Development of PM<SUB>2.5</SUB> Impactor for the Conventional High-Volume Air Sampler

DOI Web Site 2 Citations 8 References
  • Kaneyasu Naoki
    National Institute of Advanced Industrial Science and Technology

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  • ハイボリューム・エアサンプラー用PM<SUB>2.5</SUB>インパクター(HVI<SUB>2.5</SUB>)の開発
  • ハイボリューム・エアサンプラー用PM2.5インパクター(HVI2.5)の開発
  • ハイボリューム エアサンプラーヨウ PM2 5 インパクター HVI2 5 ノ カイハツ

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A High-Volume Impactor for PM2.5 (HVI2.5) was developed which can be attached to conventional High-Volume air samplers with 20.3×25.4 cm aerosol filter. Its simple structure results in a light weight (<1 kg) and compact size, therefore, it can be easily handled and operated in field measurements. Another advantage of the HVI2.5 is that the operator can observe the aerosol-loaded filter through a transparent side wall. In a preliminary test to determine its size separation characteristics using ambient aerosols, the HVI2.5 successfully yielded a 50% cut-off aerodynamic diameter of 2.5 μm at the flow rate of 740 L min-1.

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