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논문 기본 정보

자료유형
학술저널
저자정보
이재호 (국립환경과학원 물환경연구부) 이승현 (국립환경과학원 물환경연구부) 이수형 (국립환경과학원 물환경연구부) 이재관 (국립환경과학원 물환경연구부)
저널정보
한국물환경학회 한국물환경학회지 한국물환경학회지 제33권 제5호
발행연도
2017.1
수록면
525 - 530 (6page)

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초록· 키워드

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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.

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