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The Influence of the Asian Dust on the Springtime Distribution of Airborne Lead  

Kim Ki-Hyun (세종대학교 지구환경과학과)
Kang Chang-Hee (제주대학교 화학과)
Lee J. -H (충남대학교 환경공학과)
Choi KC (동아대학교 환경공학과)
Youn YH (기상연구소)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.20, no.6, 2004 , pp. 833-838 More about this Journal
Abstract
The analysis of Pb in both PM$_{2.5}$ and PM$_{10}$ fraction of aerosols was made consecutively for every spring season during four year period of 2001 through 2004. To diagnose the impact of the Asian Dust (AD) on metal concentration levels, we compared our Pb measurement data after dividing the whole data sets into AD and NAD period. The results of our analysis indicated that the concentrations of coarse particles increased significantly during the AD period, whereas an increase in the fine counterpart was of moderate degree. However, when Pb concentrations between AD and NAD were compared, the patterns were quite different. From all particle fractions, the Pb concentrations of NAD were slightly or moderately higher than those of AD. The overall results of our study suggest that an increase in particle concentrations during the AD period can cause a rather slight reduction in Pb concentration levels; this can be explained by the dilution effect associated with the increase of Pb-depleted coarse particles.s.s.
Keywords
Lead (Pb); $PM_{2.5}$; $PM_{10}$; Coarse particle; Fine particle; Asian dust;
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연도 인용수 순위
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