서울시 일부 지역의 대기 중 미세먼지에 관한 연구
A Study on Airborne Particulate Matter of a Local Area in Seoul
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Abstract
The purpose of this study was to characterize mass concentration of PM10, PM2.5 and metallic composition using Minivol Portable Sampler from May 2003 to May 2004 in metropolitan city, Seoul. Annual average concentration of PM10 were 57.67(±?28.20) mg/m3 and PM2.5 were 42.06(±20.23) mg/m3. The concentration was the highest in winter because persistent thermal inversion and in spring, particulate matter concentration was high because of yellow-sand events. The average PM2.5/PM10 ratio was 0.73. This indicated PM2.5 fraction played a significant role in air pollution. The atmospheric metallic elements in the PM10, PM2.5 came different emission sources such as soil, traffic, industry and resuspended particles. The results showed that average PM10 composition order as Fe>Zn>Pb>Cu>Mn. The metallic elements Zn and Fe were the largest composition in the PM2.5.
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