| Title |
Water Quality Improvement Plan for Small Streams in the Northernmost Basin of Bukhan River based on Pollution Grade and Typological Analysis Linkage |
| Authors |
이용석 ( Yong-seok Lee ) ; 전만식 ( Man-sig Jun ) ; 김문숙 ( Moon-sook Kim ) |
| DOI |
https://doi.org/10.15681/KSWE.2016.32.3.281 |
| Keywords |
Environmental condition; Pollution grade; Small stream; Typology; Water quality |
| Abstract |
In the northernmost basin of the Bukhan River, pollution sources can have a concentrated distribution. In these basins, small streams show low flow with various and rapid water quality change in low pollutants load. Therefore, a water quality improvement plan of small streams and main stem will be necessary to establish the characteristics of small streams. This study selected a representative Hwacheon-gun in the northernmost basin of the Bukhan River. Hydro analysis was performed with GIS tools using DEM. A total of 152 small streams were listed. A total of 51 survey locations were selected after applying the selection criteria. Flow rate and water qualities were investigated. Pollution sources and pollutants loads were calculated for each basin. Pollution grade and typological classification were performed by cluster analysis using standardized environmental condition factors. As a result, G04, G01, H01 locations were found to have the worst pollution grades whereas J01, P01, and P02 had less pollution. Typological analyses were able to classify six types for the surveyed small streams. An effective water quality improvement plan was obtained based on the results of pollution grade and typological analysis using environmental condition factors of this study. |