マルチノズルカスケードインパクタを用いて捕集された都市域PM_<2.5>およびPM_1中微量金属濃度の測定と発生源の推定 Measurement and Source Identification of Trace Metals in PM_<2.5> and PM_1 Collected by Multi-Nozzle Cascade Impactor in Tokyo Metropolitan Area, Japan

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著者

    • 奥田 知明 OKUDA Tomoaki
    • 慶應義塾大学理工学部応用化学科 Department of Applied Chemistry, Faculty of Science and Technology, Keio University
    • 勝野 正之 KATSUNO Masayuki
    • 慶應義塾大学理工学部応用化学科 Department of Applied Chemistry, Faculty of Science and Technology, Keio University
    • 田中 茂 TANAKA Shigeru
    • 慶應義塾大学理工学部応用化学科 Department of Applied Chemistry, Faculty of Science and Technology, Keio University
    • 近藤 豊 KONDO Yutaka
    • 東京大学先端科学技術研究センター Research Center for Advanced Science and Technology, University of Tokyo

抄録

PM<SUB>2.5</SUB> and PM<SUB>1</SUB> mass concentrations, and elemental carbon (EC) , organic carbon (OC) , and trace metal concentrations in PM<SUB>2.5</SUB> and PM<SUB>1</SUB> were measured in the Tokyo metropolitan area during winter and summer in 2004. PM<SUB>2.5</SUB> and PM<SUB>1</SUB> were collected by using multi-nozzle cascade impactor (MCI) . Sum of concentrations of elemental carbon and organic compounds accounted for 75 % of PM<SUB>1</SUB> mass concentrations in winter, while it did only 30 % in summer. It was possibly due to the enhancement of photochemical formation of secondary inorganic compounds (mainly sulfate) in summer. Concentration of organic matter (OM) in winter was higher than that in summer; therefore, ambient OM in the sampling site was originated mainly from primary sources. Most of trace metal concentrations were high in winter and low in summer, however, vanadium and nickel concentrations in summer was higher than those in winter. We suggested that one of the reasons of the fact was due to increase of the use of oil fuel for power generation in summer season.

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 22(2), 126-134, 2007-06-20 

    日本エアロゾル学会

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各種コード

  • NII論文ID(NAID)
    10021918228
  • 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
    8866466
  • 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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