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KMID : 0353019730100020207
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Korean Journal of Public Health
1973 Volume.10 No. 2 p.207 ~ p.216
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A Sanitary Study on the Drinking Waters in climbing Areas near Seoul
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Abstract
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The author conducted a survey of the water used for drinking and cooking by mountain climbers in Seoul and its vicinity (Kyonggi province and part of Kangwon province). Environmental inspections and physiochemical analyses of water sources at 160 sites on 18 different mountains in mountain climbing areas were conducted 4 times, once during each season, over two period August 2, 1972-September 16, 1973. The findings of these survey were as follows:
1. Mountain climbers were using water from a total of 160 different sources, of these, 30 were springs, 11 were mineral water sources, 6 were dug wells, l was pump well, 12 were simple piped water supply systems, 22 were sources of Dagimul (water ofr religious services) and 78 were valley water sites.
2. Examination of the water from each site by the membrane filter metod indicated that 75% of the water sources were contaminated with coliform group. Chongjok mountaim was the highest with 100% contamination (coliform count 131), while Soribong was the lowest (coliform count 0).
3. Dagimul source within temples were relatively more contaminated with coliform (61%) than water sources provided in temples for mountain climbers (46%)
4. Coliform contamination was greatest in the summer at 90% reaching 75% in the autumn, 73 in the spring , and 62% in the winter.
5. Water obtained with a well-bucket yielded a co form count of 59, compared with a count of 27 tap-water.
6. NH₃-N, NO₂, CI-ions tended to increase the summer, while water hardness tended to increa in the winter.
7. The rate of contamination among still wate sources was 7% higher than among running wate sources.
8. The rate of contamination among covere sources was 75% compared to 70% compared to 70% among opet sources.
9. Considering sourcces of contamination by run-of from farm-land was greatest at 85% (coliform coun 56%) while contamination by sewage was lowest a 67% (coliform count 110).
10. The average pH for all mountains over the four seasons period was 6.4, average hardness was 24ppm, the Cl- ion count was 4.0ppm; NH₃-N was measured at 0.05ppm, and NO₂-N at 0.03ppm nitrogen and nitrite nitrogen positive at the same time.
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