Characterization of Atmospheric Aerosols Scavenged by Rain Water

강수에 의한 대기 에어로졸 입자의 세정특성

  • ;
  • ;
  • Mikio Kasahara
  • 박정호 (경도대학 원자에너지연구소) ;
  • 최금찬 (동아대학교 환경공학과) ;
  • Published : 1996.06.01


In order to study the scavenging mechanism as a final goal, the characteristics of chemical components in the rain water were examined as a function of the amount of rainfall. The rain drops were collected sequentially with a rainfall interval amount of each 0.1 .sim. 0.5 mm from the beginning of rain. Rain water was separated into the soluble and insoluble components and the concentrations of 15 elements in both components were determined by the PIXE analysis. The elemental cencentrations decreased quickly till about 0.3 .sim. 0.5 mm of rainfall was obtained and then decreased gradually afterward. Fe, Ti, and Si in the aerosol particles caught in rain water were in high insoluble state. In contrast, almost whole of S and Cl were dissolved in rain water.



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