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- W864760855 abstract "This experiment was carried out to evaluate the water quality in the lower part of the Nagdong river in Korea. Three hundred and sixty water samples were collected from the 15 stations from December 1981 to November 1982 by tide(see Fig.1). Water temperature, pH, chloride ion, salinity, total coliform, fecal coliform, viable cell count and the composition of coliform were observed to evaluate the water quality. The variations of water temperature was ranged from and as mean value from . The range of pH was 6.00-8.88 and 7.20-7.96 as mean value. The concentration of chloride ion from St. 1 to 5 was higher as 17.51-771 mg/l in flood tide than 13.12-264.58 mg/l in ebb tide. Specially, water quality at St.1 (Samrangjin) which located about 46 km far from Hadan was also influenced by tide. Salinities of water in flood tide were a litte higher () than those of in ebb tide (). Total coliform MPN's ranged from 3.6/100 m/l to 460,000/100ml. The geometric mean value of the upper area (included St. ) was , that of the middle area (included St. ) was for it leveled heavy contamination. Specially, in the ebb tide St. 10 was influenced by St. 6 and 7. In the upper area, the geometric mean value of fecal coliform MPN's was but in the area in cluded St. 5, 6 and 7 were heavily contaminated by domestic sewage, waste water from the factories area and bird's excrement. Composition of coliform was Escherichia coli group, Citrobacter freundii group, Enterobacter aerogenes group and others. Plate count of samples was varied from during the study period." @default.
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- W864760855 date "1985-01-01" @default.
- W864760855 modified "2023-09-24" @default.
- W864760855 title "Water Quality Variations due to Tidal Change in the Lower Part of the Nagdong River" @default.
- W864760855 hasPublicationYear "1985" @default.
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