Journal of Environmental Health Sciences (한국환경보건학회지)
- Volume 26 Issue 4
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- Pages.21-28
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- 2000
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- 1738-4087(pISSN)
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- 2233-8616(eISSN)
Determination of Airborne Fiber Size and Concentration in RCF Manufacturing and Processing Factories
세라믹 섬유 제조 및 가공 공정에서 발생된 공기중 섬유의 농도 및 크기 분포
Abstract
Various man-made mineral fibers(MMMF) including refractory ceramic fiber(RCF) have been used widely in industries as insulation materials. The effect of fibrous dust on human health depends on fiber size, concentration (exposure level), and durability in biological system. Therefore, these parameters should be determined to evaluate accurately the potential risk of fibers on human health. The purpose of this study was to characterize the size of airborne fiber and the workers' exposure to airborne fibers in refractory ceramic fiber manufacturing and processing factories. Airborne fibers were collected on 25-mm mixed cellulose ester membrane filters at personal breathing zones, and analyzed by A and B counting rules of the National Institute for Occupational Safety and Health(NIOSH) Method # 7400. The average ratios of the fiber density by B rule to the fiber density by A rule was 0.84. This result indicates that the proportion of respirable fibers (<3
Keywords
- Man-made mineral fibers;
- Refractory ceramic fiber;
- Airborne fiber diameter and length;
- Exposure to airborne fiber