한국환경과학회지 (Journal of Environmental Science International)

  • 제33권2호
  • /
  • Pages.113-119
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  • 2024
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  • 1225-4517(pISSN)
  • /
  • 2287-3503(eISSN)
한국환경과학회 (The Korean Environmental Sciences Society)
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개별입자 분석을 위한 대기에어로졸의 시료채취법

Sampling Method for Individual Particle Analysis of Atmospheric Aerosol

  • 천성우 (경상국립대학교 환경공학과) ;
  • 박정호 (경상국립대학교 환경공학과)
  • Seong-Woo Cheon (Department of Environmental Engineering, Gyeongsang National University) ;
  • Jeong-Ho Park (Department of Environmental Engineering, Gyeongsang National University)
  • 투고 : 2023.12.15
  • 심사 : 2024.01.26
  • 발행 : 2024.02.29
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초록

In this study, the most suitable sampling methods for the bimodal mass distribution characteristics and individual particle analysis of atmospheric aerosols were investigated. Samples collected in Quartz, Teflon, and Nuclepore filters were analyzed for individual particles using scanning electron microscopy with an energy-dispersive X-ray spectrometer (SEM/EDS). Then, the pore diameter of the filter and the collection flow rate were determined using the theoretical collection efficiency calculation formula for two-stage separation sample collection of coarse and fine particles. The Nuclepore filter was found to be the most suitable filter for identifying the physical and chemical characteristics of atmospheric aerosols since it was able to separate the sample and count the different sized particles better than either Quartz or Teflon. Nuclepore filters with 8.0 ㎛ and 0.4 ㎛ pores were connected in series and exposed to a flow rate of 16.7 L/min for two-stage separation sampling. The results show that it is possible to separate and collect both coarse and fine particles. We expect that the proposed methodology will be used for future individual particle analysis of atmospheric aerosols and related research.

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참고문헌

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