Survey on Dispersion of Suspended Particulate Matter

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Other Title
  • 浮遊粒子状物質の粒径別個数濃度分布の実測

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Description

<p>In this survey, the dispersion of suspended particulate matter (SPM) was examined. In the previous investigations, SPM was also examined multiple times in several buildings. However, these past examinations were limited to large particles. In this study, smaller SPMs (10nm -10 µm) were investigated by using a portable small size scanning mobility particle sizer (SMPS) and a laser particle counter (LPC). In addition, the volume dispersion was calculated. The results were as follows. 1) the distribution of small size SPM (<1.0 µm) showed a log-normal distribution, 2) larger SPM distributions also approximated a linear function with a slope greater than -3.0, 3) these SPM distributions can be converted into quadratic functions in double logarithms, 4) particles with 200-300 nm diameter account for the highest volume concentration in smaller particles, and 5) the point of inflection appeared to be 1 µm, and this number is approximately one order of magnitude larger than what is generally stated. </p>

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Details 詳細情報について

  • CRID
    1390564238088855296
  • NII Article ID
    130007642500
  • DOI
    10.18948/shase.43.254_59
  • ISSN
    24240486
    0385275X
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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