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Rapid Changes in CO Concentration Levels at Seven Roadside Locations in Seoul before and after 2000

  • Kim, Ki-Hyun (Department of Environment & Energy Sciences, Sejong University) ;
  • Shon, Zang-Ho (Department of Environmental Engineering, Dong-Eui University) ;
  • Park, Chan-Goo (Seoul Metropolitan Institute of Public Health and Environment) ;
  • Jeon, Eui-Chan (Department of Environment & Energy Sciences, Sejong University) ;
  • Kim, Jo-Chun (Department of Environmental Engineering, Konkuk University) ;
  • Choi, Kum-Chan (Department of Environmental Engineering, Dong-A University)
  • Received : 2010.01.18
  • Accepted : 2010.04.07
  • Published : 2010.06.30

Abstract

Concentrations of carbon monoxide (CO) in air were analyzed from seven urban roadside (U-RS) stations in Seoul, Korea over an 11-year period (1998-2008). As noticeable changes in CO levels coincided with the Natural Gas Vehicle Supply (NGVS) program in the year 2000, its concentration data were examined between 1998-2000 (period I) and 2001-2008 (period II). The mean values of CO from all 7 stations for the whole study period were recorded as $1.19{\pm}0.22$ ppm with large drops in its mean from $1.83{\pm}0.43$ ppm in period I to $0.94{\pm}0.21$ ppm in period II. As such, CO levels between the two periods undertook the mean reduction rate of $46.9{\pm}16.2%$ (range of 18.3 to 59.9%). According to the analysis of longterm trends of CO, its concentrations in the U-RS stations decreased very rapidly with the annual mean reduction rate of 9.5% $yr^{-1}$. A line of evidence collected in this study suggests that the implementation of the NGVS program has been quite effective to induce the alterations in CO levels in all urban roadside locations throughout the city of Seoul.

Keywords

References

  1. Boddy, J.W.D., Smalley, R.J., Goodman, P.S., Tate, J.E., Bell, M.C., Tomlin, A.S. (2005) The spatial variability in concentrations of a traffic-related pollutant in two street canyons in York, UK-Part II: The influence of traffic characteristics. Atmospheric Environment 39, 3163-3176. https://doi.org/10.1016/j.atmosenv.2005.01.044
  2. Chan, L.Y., Lau, W.L., Zou, S.C., Cao, Z.X., Lai, S.C. (2002) Exposure level of carbon monoxide and respirable suspended particulate in public transportation modes while commuting in urban area of Guangzhou, China. Atmospheric Environment 36, 5831-5840. https://doi.org/10.1016/S1352-2310(02)00687-8
  3. Cofala, J., Amann, M., Klimont, Z., Kupiainen, K., Hoglund- Isaksson, L. (2007) Scenarios of global anthropogenic emissions of air pollutants and methane until 2030. Atmospheric Environment 41, 8486-8499 https://doi.org/10.1016/j.atmosenv.2007.07.010
  4. Gokhale, S., Pandian, S. (2007) A semi-empirical box modeling approach for predicting the carbon monoxide concentrations at an urban traffic intersection. Atmospheric Environment 41, 7940-7950. https://doi.org/10.1016/j.atmosenv.2007.06.065
  5. Jo, W.-K., Park, J.-H. (2005) Characteristics of roadside air pollution in Koran metropolitan city (Daegu) over last 5 to 6 years: Temporal variations, standard exceedances, and dependence on meteorolotical conditions. Chemosphere 59, 1557-1573. https://doi.org/10.1016/j.chemosphere.2004.12.021
  6. Kang, K.K. (2004) Environmental policies for fuel switching. Korea Environmental Policy Bulletin 2(1), 1-19.
  7. KMOE(Korean Ministry of Environment) (2008) Environmental Statistics Yearbook 2008, pp. 122.
  8. Nguyen, H.T., Kim, K.-H., Ma, C.-J., Cho, S.-J. (2010) Long-term study of CO and $CH_4$ behavior at an urban roadside and urban background locations in Seoul, Korea. Environmental Research 110, 396-409. https://doi.org/10.1016/j.envres.2010.03.002
  9. Pandey, S.K., Kim, K.-H., Chung, S.-Y., Cho, S.-J., Kim, M.-Y., Shon, Z.-H. (2008) Long-term study of $NO_x$ behavior at urban roadside and background locations in Seoul, Korea. Atmospheric Environment 42, 607-622. https://doi.org/10.1016/j.atmosenv.2007.10.015
  10. Singh, A., Gangopadhyay, S., Nanda, P.K., Bhattacharya, S., Sharma, C., Bhan, C. (2008) Trends of greenhouse gas emissions from the road transport sector in India. Science of the Total Environment 390, 124-131. https://doi.org/10.1016/j.scitotenv.2007.09.027
  11. Yli-Tuomi, T., Aarnio, P., Pirjola, L., Makela, T., Hillamo, R., Jantunen, M. (2005) Emissions of fine particles, $NO_x$, and CO from on-road vehicles in Finand. Atmospheric Environment 39, 6696-6706. https://doi.org/10.1016/j.atmosenv.2005.07.049
  12. Zhao, L., Wang, X., He, Q., Wang, H., Sheng, G., Chanb, L.Y., Fua, J., Blakec, D.R. (2004) Exposure to hazardous volatile organic compounds, $PM_10$ and CO while walking a long streets in urban Guangzhou, China. Atmospheric Environment 38, 6177-6184. https://doi.org/10.1016/j.atmosenv.2004.07.025

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