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http://dx.doi.org/10.17663/JWR.2018.20.2.173

Availability Evaluation of TOC as the Environmental Standard - Survey of Lakes in Nakdong River Basin -  

Choi, Byoungwoo (Department of Environmental Engineering, Andong National University)
Kang, Meea (Department of Environmental Engineering, Andong National University)
Publication Information
Journal of Wetlands Research / v.20, no.2, 2018 , pp. 173-180 More about this Journal
Abstract
The utilization of TOC(Total organic carbon), a new environmental standard, was evaluated for 30 lakes in the Nakdong River Basin, which is used for drinking and agricultural usage. The active use of water resources begins with securing satisfactory water quality. Since this allows people and nature to maintain stability of quality, water quality standards are being tightened to ensure good water quality. In order to improve the pollution level of organic matter in lakes in the living environment, it is important to use the appropriate organic substance index. The relationship between the newly introduced TOC and the existing COD(Chemical oxygen demand) in the targeted lake was positively correlated with the possibility of replacing the TOC with COD. However, the environmental grade standard using TOC is better than the environmental grade standard using COD, so it has the same effect as that of the grade of water quality using TOC as an organic substance factor. This indicates the limitation of TOC to directly replace existing COD when trying to determine or improve the quality level using organic indicators of lakes. Therefore, in order to secure the qualitative safety of the lake, it is required to strengthen environmental standards of TOC in terms of water quality grade. In addition, the correlation between TOC and COD shows a great difference depending on the utilization characteristics of the lake. This requires clear scientific identification, and it requires continuous monitoring of COD that has been used to accumulate indicators of lake organic matter.
Keywords
COD(Chemical oxygen demand); environmental standard grade; lakes; organic matter parameter; TOC(Total organic carbon);
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Times Cited By KSCI : 2  (Citation Analysis)
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