Journal
ATMOSPHERIC ENVIRONMENT
Volume 43, Issue 31, Pages 4780-4783Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.atmosenv.2008.07.043
Keywords
Urban air quality; Nitrogen dioxide; Traffic emissions
Ask authors/readers for more resources
The annual air quality standard of NO2 is often exceeded in urban areas near heavy traffic locations. Despite significant decrease of NOx emissions in 1986-2005 in the industrial and harbour area near Rotterdam, NO2 concentrations at the urban background remain at the same level since the end of the nineties. Trend analysis of monitoring data revealed that the ozone/NOx equilibrium is a more important factor than increasing direct NO2 emissions by traffic. The latter has recently been identified as an additional NO2 source due to the introduction of oxy-catalytic converters in diesel vehicles and the growing number of diesel vehicles. However, in Rotterdam over the period 1986-2005 direct NO2 emissions by road traffic only increased 3-4%. Due to the importance of the ozone/NOx equilibrium, it is concluded that local NO, emissions in Rotterdam need substantial reduction to achieve lower NO2 urban background levels. This is a relatively costly abatement strategy and, therefore, a hotspot approach aiming at reducing NOx emissions by local traffic measures is more effective to meet European air quality standards. (C) 2008 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available