4 0.068 0.06
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Conclusions

• (more) results at next TFIAM??

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