大阪における硫酸塩濃度の経年変化 -1986年から1995年の連続観測結果について- Concentration Variation of Atmospheric Sulfate Observed at Sakai, Osaka from 1986 to 1995

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著者

    • 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, Osaka Prefecture University
    • 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, Osaka Prefecture University

抄録

In this paper we describe the results of a long-term observation on the particulate sulfate in the atmosphere over Sakai, Osaka, Japan. Since 1986 an atmospheric particulate sample has been collected daily on the quartz fiber filter in the urban area of Sakai. After extracting ultrasonically water soluble materials from the obtained sample into deionized distilled water, concentrations of sulfate and so on were determined by applying ion chromatography method. Monthly mean concentrations of non-sea salt (nss-) and sea salt (ss-) sulfate for a period of ten years from January 1986 to December 1995 were estimated from the observed concentrations. Using the least squares method, we determined the coefficient values of the linear function expressing concentration variation of nss-sulfate for the period of ten years. Although the rate is considerably different with the month, the concentration of nss-sulfate for each month has an increasing tendency. Consequently the concentration of nss-sulfate was increasing annually at the rate of 0.22 ± 0.05 μg/m<SUP>3</SUP>, and its annual mean varied from 3.5 to 5.7 μg/m<SUP>3</SUP> for these ten years. It can be considered that this cause is the remarkably increasing emission of sulfur dioxide in China.

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 13(4), 343-353, 1998-12-20 

    日本エアロゾル学会

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各種コード

  • NII論文ID(NAID)
    10002783179
  • NII書誌ID(NCID)
    AN10041511
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09122834
  • NDL 記事登録ID
    4628952
  • NDL 雑誌分類
    ZP5(科学技術--化学・化学工業--化学工学)
  • NDL 請求記号
    Z17-1062
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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