Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of Attainment Ratio on Water Quality Goal of the Mid-watershed Representative Station

중권역 대표지점의 목표수질 달성도 평가 - TOC를 중심으로 -

  • Lee, Jaeho (Water Environment Research Department, National Institute of Environmental Research) ;
  • Lee, Seunghyun (Water Environment Research Department, National Institute of Environmental Research) ;
  • Lee, Soohyung (Water Environment Research Department, National Institute of Environmental Research) ;
  • Lee, Jaekwan (Water Environment Research Department, National Institute of Environmental Research)
  • 이재호 (국립환경과학원 물환경연구부) ;
  • 이승현 (국립환경과학원 물환경연구부) ;
  • 이수형 (국립환경과학원 물환경연구부) ;
  • 이재관 (국립환경과학원 물환경연구부)
  • Received : 2017.04.12
  • Accepted : 2017.07.28
  • Published : 2017.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

The attainment ratios of the water quality goals of the 114 mid-watershed representative stations, examined during the period2011 to 2015, were evaluated in the study. Of the four major river basins, the attainment ratio on water quality goal of the Geum River basin turned out to be the lowest. As a result of formal evaluation of the attainment ratios of BOD, COD and TOC, it was found that the attainment ratio of COD was much lower than that of BOD and TOC (I a circumstance thought to be caused by the higher COD/BOD and COD/TOC ratios of the water quality of the river than those of the environmental water quality standard). As well, higher COD/BOD and COD/TOC of wastewater discharged from point and non-point sources (other than those of the environmental water quality standards) might possibly represent one of the reasons. We also compared attainment ratio between the main stream and tributaries, which indicated that the higher attainment ratio was present in the main stream. The attainment ratio is also documented as more significant in the winter season than the summer season, possibly due to the contribution of non-point pollutants swept in by rain during the summer season during documented periods of high precipitation. Thus, water quality management in summer season and improvement of water quality of the tributaries might be important as a means of increasing attainment ratio on water quality goal.

Keywords

References

  1. Byeon, J. D., Kim, T. D., Lee, S. K., Hong, T. K., and Kim, H. W. (2008). Correlation betwee TOC, UVA and CODMn of Environmental Water Samples, Journal of the Korean Society for Environmental Analysis, 11(4), 286-291. [Korean Literature]
  2. Jung, K. Y., Ahn, J. M., Kim, K. S., Lee, I. J., and Yang, D. S. (2016). Evaluation of Water Quality Characteristics and Water Quality Improvement Grade Classification of Geumho River Tributaries, Journal of Environmental Science International, 25(6), 767-787. [Korean Literature] https://doi.org/10.5322/JESI.2016.25.6.767
  3. Jung, S. M., Eum, J. S., Jang, C. W., Choi, Y. S., and Kim, B. C. (2012). Characteristics of Nonpoint Source and Relationship between Land Use and Nutrient Concentrations in the Han River Watershed, Journal of Korean Society on Water Environment, 28(2), 255-268. [Korean Literature]
  4. Kim, Y. I., Jeong, W. H., Kim, H. S., and Yi, S. J. (2012). Use of Tributary Water Quality and Flowrate Monitoring Data for Effective Implementation of TMDL, Journal of Korean Society of Environment Engineering, 34(2), 119-125. [Korean Literature] https://doi.org/10.4491/KSEE.2012.34.2.119
  5. Lee, J. H., Park, S. Y., Kim, D. H., Lee, Y. J., Park, M. J. (2012). Long-term Monitoring and Analysis for Discharge Characteristics of Nonpoint Source Pollution by Land Use Types in Geum River Basin, Journal of Journal of Korean Society of Hazard Mitigation, 12(6), 343-350. [Korean Literature] https://doi.org/10.9798/KOSHAM.2012.12.6.343
  6. Lee, J. W., Kwon, H. G., and Choi, H. Y. (2014). Evaluation of Pollution Level Attributed to Nonpoint Sources in Nakdonggang Basin, Korea, Journal of Environmental Impact Assessment, 23(5), 18-22. [Korean Literature]
  7. Ministry of Environment (MOE). (2006). Master Plan of Water Environment Management, Ministry of Environment, 86-98. [Korean Literature]
  8. Seo, D. I. (2009). Small Stream Management for the Needs of the Country River Management, Journal of Korean Water Resources Association, 42(5), 18-22. [Korean Literature]
  9. Yi, S. J. (2013). Establishment of Water Quality Standards and Water Quality Target in the Geum-River Basin, Journal of Korean Society on Water Environment, 29(3), 438-442. [Korean Literature]
  10. Yoon, Y. S., Yu, J. J., Kim, M. S., and Lee, H. J. (2006). Computation and Assessment of Delivery Pollutant Loads for the Streams in the Nakdong River Basin, Journal of Korean Society on Water Environment, 22(2), 277-287. [Korean Literature]