| Title |
Comparison of Organic Matter Distribution in Major Tributaries of the Nakdong River |
| Authors |
김흥섭 ( Heung Seop Kim ) ; 홍종진 ( Jong Jin Hong ) ; 성진욱 ( Jin Uk Seong ) ; 최광순 ( Kwang Soon Choi ) ; 박제철 ( Je Chul Park ) |
| Keywords |
Characteristic; COD; Correlation; Distribution; Organic matter; TOC |
| Abstract |
This study was conducted to suggest the concentration distribution of organic matters in 348 tributaries of Nakdong River, and to review the validity of the conversion of organic matter indexes. The average concentration of organic matters in the tributaries was TOC 2.4 mgC/L, DOC 2.1 mgC/L, COD 1.0 mgC/L, respectively. DOC ratio to TOC is 87% and COD ratio is 44%. First tributaries shows higher organic pollution than second tributaries. The correlation between TOC and COD was relatively high as 0.796 (p < 0.01, n = 670). Based upon these results, a regression analysis was conducted. The results showed that TOC concentration was 2.5 times higher than COD concentration. In conclusion, it is appropriate to use TOC for the management of all organic matters. Furthermore, there is a need to build organic matter-related Databases for more rivers so as to establish TOC standards and manage the water quality. |