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Journal of the Korean Society of Hazard Mitigation 2012;12(6):351-358.
Published online December 31, 2012.
금강유역 비점오염원 모니터링을 통한 토지이용별 강우-EMC 상관성 분석
이정호, 박수영, 김동호, 이영준, 박무종
Correlation Analysis between Rainfall and EMC by Land Use Types based on Monitoring of Nonpoint Source Pollution in Geum River Basin
Jung Ho Lee, Suyoung Park, Dongho Kim, Young Joon Lee, Moo Jong Park
Abstract
During the dry periods, many types of pollutants are being accumulated on the land surface and the accumulated various pollutants are inflowing in th the near watershed areas for the rainfall periods. Then, the monitoring study needs to analysis of the pollutant loads and an establishment of a management plan for nonpoint source. In this study, a field monitoring was conducted in order to find out the discharge characteristics of nonpoint source pollutants in Geum river basin. Event Mean Concentration (EMC) of $BOD_5$, SS was calculated based on the monitoring data of 56 rainfall events at 7 monitoring points. The land use of the studied basins were divided into forested land and grassland. As the results, a significant relationship was observed from the correlation between EMCs and rainfall characteristics. The present study is achieved to provide the correlation between rainfall events and nonpoint source pollutants. And the data which were build up in this study will contribute to establish the management policy for the nonpoint source pollutants.
Key Words: Nonpoint Souce; Monitoring; Land use; correlation
요지
건기시 다양한 오염물들은 지표에 축적되며, 축적된 오염물들은 강우 발생 시 유역 수계를 거쳐 유출로 발생하게 된다. 이러한 비점오염물질의 분석 및 이에 대한 관리 계획의 수립을 위해서는 모니터링에 관한 연구가 반듯이 필요하다. 본 연구에서는 금강유역에서의 비점오염원 유출특성을 분석하기 위하여 모니터링을 실시하였으며, 총 7개 지점에서 56회의 강우 사상에 따른 $BOD_5$ 및 SS의 EMC(Event Mean Concentration)를 산정하였다. 이때 조사 대상 유역의 토지이용상태는 산림지역과 초지지역으로 구분되었으며, 모니터링 결과 각 비점오염물질별 EMC와 강우특성 간의 상관성이 분석되었다. 본 연구를 통하여 축적된 이상의 데이터는 향후 비점오염원에 관한 관리 정책 수립에 기여할 것으로 판단된다.
핵심용어: 비점오염원; 유출특성; 모니터링; 상관성


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