Estimations of the $SO_2$Dry Deposition Flux at Urban Areas in Korea

우리나라 도시지역의 $SO_2$건성침적 플럭스 산출

  • 이종범 (강원대학교 자연과학대학 환경학과) ;
  • 김용국 (강원대학교 자연과학대학 환경학과) ;
  • 박일환 (강원대학교 자연과학대학 환경학과)
  • Published : 2001.02.01

Abstract

This study was carried out estimating the dry deposition flux of $SO_2$at eight urban areas in Korea during one year of 1996. To calculate the deposition flux, deposition velocities were calculated by turbulence parameters estimated from routine meteorological data. Also, hourly averaged $SO_2$concentrations which calculated from air pollution monitoring data of each city were used. The dry deposition velocities were mostly higher in the coastal areas than the other areas, which would be caused by relatively strong wind. And, they were high in the daytime because of turbulence activities. The deposition flux of $SO_2$is mainly related to the atmospheric concentration. The annual average $SO_2$concentration and the deposition flux were 22.62ppb and 1510.52g/$\textrm{km}^2$/hr at Pusan respectively. Also, the flux was higher in winter than other season, which was a significant contribution of exhausted fuel for heating. While the deposition velocity was high to 0.688cm/sec at Yosu in case of strong wind and small cloud cover, the deposition flux was high to 1597.4g/$\textrm{km}^2$/hr at Pusan in case of weak wind and small cloud cover.

Keywords

deposition flux;deposition flux

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