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한운우,박동학 大田大學校 環境問題硏究所 1998 환경문제연구소 논문집 Vol.3 No.-
The characteristics of drinking groundwater quality is analyzed by investigating 5.733 observed data during 1995. 1-1997. 7 in Taejon city. As the analysis of observed data, the 30.1% of them are over the drinking water quality standards in Taejon city and the unfit ratios of each region are 36.4% at Dong-Gu, 32.3% Taeduk-Gu, 31.2% Jung-Gu, 30.0% Seo-Gu and 25.2% at Yusoung-Gu. The mean concentrations of each item are as follow : NH₃-N is 0.05㎎/ℓ, NO₃-N 3.77㎎/ℓ, hardness 95.77㎎/ℓ, KMnO₄consumption 0.78㎎/ℓ, Cl?? 17.24㎎/ℓ, pH 7.23, evaporation remains 187.23㎎/ℓ, Mn 0.07㎎/ℓ, SO₄?? 16.84㎎/ℓ and F is 0.45㎎/ℓ. All of them are found to be under the water quality standard. But that of Fe is 0.21㎎/ℓ over the water quality at Taeduk-Gu, so that the cause of pollution must be examined closely.
한운우,박동학 大田大學校 環境問題硏究所 1997 환경문제연구소 논문집 Vol.2 No.-
The purpose of this study was to investigate the characteristics of ground water (natural water) quality in East Taejon. This study was carried out by experiment on the well of the easterm area of Taejon and the observed groundwater quality data. I was found that F, Mn, Zn, COD, NO3-N, ordorness, turbidity, hardness, bacteria and E-coli exceeded the water standard. In general, the southern area of Dong-Gu and the northern area of Taeduk-Gu relatively had a good groundwater quality and the pollutant concentration in the area densely populated was higher than the other areas. Bacteria and E-coli were detected mainly at the well of low depth is summer, which will have to be examined preponderantly. It was found that the pollutant concentration of ground water increased every year. Therefore, there will be necessity for the management of groundwater quality pollution in future.
한운우,박동학 大田大學校 環境問題硏究所 1997 환경문제연구소 논문집 Vol.2 No.-
대전광역시에서 음용수로 이용되는 지하수(생수)에 대한 시민들의 인식도를 파악하기 위하여 1996년 4월 무작위로 200명에 대해 현장에서 설문지조사를 실시하였다. 조사결과 수도물은 나쁘며(37%) 수돗물에 비해 생수가 수질이 좋다는 생갹(42%)이 생수를 찾는 주된 이유이며 생수에 대한 신뢰도는 높은(91.1%) 반면 수질검사결과에 대한 인지도는 아주 낮아 무의식적으로 생수를 신뢰하는 것으로 나타났다. 약수터나 공동우물을 이용하는 빈도는 대부분 일주일에 한 번 이상(89%)이며 음용시에는 대부분 끓이지 않은채 그냥 마시는 것(88%)으로 조사되었고 날이 갈수록 생수의 수요가 늘고 있는 것으로 나타났다. The purpose of this study was to investigate the citizen's cognition degree for the ground water(or natural water) in Taejon. This survey was carried out through questionaries in April, 1996. The subjects were 200 citizens sampled at random in the well. The results were as follow. The dominant reasons why they drinked natural water were that tap water was not good(37%) and mineral water was generally good(42%). The reliance on the natural water was very high(91.1%) but cognition degree for water quality was very low. It was found that people unconsciously have reliance on natural water. It was investigated that people took the natural water more than once per a week(89%) and drinked it not boiled (88%). And the use of ground water gradually increased.