方位別大気浮遊粉塵収集装置の製作とその応用(B. 生活科学)

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タイトル別名
  • 方位別大気浮遊粉塵収集装置の製作とその応用
  • ホウイベツ タイキ フユウ フンジン シュウシュウ ソウチ ノ セイサク ト
  • Development and Application of a Directional Sampling Apparatus for Airborne Dust (B. LIVING SCIENCE)

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抄録

A microcomputer aided 4-directional airborne dust sampling appartus has been developed. The apparatus consists of three parts, 1) digital wind vane and anemometer for wind data sensor, 2) 4-head low volume airsampler mounted with millipore filters and 3) 8-bit microcomputer for wind data processing and controling electromagnetic valves of the sampler. Airborne dust were collected over four days for each measurement. The wind direction and speed data were sampled at every ten seconds and used to switch the active head of the airsampler. Mass concentrations were measured by weighing. Elemental concentrations were obtained by instrumental neutron activation analysis. Mass and elemental concentrations show significant dependences on wind direction.

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