수계 내 잠정유해물질의 거동 및 오염 영향 연구

Abstract

To manage the river contamination, many researchers have measured the concentration of the hazardous compounds regularly. But, it spends much of the labor force and time to monitor. In this study, we tried to develop the technology to estimate the contamination route of the specific hazard compounds and the area that the contaminant sources seem to be located. It was also implemented to calculate the degree of contamination contribution by specific compounds. In this study, 4-nitrophenol and DNOC were selected and simulated using the monitoring data and HydroGeoSphere model. This study was performed for calculating the load using the concentration and simulated flow rate, simulating the route and distribution of the compounds, and calculating the contribution rate at the downstream of sampling points. The calculated loads using the measured concentration and the simulated flow rate showed that 4-nitrophenol and DNOC seemed to flow out from similar sources. And, it was estimated that the contamination in 2015 was more severe than 2013. The simulation indicated that the concentration of the tributaries has been found to have little effect on the concentration of mainstream. The contaminants in Geumho river were assumed to be attributed by the potential sources distributed in upstream area. Therefore, it seemed to need the systematic management about the upstream area. Using a numerical model reflecting the flow rate is useful to understand the distribution and transports of contaminants. The result can be used to estimate the contamination routes and potential sources.