Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Characteristics of particles at Kosan, Cheju Island: Intensive study results duting March 11 .sim. 17 1994

제주도 고산지역 입자특성 : 1994년 3월 11일 - 17일 측정결과

  • 김용표 (한국과학기술연구원 환경연구센터) ;
  • 심상규 (한국과학기술연구원 환경연구센터) ;
  • 문길주 (한국과학기술연구원 환경연구센터) ;
  • 백남준 (한국과학기술연구원 환경연구센터) ;
  • 김성주 (한국과학기술연구원 환경연구센터) ;
  • 허철구 (제주대학교 해양환경공학과) ;
  • 강창희 (제주대학교 화학과)
  • Published : 1995.09.01
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Abstract

Characteristics of anbient at Korean, Cheju Island have been studied during the intensive field study period on March 11 .sim. 17, 1994 in collaboration with other research organizations from Korea and abroad. The particle size distribution was measured using an Electrical Aerosol Analyzer(EAA) and an Optical particle Counter(OPC). Fine particles(PM1 and PM3) have been collected by filter pack samplers and their ionic compositions have been analyzed. sampling errors inherent to the filter pack sampling method are discussed and the method to analyze those errors are presented. The rine mass concentrations of this study show very similar mass concentrations when Seoul is clear. This is somewhat surprising result, because the most of researchers believe that Kosan is one of the cleanest area in Korea. Bimodal volume size distributions with peak values around 0.1 .sim. 0.2.mu.m and 3.mu.m in particle dimeter were observed for most of the measurement period, particle mass loadings and ionic composition data show a large fraction of particles are from non-sea salt origins. Estimation of water content and acidity of particles based on measurement by a gas/particle equilibrium model, SCAPE, reveals that the pH values of particles are comparable to or lower than those estimated based on measurements in Los Angeles, U.S.A. during the SCAQS study. These findings with the meteorological conditions during the study period suggest that the particles collected during the period have originated from outside Cheju Island.

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References

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