黄砂粒子の化学成分の変質 Chemical Modification of Kosa Particles

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著者

    • 溝畑 朗 MIZOHATA Akira
    • 大阪府立大学先端科学研究所基礎科学部門 Research Institute for Advanced Science and Technology, University of Osaka Prefecture
    • 伊藤 憲男 ITO Norio
    • 大阪府立大学先端科学研究所基礎科学部門 Research Institute for Advanced Science and Technology, University of Osaka Prefecture

抄録

Size-separated particulate matter samples were collected during the largest Kosa phenomenon in scale observed at Sakai, Osaka in 1990. Obtained samples were investigated by instrumental neutron activation analysis and ion chromatography. Concentrations of nitrate (NO<SUB>3</SUB><SUP>-</SUP>) and sulfate(SO<SUB>4</SUB><SUP>2-</SUP>) found in coarse particles were related with the particle size. In consequence of quantitative analysis, it became clear that both NO<SUB>3</SUB><SUP>-</SUP> and SO<SUB>4</SUB><SUP>2-</SUP> distributed mostly in a surface layer of Kosa particles. It is satisfactory to consider NO<SUB>3</SUB><SUP>-</SUP> as being due to Ca(NO<SUB>3</SUB>)<SUB>2</SUB> formed by the reaction of HNO<SUB>3</SUB> of the atmosphere and Ca contained in Kosa particles. On the other hand, we can conclude that SO<SUB>4</SUB><SUP>2-</SUP> is due to fine (NH<SUB>4</SUB>)<SUB>2</SUB>SO<SUB>4</SUB> particles absorbed on the surface of the Kosa particles.

収録刊行物

  • エアロゾル研究 = Journal of aerosol research  

    エアロゾル研究 = Journal of aerosol research 10(2), 127-134, 1995-06-20 

    日本エアロゾル学会

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各種コード

  • NII論文ID(NAID)
    10002686564
  • NII書誌ID(NCID)
    AN10041511
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09122834
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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