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List of Abstracts 208Philippe Royer 1 , Patrick Chazette 2 , Jean-Christophe Raut 31 Laboratoire des Sciences du Climat et de l’Environnement / LEOSPHERE2 Laboratoire des Sciences du Climat et de l’Environnement3 Laboratoire Atmosphères Milieux Observations SpatialesContact: philippe.royer@lsce.ipsl.frA compact and mobile lidar has been deployed around Paris onboard a van during the MEGAPOLI(Megacities: Emissions, urban, regional and Global Atmospheric POLlution and climate effects, andIntegrated tools for assessment and mitigation) summer experiment in July 2009. The measurementsperformed with this Rayleigh-Mie lidar have been converted into PM10 concentrations profiles using opticalto mass relationships determined during previous campaign around Paris. This method is here described andan example of application on the 1st July 2009 is presented and compared with ground-based stations fromAirparif network. Such an approach is a powerful way for the validation of air quality mesoscale models.P-Observations 2.83 ID:4144 10:30Seasonal variation of black carbon aerosol at Happo, a remote mountain site in JapanX. Liu 1 , Y. Kondo 1 , L.K. Sahu 1 , N. Takegawa 1 , K. Nakagomi 2 , N. Oshima 1 , M. Kajino 11 Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan2 Nagano Environmental Conservation Research Institute, Nagano, Nagano 380-0944, JapanContact: liu@atmos.rcast.u-tokyo.ac.jpBlack carbon (BC) aerosols efficiently absorb solar visible radiation and contribute to the radiative forcingof the atmosphere on regional and global scales. The spatial distributions of BC are mainly determined bythe transport and emission rates. Asia was estimated to be one of the largest source regions of BC in 2000.Therefore, it is important to study the distribution of BC in the outflow of Asia. For this purpose, we madecontinuous measurements of mass concentrations of BC (MBC) with a filter-based absorption photometer(continuous soot monitoring system; COSMOS) at a remote mountain site, Happo, Japan (137°48′Elongitude and 36°41′N latitude, 1800 m ASL) for 2 years from August 2007 to August 2009. The MBC didnot show significant diurnal variations, suggesting little influence from nearby sources. The average andmedian values of MBC were 0.27±0.18 µg m-3 and 0.23±0.03 µg m-3, respectively. The MBC showed welldefinedseasonal variations with spring maximum and summer minimum. We also calculated MBC using aCMAQ model, which was driven by a WRF model and compared them with the observed MBC values. Thecontribution of BC emitted from East Asia to the observed MBC was also estimated from the modelcalculations.P-Observations 2.84 ID:4512 10:30Black carbon air pollution and their environmental impacts in Central IndiaNitin Kumar Jaiswal, K.S. PatelSchool of Studies in Chemistry,Pt. Ravishankar Shukla University, RaipurContact: nitinkjaiswal@hotmail.comBlack carbon has recently emerged as a major contributor to global change, probably second only to CO2 asthe main driver of change. Black carbon (BC) particles strongly absorb the sunlight and generate heat in theatmosphere, which warm the air and can affect regional cloud formation and precipitation pattern. Blackcarbon plays significant role in the atmospheric particulate and thereby the research of carbonaceousparticulate has recently become one of the most favorite topics in field of atmospheric science. The mainregion for its popularity is that carbonaceous particulate represents an extreme diversity within theatmospheric particulates. The winter particulate pollution is severe in several urban parts of India. In theiCACGP-IGAC 2010 14 July, 2010