The emission levels are predicted to be increased after 2015 (DEFRA, 2007b) and exposure levels are higher for people within 100 m distance from the road (Zhu et al.,2002b). Therefore, the UK has given more attention towards the areas with high amount of traffic reported in urban greening (City of London Air Quality Strategy 2011-2015). Based on that, locations exposed to more traffic-generated pollution will be selected as experimental
The emission levels are predicted to be increased after 2015 (DEFRA, 2007b) and exposure levels are higher for people within 100 m distance from the road (Zhu et al.,2002b). Therefore, the UK has given more attention towards the areas with high amount of traffic reported in urban greening (City of London Air Quality Strategy 2011-2015). Based on that, locations exposed to more traffic-generated pollution will be selected as experimental