Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
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Comparison of the Efficiency between a Remodeled Bubble Generating Pumps for an Aquarium Fish and the Existed Commercial Air Sampler for the Sampling of Ambient Air Asbestos

공기 중 석면농도 분석시 관상어용 기포발생기를 개조한 장치와 기존의 상업용 시료 채취기와의 성능 비교

  • Jang, Bong-Ki (Department of Environmental Health Science, Soonchunhyang University) ;
  • Tak, Hyun-Wook (Department of Environmental Health Science, Soonchunhyang University) ;
  • Song, Su-Jin (Department of Environmental Health Science, Soonchunhyang University) ;
  • Jo, Bong-Hyun (Department of Environmental Health Science, Soonchunhyang University) ;
  • Kim, Yeong-Ji (Department of Environmental Health Science, Soonchunhyang University) ;
  • Son, Bu-Soon (Department of Environmental Health Science, Soonchunhyang University) ;
  • Lee, Jong-Wha (Department of Environmental Health Science, Soonchunhyang University)
  • 장봉기 (순천향대학교 환경보건학과) ;
  • 탁현욱 (순천향대학교 환경보건학과) ;
  • 송수진 (순천향대학교 환경보건학과) ;
  • 조봉현 (순천향대학교 환경보건학과) ;
  • 김영지 (순천향대학교 환경보건학과) ;
  • 손부순 (순천향대학교 환경보건학과) ;
  • 이종화 (순천향대학교 환경보건학과)
  • Received : 2014.11.26
  • Accepted : 2014.12.27
  • Published : 2014.12.31
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Abstract

Objectives: The purpose of this study is to estimate the applicability of regional sample collection of environmental samples. The concentration of asbestos fibers were analyzed with two devices. One was an existing commercial air sampling pump that has been proved to be accurate and exact, and the other is a remodeled pump for sample collection which was made from an electric bubble generator originally designed for aquarium fish. Samples were collected with the two devices under the same environmental conditions and collection equipment. A comparative analysis of the concentration of ambient asbestos fiber was then performed. Methods: Based on previous research, six farmhouses with asbestos fiber slate roofs known to have high concentrations of asbestos fiber were selected. Using the existing commercial air sampling pump and the remodeled electric bubble generator, four to seven samples were collected each day one meter downwind from the edge of the slate roof at high volume (about 4 L/min) and low volume (about 1.4 L/min). The analyzer responsible for sample quality control of asbestos fibers counted the number of asbestos fibers with a phase microscope. Results: The rates of flow change of the existed sampler and the remodeled pump at high volume were 0.82% and 0.17%, respectively. The rates of flow change at low volume were 3.83% and 1.09%, but there was not significant difference. The rates of flow change are within the error range (${\pm}5%$) of OSHA analyzing methods. For the high volume sampler, the average asbestos fiber concentration in the air collected by the existed sampler is 6.270 fibers/L and for the remodeled one 5.527 fibers/L, not a significant difference. For the low volume sampler, the average asbestos fiber concentration in the air collected by the existed sampler is 7.755 fibers/L and for the remodeled one 7.706 fibers/L, not a significant difference. The total area of the slate roof of the targeted farmhouse has an effect on the concentration of asbestos fibers in the air from the existing pump and the remodeled one (p<0.01). Conclusions: The sampling function between the existing commercial pump and the remodeled one shows little difference. Therefore, the remodeled pump is considered a pump with a good availability for collecting ambient air asbestos samples.

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