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http://dx.doi.org/10.5352/JLS.2012.22.3.324

Microbiological Pollution Investigation of Lowland Spring Water at the Jeju City Waterfront, Jeju Island  

Kim, Man-Chul (Korea Fisheries Resources Agency, Jeju Project Station)
Han, Yong-Jae (Korea Fisheries Resources Agency, Jeju Project Station)
Heo, Moon-Soo (Department of Aquatic Biomedical Sciences, Jeju National University)
Publication Information
Journal of Life Science / v.22, no.3, 2012 , pp. 324-331 More about this Journal
Abstract
Bacteriological examination of spring water in Jeju City was conducted. A total of 21 spring water samples were collected from January to April, 2010. During the study period, the range of temperature was 0.6 to $15.4^{\circ}C$, and the results of the analyses showed that hydrogen ion concentrations (pH) for spring water were 0.43 to 7.9. Salinity levels for the samples averaged from 3.0 to 1.64%, and levels of water-dissolved oxygen were 1.85 to 6.06 mg/l. The range of total coliforms in spring water samples at 21 stations located in the designated spring water were <1.8->1,600 MPN/100 ml. Furthermore, the range of geometric means of total coliforms was 9.9-151.6 MPN/100 ml, while the range of fecal coliforms in spring water samples at 21 stations located in the designated spring water area was <1.8->1,600 MPN/100 ml. Finally, the range of geometric mean of fecal coliforms was 3.1-151.6 MPN/100 ml. The level of microbial contamination was examined in 21 samples for indications of bacterial contamination such as heterotrophic bacteria, Escherichia coli O157:H7, Salmonella spp., Vibrio parahaemolyticus, Staphylococcus aureus, and Shigella spp. were frequently detected in the spring water. Salmonella spp., Shigella spp., Vibrio parahaemolyticus, and S. aureus were detected in the range of $0-0.5{\times}10^1$, $0-0.1{\times}10^1$, $0-0.1{\times}10^1$, and $0-0.3{\times}10^1$ CFU/ml, respectively, while E. coli O157:H7 was not detected in the examined spring water samples.
Keywords
Spring water; microbiological pollution; fecal coliform; total coliform;
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