KMID : 1039220160260020219
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Journal of Korean Society of Occupational and Environmental Hygiene 2016 Volume.26 No. 2 p.219 ~ p.224
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Exposure Assessment to Asbestos and Diesel Engine Exhaust Particulate Matter in Urban Bus Garage
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Lee Na-Roo
Yi Gwang-Yong
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Abstract
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Objectives: Lung cancer occurred with worker working in an urban bus garage. A survey was conducted to investigate whether lung cancer had causal relationship with work. Exposure to asbestos and diesel engine exhaust were suspected.
Methods: Airborne asbestos was sampled on membrane filter and analyzed using phase-contrast microscopy. Airborne diesel exhaust was sampled using quartz filter and analyzed with thermal-optical analyzer. Polynuclear aromatic hydrocarbons was sampled using PTFE filter and XAD-2 tube and analyzed with gas chromatography-mass selective detector.
Results: Airborne asbestos concentration was under 0.01 fiber/cc. Worker who warmed up an engine of urban bus for 2 hours was exposed to elemental carbon concentration, 15.5 §¶/§©. Only naphtalene among polynuclear aromatic hydrocarbons was detected.
Conclusions: It was difficult to conclude about worker exposure to asbestos because working hour related asbestos was too short. In reviewing papers, the exposure to asbestos over 0.01 fiber/cc during exchange brake lining was found. It was identified that worker¡¯s occupational exposure to diesel exhaust based on elemental carbon was higher than the other occupational exposure to diesel exhaust.
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KEYWORD
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asbestos, diesel exhaust, lung cancer, urban bus garage
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