Observations of aerosol-bound ionic compositions at Cheju Island, Korea

Ki Hyun Kim, Meehye Lee, Gangwoong Lee, Yong Pyo Kim, Yong Hoon Youn, Jong Min Oh

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


To investigate the regional cycle of aerosols and their ionic constituents, three field intensive campaigns were conducted during fall and winter of 1997 and spring of 1998. The concentrations of most ionic species were found to decrease significantly across fall, winter, and spring such that the sum for all cation (and anion) species of each season is computed as: 193 > 96 > 73.7 nequiv m-3 (and 240 > 104 > 51.5 nequiv m-3). To examine the fundamental characteristics of aerosol compositions in the study area, we conducted correlation analysis in various manners. The results indicated that the concentrations of major ionic species were strongly affected by some meteorological parameters including wind speed. It was also seen that relative strengths of correlations between important parameters (e.g., between wind speed and most of major inorganic species) maintain close relationships with the factors associated with the air mass origin. In addition, the results of factor analysis indicated the existence of at least three major sources in the study area which include: sea-salt aerosol, secondary aerosol, and organic aerosol component. The springtime occurrence of unexpectedly low concentrations of most ionic constituents is found to sensitively reflect the influence of the inflow of southeasterly winds that prevailed during spring, while it is not common for that season of the year. Because most of those changes are closely tied with the variabilities in the regional circulation patterns for each measurement period, assessment of the ionic composition in concert with the temporal variations of meteorological conditions provided valuable insights into the source signals of different air masses that passed by the study area.

Original languageEnglish
Pages (from-to)317-327
Number of pages11
Issue number3
StatePublished - 2002

Bibliographical note

Funding Information:
Special acknowledgement goes to Professor J.W. Winchester at Florida State University and an anonymous reviewer for their constructive criticism on our initial version of the draft. This research was supported by the Korean Research Foundation (KRF) grant (KRF-2000-015-DP0453).


  • Aerosols
  • Anthropogenic
  • Chloride
  • Ion
  • Natural
  • NSSS
  • Sea salt
  • Wind rose


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