Journal of Preventive Medicine and Public Health
- Volume 4 Issue 1
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- Pages.65-76
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- 1971
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- 1975-8375(pISSN)
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- 2233-4521(eISSN)
A Study on Public Nuisance in Han River and Nackdong River Part II. Survey on Water Pollution
공해(公害)에 관(關)한 조사연구(調査硏究) 제이편(第二編) 한강(漢江), 낙동강(洛東江) 수질오염도(水質汚染度)에 관(關)한 비교(比較) 조사(調査) 연구(硏究)
- Cha, Chul-Hwan (Dept. of Preventive Medicine, College of Medicine Seoul National University) ;
- Shin, Young-Soo (Dept. of Preventive Medicine, College of Medicine Seoul National University) ;
- Park, Soon-Young (Dept. of Preventive Medicine, College of Medicine Seoul National University) ;
- Cho, Kwang-Soo (Dept. of Preventive Medicine, College of Medicine Seoul National University) ;
- Choo, Chong-Yoo (Dept. of Hygiene, National Institute of Health) ;
- Kim, Kyo-Sung (Dept. of Hygiene, National Institute of Health) ;
- Choi, Dug-Il (Dept. of Hygiene, National Institute of Health)
- 차철환 (서울대학교 의과대학 예방의학교실) ;
- 신영수 (서울대학교 의과대학 예방의학교실) ;
- 박순영 (서울대학교 의과대학 예방의학교실) ;
- 조광수 (서울대학교 의과대학 예방의학교실) ;
- 주종유 (국립보건연구원) ;
- 김교성 (국립보건연구원) ;
- 최덕일 (국립보건연구원)
- Published : 1971.10.01
Abstract
In view of ever rising water pollution problems of river in the vicinity of large urban communities, the author has made an investigation on the pollution of water sampled from Han River (Seoul area) and Nakdong River (Daegu city area) during the period from July to December, 1970. The water samples were taken twice a month during the study period of 6 months from 7 points (locations) along the main stream of Han River at Seoul city and 5 points of Nakdong River at Daegu city. The samples ware measured and analyzed in accordance with the recognized methods in the 'Standard Methods for Examination of Water and waste' by American Public Health Association. The obtained results are as follows : I. Han River. 1. Average turbidity was 5.1 units ranging from 1 to 10 units and the turbidity of down stream was higher than that of the upper stream. 2. pH value showed slight alkalinity (mean;7.2) except Yunchang-Dong (6.9). 3. The mean value of Dissolved Oxygen contents (D.O) was 7.2 ppm. (range of 3.4-10.5ppm.). D.O. of the upper stream (8.2 ppm. at Walker Hill boating place, 8.0 ppm. at the Gwangzang Bridge and Ddookdo) was higher than that of he downstream (5.6ppm. at Yumchang-Dong, 6.4 ppm. at the 2nd Han River Bridge), and D.O. in the winter season was higher than that in the summer season, respectively. 4 The mean value of the Biochemical Oxygen Demand (B.O.D.) was 28.3 ppm. (range of 6.2-64.8 ppm.). The mean value of B.O.D. was 48.7 ppm. at Yumchang-Dong, 42.3 ppm. at the 2nd Han River Bridge, 34.0 ppm. at the 1st nan River Bridge, 28.5 ppm. at the 3rd Han River Bridge, 19.2 ppm. at Dookdo, 13.2 ppm. at the Gwangzang Bridge, and 10.2 ppm. at the Walker Hill boating place in order of value. B.O.D. in July and August (35.6 and 34.5 ppm.) were the highest and that in November and December (18.6 and 21.2 ppm.) were the lowest. 5. Suspended Solids (SS) were from 15.0 to 667.0 ppm. with the mean of 222.1 ppm. 'Suspended Solids' of the water samples at Yumchang-Dong and the 2nd Han River Bridge were found to be 378.1 ppm. and 283.9 ppm. respectively which were higher than at the Gwangzang Bridge (134.1 ppm.) and at Walker Hill boating place (79.3ppm.). 6. Coliform colonies counting of the water samples ranged from
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