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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Acknowledgments
This work was supported by Korea Ministry of Environment as “The Eco-technopia 21 project” and the basic research project (GE02690) through a grant provided by the Gwangju Institute of Science and Technology in 2007. We gratefully acknowledge the National Institute of Environmental Research (NIER) in Korea and the Korea Water Resources Corporation (KOWACO) for their support in providing monitoring data.
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Kim, JW., Ki, S.J., Moon, J. et al. Mass Load-Based Pollution Management of the Han River and Its Tributaries, Korea. Environmental Management 41, 12–19 (2008). https://doi.org/10.1007/s00267-007-9030-1
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DOI: https://doi.org/10.1007/s00267-007-9030-1