Impacts of Urban Green Spaces on Air Quality

도심지역 녹지의 국지적 대기환경영향에 관한 연구

  • Received : 2009.03.10
  • Accepted : 2009.04.06
  • Published : 2009.06.30

Abstract

This study was to find out the quantitative relation between urban treed area(neighborhood parks) and the atmosphere environment in real condition, focusing the gas-phase non-reacting air pollutants(SOx and NOx) decreasing function of trees in urban area. It also developed a quantitative analysis method for evaluation of the atmosphere influence in the type of treed areas. We set up the Pagoda Park in Seoul and its neighbourhood as a modelling area to analyse air quality impacts by urban neighbourhood park trees. From the modelling result of the Pagoda Park case study, it is concluded that urban neighbourhood park has an important meaning to suppress construction of emission sources which drive the urban polluted air quality worse, even though park's trees have relatively small air purifying function. Especially in the urban area severely contaminated by air pollutants, the first considered air quality management policy is conservation of green spaces in neighborhood park.

본 연구는 도심녹지의 대기질 영향을 정량적으로 해석하기 위해 수행되었다. 도심의 '근린공원 녹지'가 가스상 오염물질인 '질소산화물'과 '황산화물'에 미치는 영향을 분석하였으며, 이를 위해 녹지의 대기환경영향평가 모델링시스템이 개발되었다. 모델링은 서울 도심의 대표적 근린공원이라 할 수 있는 종로구의 파고다 공원 인근지역을 대상으로 수행되었다. 모델링 결과, 도시 근린공원의 수목은 자체적으로 오염물질을 흡수 제거하여 대기질을 개선시키는 기능이 크다고는 볼 수 없지만, 상대적으로 친환경적인 토지이용형태(배출원이 거의 없고, 해당지역 및 주변지역에서 원활한 기류소통 촉진)를 유지함으로서 대기환경 악화를 억제하는 효과는 탁월한 것으로 나타났다. 대기오염이 심한 도시지역에서의 대기정책은 오염원 추가건설 제어를 위한 녹지보호정책을 우선적으로 고려해야 할 것으로 판단된다.

Keywords

References

  1. Joo, H. S., Kim, S., Choi, S. and Bae, S., "Impacts of Green Spaces on Air Quality," Korea Environment Institute(2005)
  2. Jun, Y., McBride, J., Zhou, J. and Sun, J., "The Urban Forest in Beijing and Its Role in Air Pollution Reduction," Urban Forestry & Urban Greening, 3, 65-78(2005) https://doi.org/10.1016/j.ufug.2004.09.001
  3. Shuji, F., Cha, H., Kagi, N., Miyamura, H. and Kim, Y. S., "Effects on Air Pollutant Removal by Plant Absorption and Adsorption," Building and Environment, 40, 105-112(2005) https://doi.org/10.1016/j.buildenv.2004.04.015
  4. McPherson, E. G. and Simpson, J. R., "Reducing Air Pollution Through Urban Forestry," California Forest Pest Council(1999)
  5. Nowak, D. J., "The Effects of Urban Trees on Air Quality," USDA Forest Services(1995)
  6. Jeon, M., Seong, H., Chang, Y., Hong, M., Cho, S., Cho, K., Lee, S. and Park, J., "GyeongGi's Implementation Plan 21 Century: Air Quiality," GyeongGi-Do(1999)
  7. Kim, S. and Lee, C., "Study of Environmental Impacts on Green-Belt Area(2): Air Quality," The Ministry of Land, Transport and Maritime Affairs(1999)
  8. Weiringa, J., "Representative Roughness Parameters for Homogeneous Terrain, " Boundary-layer Meteorology, 63, 323-363(1993) https://doi.org/10.1007/BF00705357
  9. Bottema, M., "Urban Roughness Modelling in Relation to Pollutant Dispersal", Atmospheric Environment, 31, 3059-3075(1997) https://doi.org/10.1016/S1352-2310(97)00117-9
  10. Macdonald, R. W., "Modelling the Mean Velocity Profile in the Urban Canopy Layer," Boundary-layer Meteorology, 97, 25-45(2000) https://doi.org/10.1023/A:1002785830512
  11. Allwine, K. J., Shinn, J. H., Streit, G. E., Lawson, K. L. and Brown, M., "A Multiscale Field Study of Dispersion Through an Urban Environment," Bulletin of the American Meteorological Society, 83(4), 521-536(2002) https://doi.org/10.1175/1520-0477(2002)083<0521:OOUAMF>2.3.CO;2
  12. Hanna, S.R. and Britter, R. E., "Wind Flow and Vapor Cloud Dispersion at Industrial and Urban Sites," Center for chemical process safety of the American Institute of chemical engineers(2002)
  13. Pollen, J., Boris, J. P., Young, T., Patnaik, G. and Iselin, J., "A Comparision of Contaminant Plume Statistics from a Gaussian Puff and Urban CFD Model for Two Large Cities," Atmospheric Environment, 39, 1049-1068(2005) https://doi.org/10.1016/j.atmosenv.2004.10.043