갑천 수질 및 표층 퇴적물의 오염도 평가 (Assessment of Water Quality and Sediment Pollution in Gap Stream)

서지정보

· 발행기관 : 한국환경분석학회
· 수록지 정보 : 환경분석과 독성보건 / 24권 / 1호 / 13 ~ 25페이지
· 저자명 : 양윤모, 채민희, 이대희, 박윤경, 석광설

초록

Five sampling sites at the Gap Stream, a major tributary flowing into the Geum River, were classifiedaccording to their locations on the left or right banks of the latter; this was to allow an assessment of the pollutionlevel in the river. To this end, the water quality and the sediments were examined twice -in the first andthe second half of the year and before and after the rainy season. In terms of water quality, the concentrationof nutrients increased during the second half of the testing period at sites G3 to G5, which are located justbefore the confluence of the stream and the river. The assessment results also showed that site G5-R requiredparticular attention because of water pollution due to a frequent inflow of contaminants via surface sediments,in the second half of the study period after rainfall, when the WQI(Water Quality Index) was applied. In termsof the sediments, there was no site corresponding to Class IV or “heavily polluted”, according to the standardsof the National Academy of Environmental Research. However, in the first half of the year, sites G4 and G5on the left bank were polluted at LEL-SEL levels, which, according to the Ontario standards and the Org-Indexassessment, indicated that they were “moderately polluted” or worse, indicating a concern regarding pollutionfrom organic matter and nutrients.

영어초록

Five sampling sites at the Gap Stream, a major tributary flowing into the Geum River, were classifiedaccording to their locations on the left or right banks of the latter; this was to allow an assessment of the pollutionlevel in the river. To this end, the water quality and the sediments were examined twice -in the first andthe second half of the year and before and after the rainy season. In terms of water quality, the concentrationof nutrients increased during the second half of the testing period at sites G3 to G5, which are located justbefore the confluence of the stream and the river. The assessment results also showed that site G5-R requiredparticular attention because of water pollution due to a frequent inflow of contaminants via surface sediments,in the second half of the study period after rainfall, when the WQI(Water Quality Index) was applied. In termsof the sediments, there was no site corresponding to Class IV or “heavily polluted”, according to the standardsof the National Academy of Environmental Research. However, in the first half of the year, sites G4 and G5on the left bank were polluted at LEL-SEL levels, which, according to the Ontario standards and the Org-Indexassessment, indicated that they were “moderately polluted” or worse, indicating a concern regarding pollutionfrom organic matter and nutrients.

참고자료

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