Mass Load-Based Pollution Management of the Han River and Its Tributaries, Korea |
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Authors: | Jung-Woo Kim Seo Jin Ki Jihee Moon Sung Keun Yoo Anna Ryu Jongho Won Heechul Choi Joon Ha Kim |
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Institution: | (1) Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712, Korea;(2) R&D Institute, KOLON E&C, Yongin, 449-815, Korea;(3) Department of Mechatronics, Gwangju Institute of Science and Technology (GIST), Gwangju, 500-712, Korea;(4) Korea Institute of Environmental Science and Technology, Seoul, 122-706, Korea |
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Abstract: | Spatio-temporal variations of biochemical oxygen demand (BOD) and total coliform (TC) in the Han River, Korea, were investigated
in terms of concentration-based and mass loading-based approaches. Considering the river water quality criteria regulated
by the Ministry of Environment in Korea, the tributaries linked to the mainstream of the Han River were found to be highly
contaminated with respect to both BOD and TC and, in fact, most of the tributaries exceeded the maximum water quality criteria.
To evaluate the pollution impact of tributaries on the mainstream, the monthly water quality monitoring data for six years
(from 1995 to 2000) were collected from the Han River basin, and statistically analyzed using Pearson’s correlation coefficient.
The results revealed that mass loading-based approach was superior to the concentration-based approach for effective Han River
watershed management. Overall results supported that the mass loading-based approach associated with total maximum daily loads
(TMDL) management would be a useful and suitable protocol in watershed management for improving the water quality of the Han
River and protecting public health. Therefore, this study supporting TMDL management can be applicable to a wide array of
contaminants and watershed settings in Korea. |
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Keywords: | The Han River Water quality Total mass load TMDL Watershed management |
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