Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Reduction of Particulate Matters Levels in Railway Cabins in Korea

  • Park, Duck-Shin (Eco-Transport Research Division, Korea Railroad Research Institute) ;
  • Kwon, Soon-Bark (Eco-Transport Research Division, Korea Railroad Research Institute) ;
  • Cho, Young-Min (Eco-Transport Research Division, Korea Railroad Research Institute) ;
  • Park, Eun-Young (Eco-Transport Research Division, Korea Railroad Research Institute) ;
  • Jeong, Woo-Tae (Eco-Transport Research Division, Korea Railroad Research Institute) ;
  • Lee, Ki-Young (Department of Environmental Health and Institute of Health and Environment, Graduate School of Public Health, Seoul National University)
  • Received : 2011.12.29
  • Accepted : 2012.02.20
  • Published : 2012.02.29
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Abstract

Objectives: High concentrations of airborne particulate matters (PM) can affect the health of passengers using public transportation. The objectives of this research were to develop a PM control system for a railway cabin and to evaluate the performance of the device under conditions of an actual journey. Methods: This study measured the concentrations of $PM_{10}$ and $PM_{2.5}$ simultaneously in a reference cabin and a cabin with the PM control device. Results: The average $PM_{10}$ concentration in the reference cabin was 100 ${\mu}g/m^3$, and the $PM_{10}$ concentration in the cabin with the control device was 79 ${\mu}g/m^3$. While the overall control efficiency of the control device was 15.4%, reduction was more effective for peak $PM_{10}$ concentration. However, $PM_{2.5}$ levels did not differ greatly between the reference cabin and the cabin with the control device. The ratio of $PM_{2.5}$ to $PM_{10}$ was 0.37. $PM_{10}$ concentrations in cabins were not associated with ambient concentrations, indicating that the main sources of $PM_{10}$ were present in cabins. Additionally, average $CO_2$ concentration in the cabins was 1,359 ppm, less than the maximum of 2,000 ppm set out by the Korean Ministry of Environment's guideline. The $CO_2$ concentration in cabins was significantly associated with the number of passengers: the in-cabin concentration = $23.4{\times}N+460.2$, where N is the number of passengers. Conclusions: Application of the PM control device can improve $PM_{10}$ concentration, especially at peak levels but not $PM_{2.5}$ concentration.

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References

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