강우시 및 비강우시 수질 모니터링을 통한 도암호 탁수 발생 원인 분석

초록

The Doam Lake watershed is one of the non-point source management areas announced by the Ministry of Environment, and is a constant problemfor the stream ecosystem dut to Storm water. In this study, a total of 48(rainfall) and 47(non-rainfall) sites were investigated for the entire watershed(Samyangcheon, Chahangcheon, Hoenggyecheon, Yongpyeongcheon, Songcheon, Lake Doam) on August 15, 2019 and on October 18, 2019 to estimatethe source of turbid water in the Doam Lake watershed. Subsequently, water quality analysis was performed on Suspended Soild (SS), Turbidity, TotalPhosphorus (TP), Total Nitrogen (TN), and Biochemical Oxygen Demands (BOD) and correlation among water quality parameters was analyzed basedon the analyzed samples. As a result, most of the turbid water generated during rainfall was in highland fields. During rainfall, Hoengyecheon had thehighest average SS concentration among all streams, and during non-rainfall, the average SS concentration was highest in Yongpyeongcheon, so thetwo stream were selected as vulnerable areas. However, since Yongpyeongcheon may be a temporary phenomenon due to river construction, additionalcontinuous monitoring is required. Therefore, in the Doam Lake watershed, intensive management is required for vulnerable areas.

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