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KMID : 0366519960160010113
Annual Bulletin Seoul Health
1996 Volume.16 No. 1 p.113 ~ p.120
Monitoring of the Atmospheric Aerosol Components at Sungnam City
Yoo Young-Sik

Abstract
The aim of this study was to characterize atmospheric aerosol suspended in Sungnam City. Atmospheric suspended aerosol were collected by high-volume and Andersen air sampler from Mar. 1994 to Feb. 1995. Organic components were extracted by ultrasonication with benzene-ethanol(4:1). Seven metals used as indicators of emitting sources were analyzed by atomic absorption method for Na, Zn, Pb and Ni, aluminon method for Al, and ammonium molybdate method for Si. Monthly average concentrations of total suspended particulates(TSP) had a range of 110.2~264.3§¶/§© and annual average value was 198.9§¶/§©, exceeded 150§¶/§© which is allowed long-term environmental standard value. Low and high values were shown during summer and winter, respectively. Due to the yellow sand phenomena, the highest value was shown in April. Annual average concentration of PM-10 was 57.1§¶/§©, 28.7% of TSP. As to aerosol-size distribution, the typical bimodal-type distribution with a division point of 2¥ìm size was observed. During the period of Apr. ~Sep. the major particle size was bigger than 2 ¥ìm due to the natural emissions and that was smaller than 2 ¥ìm due to the anthropogenic emissions during period of Oct.~Feb. Extracted organic components consisted of 24.2% by weight. The lowest concentration of organic extracts was shown in Apr. which had highest TSP concentration due to yellow sand phenomena. Concentrations of Si and AI occurred from soil and sand naturally had a range of 2.3~8.5 and 0.8~2.8§¶/§©, respectively. That of Na emitted from sea spray was 0.3-0.7§¶/§© without seasonal variation and those of V and Ni, emitted from petroleum use were 11~32 and 3~11ng/§© with the property of winter-high. Concentration of Pb, emitted from automobiles was 0. 22-0.59§¶/§© and that of Zn was 0.6-2.2§¶/§©
KEYWORD
Atmospheric Aerosol, Total Suspended Particulate, PM-10
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