RISS 검색 - 국내학술지논문 상세보기

국문 초록 (Abstract)

낙동강 하류의 수질상은 가정하수, 산업폐수 그리고 인축분뇨등의 유입가능성에 비추어 직접간접으로 인체에 유해한 몇가지 중금속류(아연, 연, 크롬, 카드뮴등)의 농도는 인체의 건강보호를 위한 환경허용기준에 훨씬 미달하였다.

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낙동강 하류의 수질상은 가정하수, 산업폐수 그리고 인축분뇨등의 유입가능성에 비추어 직접간접으로 인체에 유해한 몇가지 중금속류(아연, 연, 크롬, 카드뮴등)의 농도는 인체의 건강보호...

다국어 초록 (Multilingual Abstract)

An investigation on the pollution of water sampled from 5 locations of the estuary of Nakdong river was conducted during the periodfrom May, 1979 to Jan. 1980. The locations of sampling sites were named Gupo, Maekdo, Hadan, Myungji, and Jangrhim. And the water samples were taken twice in general a month, measured and analyzed in accordance with the recognized methods.
The results obtained were shown below:
1.Average water temperature was 20.6℃ ranging from 11∼28.5℃, and average pH value was 6.36 ranging from 5.8∼7.9, and the difference in the value at 5 locations was not found.
2.Turbidity averaged 9.4ppm ranging from 4~30ppm. The value was highest at Hadan area with 10.9ppm and lowest at Gupo area with 7.29ppm.
3.The mean value of hardness was 498ppm and ranged from 28∼3700ppm. The value at Jangrhim area was highest with 547.5ppm.
4.The mean value of dissolved oxygen concentration (D.O) was 8.08ppm ranging from 6.0∼8.9ppm. The value was highest at Gupo area with 4.92ppm and loweet at Hadan area with 7.92ppm.
5.The mean value of biochemical oxygen demand (B.O.D) was 4.79ppm ranging from 3.0∼5.7ppm. The highest value was at Maekdo area with 4.92ppm and the lowest at Gupo area with 4.65ppm.
6.The mean value of chemical oxygen demand (C.O.D) was 7.39ppm ranging from 4.0∼ 18.0ppm. The value was highest at Hadan area with 8.67ppm and lowest at Gupo area with 6.54ppm.
7.The mean value of ammonia-nitrogen was 0.78ppm ranging from 0.07∼2.5ppm. The highest area was Hadan and Jangrhim area with 0.92ppm and the lowest at Gupo area with 0.50ppm.
8.The density of general bacteria averag 15×106/ml ranging from 100-95×106/ml. The highest number of colonies was 28×106/ml at Hadan area and the lowest was 10×105/ml at Gupoarea.
9.Coliform-group density averaged 60×104/100ml ranging from 650~52×105/100ml. The highest number of colonies wae at Hadan area with 12×105/100ml and the lowest at Gupoarea with 45×103/ml.
10.The mean value of zinc was 11.6ppb ranging from ND(not detectable) 75ppb. The value was highest at Maekdo area with 17.1ppb and the lowest at Gupo area with 4.8ppb.
11.The mean value of lead was 2.3pdb ranging from ND-10ppb. The value was highest at Maekdo area with 3.2ppb and the lowest at Gupo area with 21.1ppb.
12.The mean value of chromium was 40ppb ranging from ND-130ppb. The value was highest at Hadan area with 50ppb and the lowest at Gupo area with 4ppb.
13.The mean value of cadmium was 0.32ppb ranging from ND-1.6ppb. The value was highest at Jangrhim with 0.53ppb and the lowest at Gupo area with 0.03ppb.

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