Abstract Book

showed high self-contribution of total nitrate. However, Korea and Japan were influenced
by northern and central China and showed low self-contributions which were 23~46%
and 43~69%, respectively, with seasonal variation. We also discovered that we could not
ignore the impact of Japan for Korea. Their contribution showed a similar level as the
self-contribution of Korea.
Relationships Between The Surface Layer Dynamics And Ambient VOCs
Concentrations In An Urban Area Under Industrial Emissions (70)
Y. Xiang, 1 H. Delbarre, 1 N. Locoge, 2 T. Leonardis, 2 M. Fourmentin, 1 P. Augustin 1 ;
1 Université du Littoral Côte d'Opale, Laboratoire de PhysicoChimie de l'Atmosphère,
Dunkerque, France, 2 Ecole des Mines de Douai, Dpt. Chimie et Environnement, Douai,
France
The transport and dispersion of pollutants depends on the temporal and spatial variety of
sources and meteorological phenomena, particularly on a local scale. The specific gas
marker measurement associated with the characterization of the surface layer behaviours
may constitute a tool to study industrial emission dynamics. Our objective is to develop a
methodology to examine the interdependence of the behaviours of type of industrial
sources and the influences of meteorological conditions. Meanwhile, this paper will focus
on the variation of the concentration of volatile organic compounds (VOCs) as a function
of dynamic parameters. A measurement campaign of 90 VOCs, among which 20 are
oxygenated volatile organic compounds (OVOC), was performed by using gas
chromatography during July and September 2009 at two urban sites exposed to industrial
emissions in the Urban Community of Dunkerque. The VOC concentrations were
examined by taking into account several meteorological parameters (wind directions,
atmospheric stability...). The ambient VOC pollution is not only predominated by wind
direction, but also by turbulence intensity and the highest levels were recorded for
slightly unstable conditions. Different behaviours of some VOCs in the same wind
direction allow the nature of different sources to be identified. And so, from this analysis,
it’s possible to distinguish between pollutants emitted from chimneys and those due to
surface emissions. These specific markers will make it possible to use a positive matrix
factorization (PMF) modeling to calculate the contribution of an industrial source and to
study the evolution of this contribution in regard of meteorological conditions.
3E: EFCA/IUAPPA Special Session: Co-Benefits of Integrated Climate-Air
Pollution Policies and Strategies [Panel]
(Sponsored by European Federation for Clean Air) - Historically, air pollution and
climate change have been addressed at distinct periods and through different bodies. An
increasing number of studies and conferences, notably within the European Community
institutions, have shown evidence that air pollution and climate change phenomena are
closely intertwined, with both synergetic and antagonistic effects. Different assessment
methods and tools, such as the GAINS model, already allow looking into various aspects
of the co-benefits and possible trade-offs of air pollution/climate change policies.
Awareness is progressively raising at international, national and sub-national levels that
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