• Korean Journal of Fisheries and Aquatic Sciences
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• v.19 no.2
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• pp.169-175
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• 1986

This study was carried out to evaluate the water quality of spring waters in Pusan area (see Fig. 1). In this experiment, one hundred and forty water samples were collected at 20 stations from July to December 1985. Range and mean value of constituents of the samples were as follows ; pH 6.2-8.2, 7.07 ; water temperature $4.0-23.5^{\circ}C,\;15.9^{\circ}C$ ; electrical conductivity $0.228{\times}10^{2}-2.125{\times}10^2{\mu}{\mho}/cm,\;0.860{\times}10^2{\mu}{\mho}/cm$; chloride ion 3.28-19.3mg/l, 6.81mg/l ; nitrite-nitrogen ND-0.221 mg/l, 0.017mg/l ; nitrate-nitrogen ND-6.779mg/l, 0.877 mg/l ; phosphate-phosphorus ND-0.105mg/l, 0.021mg/l ; silicate-silicious 2.12-22.70mg/l, 9.04mg/l, respectively. Especially, electrical conductivity, chloride ion, nitrite-nitrogen, nitrate-nitrogen, and silicate-silicious of the station 11 (Millakdong) were higher than those of others as $1.815{\times}10^2{\mu}{\mho}/cm$, 13.5mg/l, 0.076mg/l, 4.772mg/l and 14.07mg/l. Range and geometric mean value of total coliform and fecal coliform MPN's of the samples were 0-1,500/100ml, 13-470/100ml and 0-460/100ml, 2-32/100ml. Composition of coliform was $26.37\%$ Escherichia coli group, $21.98\%$ Citrobacter freundii group, $37.36%$ Entrobacter aerogenes group and $14.29\%$ others.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.35 no.6
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• pp.621-626
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• 2002

The bacteriological and physicochemical analysis of sea water and sediments in south western part of Jinhae Bay was conducted. The samples were collected from 40 stations, which were established once a month from January to December, 2000. During the study period, the range of temperature was from 5.5 to $23.7^{\circ}C$, the concentration of chemical oxygen demand ranged from 1.20 to 1.55 mg/L, dissolved oxygen ranged from 3.7 to 9.1 mg/L, dissolved inorganic nitrogen ranged from 2.79 to 7.09 $\mu$g-at/L phosphate phosphorus ranged from 0.39 to 0.57 $\mu$g-at/L, and chlorophyll-$\alpha$g-at/L ranged from 4.28 to $9.66 mg/m^{3}$. The chemical oxygen demand, acid volatile sulfide and ignition loss of sediments in south western part of Jinhae Bay ranged from 0.04 to 0.40, from 24.23 to 35.52 mg/L and from 10.49 to $11.09\%$ respectively. The coliform group and fecal coliform MPN's of sea water in south western part of Jinhae Bay ranged from <3.0 to 1,600 MPN/1003nL (means <3.0 MPN/100 mL) and from <3.0 to 93 MPN/100 mL (means <3.0 MPN/ 100 mL), respectively. The coliform group was classified with IMViC reactions were analyzed. Two hundred eighteen strains that were obtained from sea water samples in south westen of Jinhae Bay represented Escherichia coli group, $61.9\%$; Citrobacter freundii group, $12.1\%$; Enterobacter aerogenes, $14.1\%$; and unknown, $11.9\%$.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.20 no.2
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• pp.126-135
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• 1987

The physical properties, coliform groups, and nutrients were investigated to evaluate the sanitary Quality of the environmental water at Chinju area from May to October, 1986. The results were as follows : The pH ranged from 5.4 to 7.8 : water temperature ranged from 12.0 to $30.3^{\circ}C$ : electrical conductivity ranged from $0.51\times10^2\;to\;8.095\times10^2\mu\mho/cm$; chloride ion ranged from 3.6 to 126.8 mg/l, respectively. Especially, the concentration of the chloride ion at St.9 was 109mg/l which was higher than those of others. The $NO_3^--N$ ranged from 0.2336 to 14.1648 mg/l and the mean value was 5.4774 mg/l, the concentration of $NO_3^--N$ at St. 2 was higher as 40 times than that of St.4. The $PO_4^{3-}-P$ ranged from 0.0013 to 0.8315 mg/l, and the mean value was 0.0745 mg/l, the concentration of$PO_4^{3-}-P$ at St.8 was higher than that of others. The $SiO_2-Si$ ranged 1.7 to 15.28 mg/1 and the mean value was 5.81 mg/l. The value of St.8 and St.9 were higher than those of other stations but this value were lower $10\~13\;mg/l$ than the criterion for drinking water as 50 mg/l. The bacterial density of the spring waters ranged 9.1 to 4,600/100 ml (geometric mean : 205/100 ml) for total coliform 0 to 4s0/100 ml and 28.2/100 ml for fecal coliform. Composition of coliform was $38.2\%$ Escherichia coli, $25\%$ Entrobacter aerogenes, $13.2\%$ Citrobecter freundii and the others.