Korean Journal of Environmental Agriculture (한국환경농학회지)
- Volume 11 Issue 1
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- Pages.26-40
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- 1992
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- 1225-3537(pISSN)
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- 2233-4173(eISSN)
Environmental Isotope - Aided studies on Sea Water contamination of Eastern Coastal Aquifer in Cheju Island
환경동위원소(環境同位元素)를 이용(利用)한 제주동부지역(濟州東部地域) 대수층(帶水層)의 해수오염(海水汚染)에 관(關)한 연구(硏究)
- Ahn, Jong-Sung (Korea Atomic Energy Research Institute) ;
- Kim, Sun-Joon (Hanyang University, Department of Mineral and Petroleum Engineering) ;
- U, Zang-Kual (Applied Radioisotope Research Institute, Cheju National University) ;
- Song, Sung-Jun (Applied Radioisotope Research Institute, Cheju National University)
- Published : 1992.06.30
Abstract
Cheju Island formed by Quarternary volcanism provides highly permeable hydrogeological environment. To meet the increasing demand of water in the island, many groundwater wells have been developed. The environmental isotopes(oxygen-18, deuterium, tritium) and chemical analysis of water samples from the eastern part of the island were carried out to ascertain whether groundwater in the eastern part of the island was contaminated by sea water. The result of tritium analysis indicated fast infiltration of meteoric water into underground and rapid mixing process between rain water and groundwater. The results of oxygen-18 and deuterium analysis demonstrated that most of the wells in the eastern part of the island were influenced by sea water intrusion. Chemical analysis of water samples revealed that most groundwater in study area were classified into Na-Cl type and showed high chloride/bicarbonate ratios. Sea water intrusion in the northeastern part of the island has proceeded at least 3 km within the coastaline, and in the south eastern part about 700m.
제주도 동부지역 대수층의 지하수에 대해 환경동위원소(산소-18, 중수소 및 삼중수소)의 조성 및 화학적특성을 구명하였다. 이 지역의 지하수에 대한 동위원소의 조성을 제주서부지역의 순수한 지하수와 연안의 해수와 비교한 결과 지하수에의 해수침투현상이 밝혀졌으며 음
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