Advances in Science and Research www.adv-sci-res.net 1992-0628 1992-0636 2 7th EMS Annual Meeting and 8th European Conference on Applications of Meteorology 2007 2008 10.5194/asr-2-53-2008 http://www.adv-sci-res.net/2/53/2008/ http://www.adv-sci-res.net/2/53/2008/asr-2-53-2008.html http://www.adv-sci-res.net/2/53/2008/asr-2-53-2008.pdf 53 55 2008-05-19 Origin and influence of PM₁₀ in urban and in rural environments A. Kerschbaumer kerschba@zedat.fu-berlin.de M. Lutz Institute of Meteorology, FU-Berlin, Germany Senate Department for Health, Environment and Consumer Protection, Berlin, Germany The paper presents an estimate of emission source influence on PM₁₀ concentrations in Berlin. Particulate matter less than 10 μm in aerodynamic diameter (PM₁₀) is a conglomerate of different chemical components related to distinct sources and physico-chemical processes in the atmosphere and lithosphere. Emission reduction thus has temporally and spatially varying effects on different scales. Urban PM₁₀ concentrations are heavily influenced by long range transport (up to 70%) from remote source areas, whereas rural air pollution is strongly determined by urban emissions. By means of emission reduction scenario simulations with a chemistry-transport-model it has been found that on average two third of the urban background concentrations in Berlin are due to Berlin-specific emissions. This percentage varies strongly considering primary and secondary components: only about 5% of secondary PM₁₀ concentrations are related to local emissions, while approximately 70% of primary concentrations stem from the urban sources. City related emissions influence homogenously the rural air-pollution concentrations, but with different ranges of influence. Lenschow, P., Abraham, H.-J., Kutzner, K., Lutz, M., Preuss, J., and Reichenbächer, W.: Some ideas about the sources of PM$_10$, Atmos. Environ., 35, 1, 23–33, 2001. Reimer, E., Kerschbaumer, A., Beekmann, M., and Möller, M.: Measurement campaign HOVERT: Aerosol transports, Geophys. Res. Abstr., 6, 04234, 2004. Stern, R., Yamartino, R., and Graff, A.: Dispersion modelling within the European Community's Air Quality Directives: long term modelling of O3, PM$_10$ and NO2, 26th ITM on Air Pollution Modelling and its application, May 26–30, Istanbul, Turkey, Abstract No 6.13, 2003. Thunis, P., Rouil, L., Cuvelier, C., Stern, R., Kerschbaumer, A., Bessagnet, B., Schaap, M., Builtjes, P., Tarrason, L., Douros, J., Moussiopoulos, N., Pirovano, G., and Bedogni, M.: Analysis of model responses to emission-reduction scenarios within the CityDelta project, Atmos. Environ., 41, 1, 208–220, 2007. van Loon, M., Vautard, R., Schaap, M., Bergström, R., Bessagnet, B., Brandt, J., Builtjes, P. J. H., Christensen, J. H., Cuvelier, C., Graff, A., Jonson, J. E., Krol, M., Langner, J., Roberts, P., Rouil, L., Stern, R., Tarrason, L., Thunis, P., Vignati, E., White, L., et al.: Evaluation of long-term ozone simulations from seven regional air quality models and their ensemble, Atmos. Environ., 41, 10, 2083–2097, 2007.