肺からの吸入たばこ煙のウォッシュアウト特性 Washout Characteristics of Inhaled Cigarette Smoke from Human Lung

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著者

    • 李 相権 LEE Sang-Gwon
    • 金沢大学大学院自然科学研究科物質化学工学科 Department of Chemical Engineering, Graduate School of Natural Science and Technology, Kanazawa University
    • 大谷 吉生 OTANI Yoshio
    • 金沢大学大学院自然科学研究科物質化学工学科 Department of Chemical Engineering, Graduate School of Natural Science and Technology, Kanazawa University

抄録

Environmental tobacco smoke consists of 85 % of sidestream cigarette smoke and 11 % of exhaled mainstream smoke. In order to prevent non-smokers from passive smoking, exposure to the exhaled mainstream smoke as well as to the sidestream smoke has to be taken into account. In the present work, in order to elucidate the washout characteristics of inhaled smoke from the lung, smoking patterns were measured for the subjects with various vital capacities by using newly devised anemometer, and the particle concentrations and size distributions in the exhaled air were measured with SMPS (Scanning Mobility Particle Sizer, TSI Model 3936) and ELPI (Electrical Low Pressure Impactor, DEKATI Model 24317). As a result, (1) vital capacities of smokers do not affect the inspiration pattern of cigarette smoke, (2) exhaled air from a subject who is breathing room air contains particles with a bimodal distribution, (3) residual particles in the lung are washed out after 20 times of deep breathing, (4) human lung constantly generates particles with a median size smaller than 0.01 μm at the concentration of about 1.6 × 10<SUP>4</SUP> cm<SUP>-3</SUP>, (5) smoke exhaled from the lung has a bimodal distribution with the concentration of about 2.5 × 10<SUP>7</SUP> cm<SUP>-3</SUP>, (6) after smoking, complete washout of residual smoke in the lung requires normal breathing for 20 min.

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 21(3), 247-254, 2006-09-20 

    日本エアロゾル学会

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各種コード

  • NII論文ID(NAID)
    10018250348
  • NII書誌ID(NCID)
    AN10041511
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09122834
  • NDL 記事登録ID
    8516599
  • 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  NDL  J-STAGE 
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