| Title |
Analysis of Water Qulity changes & Characterization at the Watershed in Han River Basin for Target indicator in TMDLs |
| Authors |
최옥연 ( Ok Youn Choi ) ; 김홍태 ( Hong Tae Kim ) ; 서희승 ( Hee Seung Seo ) ; 한인섭 ( Ihn Sup Han ) |
| DOI |
https://doi.org/10.15681/KSWE.2017.33.1.15 |
| Keywords |
Han river; Mann-kendall test; Nonparametric trend analysis; Seasonal Mann-kendall test; TMDLs |
| Abstract |
Based on the existing pollutant emission standards which are armed at the pollutant concentration of each pollution source, the government formulated and implemented a new management system of total water-pollutant emission. By virtue of this new management system, pollution-loading amount of individual watershed could be controlled, which achieved the requirements of water-quality management, such as TP and BOD. In initiate stage of its implementation, BOD was selected as the object of water-quality management, since we need to consider the continuity of water-quality data and established pollutant-management laws and policy. During the ongoing management, TP management was added into the system, since BOD management alone was not enough. However, the frequency of algae bloom in Han river showed the same trend, even though TP was treated as additional control target. Therefore, this paper will analyze different water-quality parameters and characteristic of water quality, in order to serve as a reference for watershed management of water quality, by which the applicable management period and target pollutant can be selected in the future. |