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Physical and Chemical Properties of Aerosols under Varying European Influence

机译:不同欧洲影响下气溶胶的理化性质

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In a joint field experiment in Velen, southern Sweden, physical and chemical aerosol properties in air masses with varying degrees of contamination were measured. By means of trajectory calculations the aerosol properties were related to air mass in order to study the influence of different source regions. During the total time period a wide range of air masses passed over the station. Consequently aerosol properties varying by factors between 5 and 1000 were encountered. Maximum light scattering and light absorption occurred at the same time as maximum particle concentrations as well as NH4 and SO4 ionic concentrations. The corresponding trajectories clearly indicated the inflow of air as coming from southeastern or western Europe. For other elements the trajectory analysis pointed to maritime or local Scandinavian sources.

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