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KMID : 1024520210300030279
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Journal of the Environmental Sciences
2021 Volume.30 No. 3 p.279 ~ p.287
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Analysis Case of Deposited Dust Particles using SEM/EDX Analysis
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Ha Eun-Ji
Park Jeong-Ho
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Abstract
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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.
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KEYWORD
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SEM/EDX, Deposited dust, Hadong-gun, Particle groups
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