Impact of the Geochemical Characteristics and Potential Contaminants Source of Surrounding Soil on Contamination of a Reservoir in an Island (I) - Evaluation of Potential Liquation by Sediment -

In this research potential liquation of contaminants from surrounding soil to a reservoir in an island was studied to investigate the cause and route of contamination of Baengyeong-myeon reservoir. Soil of Baengyeong-myeon reservoir consists of $SiO_2$ and has a high iron content because of geological characteristics of its country rock. From the field investigation and simulation study it was found that highly accumulated carbon content in the reservoir sediment was incurred from ground water, which provides a good habitat for microbes. And the liquation, the cause of organics growth, occurs mainly on the bottom of the reservoir consisting marine clay layer once used as farmland. So dredging of the sediment of reservoir and replacing with valley soil is suggested to prevent continuous contamination of a reservoir in an island due to COD production.

주변토양의 지구화학적 특성과 잠재적 오염원이 도서지역 저수지의 오염부하에 미치는 영향(I) - 퇴적토에 의한 잠재적 용출특성 평가 -