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

Korean Industrial Hygiene Association (한국산업보건학회)
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Concentration Characteristics of Indoor and Outdoor Airborne Total Fiber Particles and Identification of Asbestos in Gyeongnam Provinces

경남지역의 실내외 공기 중 총섬유 입자의 농도특성 및 석면 입자의 확인

  • Park, Hee-Eun (Departmint. of Environmental Engineering, Gyeongnam National University of Science and Technology) ;
  • Park, Jeong-Ho (Departmint. of Environmental Engineering, Gyeongnam National University of Science and Technology) ;
  • Kim, Hyoung-Kab (Departmint. of Environmental Engineering, Gyeongnam National University of Science and Technology)
  • 박희은 (경남과학기술대학교 환경공학과) ;
  • 박정호 (경남과학기술대학교 환경공학과) ;
  • 김형갑 (경남과학기술대학교 환경공학과)
  • Published : 2012.06.30
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Abstract

Objectives: The aim of this study is to identify concentration characteristics of indoor and outdoor airborne total fiber particles and asbestos in Gyeongnam Provinces. Methods: This study investigated concentration characteristics of indoor fiber particles from 748 schools and 38 public facilities as well as outdoor particles from 11 sites through PCM (phase contrast microscope). SEM/EDX (scanning electron microscope/energy dispersive using X-ray analysis) was used to obtain physicochemical information of asbestos fiber particles. The study identified asbestos rate in the 15 samples from indoor and outdoor airborne total fiber particles. Results: 1. The average indoor airborne concentrations of total fiber particles were $0.0011{\pm}0007$ f/cc in schools and $0.0015{\pm}0007$ f/cc in public facilities by PCM. Over 90% of the fiber particles were identified as single fibers. 2. The average outdoor airborne concentrations of total fiber particles were $0.0007{\pm}0002$ f/cc, and they were lower than those of indoor airborne concentrations. 3. The results showed that the form of asbestiform was diverse as skein of thread like form and long needle, which was relatively narrower than that of glass fiber and rock wool. 4. The results of SEM/EDX analysis of 15 areas where total fiber particle was relatively high showed that the form was rather similar to that of asbestos, but chemical composition was proven to be non-asbestos. Conclusions: The concentration of indoor and outdoor airborne total fiber particles of Gyeongnam Provinces satisfied the IAQ (Indoor air quality) level of 0.01 f/cc and asbestos was not found in most of the samples by SEM/EDX.

Keywords

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