| 초록 |
To improve our knowledge of aerosol chemistry and pollutants as function of different locations, the physical and chemical characteristics of atmospheric aerosol was studied in ambient air by using HR-ToF-AMS, PTR-ToF-MS, SMPS and several gas analyzers at the several sites. Study sites include the residential area, the rural environment of high NH3 concentration and high NOx emission on the road. SO2 is an important secondary aerosol precursor in the rural environment of high NH3 concentration in general while the evolution of organics oxidation becomes more important at the residential area during the summer season. The secondary production of NH4NO3 aerosol plays an important role for changing the mass concentration of PM2.5 at the high NOx emission on the road. This talk will review observations from our own work concerning the chemical and physical characteristics of atmospheric aerosol and their sources. |
