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KMID : 1024520040130121067
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Journal of the Environmental Sciences
2004 Volume.13 No. 12 p.1067 ~ p.1078
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Size Distribution of Water-Soluble Ionic Components in the Atmospheric Aerosols Collected in Jeju City, Korea
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Hu Chul-Goo
Song Jeong-Hwa
Lee Ki-Ho
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Abstract
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Atmospheric particulate matters were collected by 8-stage non viable cascade impactor from October 2002 to August at Jeju City. Eight water-soluble ionic components were analyzed by Ion Chromatography. The concentration of particulate matters and eight water-soluble ionic components were determined to investigate their size distributions. Particulate matters exhibited a tri-modal distribution with peak value around In summer, the last peak value was lower than other season values likely due to particulate matter scavenged by rain water. Four ionic components exhibited a bi-modal distribution in the coarse mode whereas three ionic components in the fine mode, with maximum peak value around was found in both the coarse and the fine mode. The enrichment factor (E.F.) of each ionic components was calculated. Based upon E.F., it is considered that in coarse paricle mode were delivered form oceanic source, but other components might have other source origins.
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KEYWORD
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Atmospheric particulate matters, Water soluble ionic components, Particle size distribution, Jeju city
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