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http://dx.doi.org/10.15269/JKSOEH.2016.26.2.219

Exposure Assessment to Asbestos and Diesel Engine Exhaust Particulate Matter in Urban Bus Garage  

Lee, Naroo (Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency)
Yi, Gwangyong (Occupational Safety and Health Research Institute, Korea Occupational Safety and Health Agency)
Publication Information
Journal of Korean Society of Occupational and Environmental Hygiene / v.26, no.2, 2016 , pp. 219-224 More about this Journal
Abstract
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, $15.5{\mu}g/m^3$. 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.
Keywords
asbestos; diesel exhaust; lung cancer; urban bus garage;
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