Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Comparison of Air Pollution Characteristics in the Center Lane-Bus Stop and the Surrounding Areas

중앙차선 버스 정류장과 주변지역의 대기오염 특성 비교

  • Lee, Yong-Ki (Gyeonggi-do Institute of Health and Environment) ;
  • Kim, Woong-Soo (Gyeonggi-do Institute of Health and Environment) ;
  • Hong, Soon-Mo (Gyeonggi-do Institute of Health and Environment) ;
  • Shin, Eun-Sang (Department of Environmental Health, DongNam Health University)
  • 이용기 (경기도보건환경연구원) ;
  • 김웅수 (경기도보건환경연구원) ;
  • 홍순모 (경기도보건환경연구원) ;
  • 신은상 (동남보건대학교 환경보건과)
  • Received : 2014.05.21
  • Accepted : 2014.07.31
  • Published : 2014.08.31
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Abstract

The use of bus stop in the center lane has reduced the emissions of exhaust gas on the road due to the improvement of the traffic speed but has caused a health problem for the citizens who are waiting for the bus in the platform, and thus the air pollution control of bus stop in the center lane is emerging as a more important part. This study was conducted to investigate the air pollution degree for the center lane-bus stops in four regions using mobile air measuring vehicle, and to evaluate the characteristics of air pollution by comparing with the data measured at the urban air monitoring site close to the bus stops. In addition, the correlation analysis was performed to analyze the impact to neighboring region by vehicle exhaust gas. The regional mean concentration of nitrogen dioxide in the center lane-bus stops ranged from 0.025 to 0.043 ppm which shows from 2.5 times to 5.3 times higher than the values of urban air monitoring site selected as a control group. The regional mean concentration of ozone in the center lane-bus stops ranged from 0.023 to 0.034 ppm which shows from 3% to 28% lower than the values of urban air monitoring site selected as a control group. The concentrations of nitrogen dioxide and ozone for the sampling regions did not exceed one hour-air quality environmental standard (0.1 ppm). The mean concentration of particulate matter for four center lane-bus stops was $28{\mu}g/m^3$ which shows about 27% higher than the values of urban air monitoring site selected as a control group, and that of particulate matter did not exceed one day-air quality environmental standard ($100{\mu}g/m^3$). In the results of correlation analysis between data from center lane-bus stops and data from urban air monitoring sites, the correlation coefficient (r) of nitrogen dioxide was relatively low as 0.316 to 0.416, and the correlation coefficient was high as the distance was close and vice versa. However, the correlation coefficient of ozone ranged from 0.167 to 0.658 and the correlation coefficient was high as the distance was far and vice versa.

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References

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