Environmental Isotope-Aided Studies on River Water and Ground Water Interaction in the Region of Seoul Part I: Isotope Hydrology of the Shallow Alluvial Aquifer Han R. Valley

동위원소를 이용한 서울 지역의 강수와 지하수와의 상호연관성에 관한 연구 제 1 보 : 동위원소를 이용한 한강류역 충적대수층 지하수의 수문학적 연구

  • Jong Sung Ahn (Korea Advanced Energy Research Institute) ;
  • Jae Sung Kim (Korea Advanced Energy Research Institute) ;
  • You Sun Kim (Korea Advanced Energy Research Institute) ;
  • Peter Airey (Australian Atomic Energy Commission-Research Establishment) ;
  • Bryan Payne (International Atomic Energy Agency)
  • Published : 1981.06.01


A preliminary study of the isotope hydrology of the Han River Valley is presented. This investigation is part of a project whose overall aim is to relate the levels of heavy metal ions to the dynamics of the groundwater movement in order to establish (i) whether there is any evidence for the deterioration in groundwater quality associated with the release of industrial effluents and (ii) if so, to determine the migration path-ways. Evidence is adduced that the recharge mechanism is principally determined by the degree of urbanisation. In the metropolitan area of Seoul, river recharge dominates probably due to the combined effects of reduced infiltration and increased pumpage. In the inter-urban region, the major source of recharge is local precipitation. During the spring sampling period when the river levels were low. evidence was obtained for appreciable groundwater infiltration in the vicinity of the upstream transect. No significant correlations were observed between the levels of heavy metals in the groundwater, and the recharge mechanism, the distance from the river or the electrical conductivity of the samples.