In this study, the composition and morphology of deposited dust particles with size ranging from a few to tens ㎛ were investigated using SEM/EDX (scanning electron microscopy with energy dispersive x-ray spectrometer). Then deposited dust particles were classified into 8 groups: quartz, aluminosilicates, ca-rich, Fe/Ti oxide, carbon-rich, industrial particle, Fe-rich, and biogenic particle. The sources of deposited dust were high in the order of aluminosilicates 41% > biogenic 18% > Fe-rich 11% > quartz and C-rich 8% > industrial 7% > Fe/Ti oxide 5% > Ca-rich 1%. In particular, the ratio of biogenic particles was relatively high due to influence of pollen. The ratio of carbon-rich was 11% at YM site, 10% at MD site, and 4% at MO site, and the site close to the large emission source was high.

Abstract
1. 서 론
2. 재료 및 방법
    2.1. 시료채취
    2.2. 분석방법
    2.3 개별입자의 분류과정
3. 결과 및 고찰
    3.1. 면 분석
    3.2. 점 분석
    3.3. 개별입자들의 8개 그룹분류
4. 결 론
REFERENCES

• 하은지(경상국립대학교 환경공학과) | Eun-Ji Ha (Department of Environmental Engineering, Gyeongsang National University)
• 박정호(경상국립대학교 환경공학과) | Jeong-Ho Park (Department of Environmental Engineering, Gyeongsang National University) Corresponding author