A Study On Chemical Characteristics Of Aerosol Composition At West Inflow Regions In The Korean Peninsula I. Characteristics Of Pm Concentration And Chemical Components

HR-ToF-AMS was applied for a seasonal and size-distributional measurements for inorganic (SO42-, NO3-, NH4+, Cl-) and organic components in Baegryung Island Super Site. The average concentration of PM1.0 remarks 12.9 mu g/m(3) while 14.5 mu g/m(3) in Spring time, 14.2 mu g/m(3) in Winter, 13.1 mu g/m(3) in Summer and 9.86 mu g/m(3) in Autumn. The mass of measured PM1.0 shows 54.6% of PM2.5 which is similar to those of Beijing and Lanzhou, China. The highest portion of Chemical composition is SO42- marking 41.0%, 31.8% by organics, 13.5% by NH4+, 12.8% by NO3 and 1% by Cl-. In every seasons, except winter, SO42- remarks the highest level, organic components take place the highest in winter time. The size-distribution of PM1.0 components scattered at accumulation mode of 200 nm similar to 800