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A Study on the Characterization of PM$_{2.5}$, PM$_{10}$ Concentration at Asian and Non-Asian Dust in Asan Area  

Chung, Jin-Do (Department of Environmental Engineering, Hoseo University)
Hwang, Seung-Min (Department of Health Environment, Graduate School of Venture, Hoseo University)
Choi, Hee-Seok (A Graduate student at Department of Environmental Engineering, Hoseo University)
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Abstract
The characterization of PM$_{2.5}$ and PM$_{10}$ concentration is considered by analysis of ionic and heavy metal component to measured suspended particle at atmosphere in Hoseo university of Asan area. The variation of concentration is studied at the periods of asian dust occured. In asian dust, the PM$_{2.5}$ ratio is decreased from 79.7% to 40.1%, whereas the size-classified mean concentration of suspended particle is increased largely. It is found that the PM$_{2.5}$ ratio is decreased relatively because the coarse particle is increased largely according to the analysis of the mass concentration to divide the fine and coarse particle on 2.1 $\mu$m basis. It is observed that the Ca$^{2+}$ion is about 40 magnifications and Na$^+$, SO$_4{^{2-}}$ ion is increased in sequence in coarse particle, whereas the variation of ionic concentration is slightly increased in the fine particle. Furthermore, Mn, Fe, Zn, and Al are increased in sequence as the result of heavy metal component analysis, and Al is shown the most increased as mass concentration.
Keywords
Asian Dust; PM$_{2.5}$; PM$_{10}$; Ionic Component; Heavy Metal Component;
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