In this study, the estimation of non-point source pollutant loads in accordance with the utilization of lands in the area of Hwa-Wong lake was carried out in order to provide basic engineering data for building up the treatment or management faciliti...
In this study, the estimation of non-point source pollutant loads in accordance with the utilization of lands in the area of Hwa-Wong lake was carried out in order to provide basic engineering data for building up the treatment or management facilities applicable to this corresponding area. On the basis of water Qualify and flow measurements at the on-sites around three main streams (Nam-yang, Ja-an and Eo-eun) located in that area, the yearly discharging amount of non-point source pollutants and its contribution rate to the total amount of water pollutants were calculated by applying the effluent coefficients and reasoning equation method incited from references.
It was found that the contribution rates of water pollutants resulted from the non-point sources were 79.2%, 81.4%, and 81.1% for BOD, T-N, and T-P respectively. Because of insufficient measuring data including rainfalls and inaccurate local statistics, in the period of this study, the accuracy on estimations needs to be more studied.