• Journal of Digital Convergence
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• v.16 no.9
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• pp.399-404
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• 2018

The purpose of this study is to raise the drinking rate of Arisu, the tap water in Seoul, and to propose new solution for continuous water quality management and raising awareness. The research scope was limited to point-of-use water treatment system, and based on the this contents I proceed this study how this will help to increase direct drinking rate of Arisu. Through research, Korea has provided users with the ability to filter contaminated tap water simply as water to be rinsed through water purification. Therefore, it was predicted that it would be difficult to improve tap water as drinking water. With this study, I expect that the strength of point-of-use system and the reliability of tap water quality will be raised and hope various product will be developed to improve the perception as drinking water and I also expect that this can be applied to whole country even further in the scope of Seoul city.

• Journal of agricultural medicine and community health
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• v.23 no.2
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• pp.157-174
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• 1998

A survey was conducted to study the influence of socia-demographic factors on health-related behaviors. from June 1 to July 31, 1996. The study population was 1,903 adults in Kyongju City. A questionnaire method was used to collect data. Health-related behaviors included 24 items for men and 26 items for women. The followings are summaries of findings : The compliance of health promotion activities was higher when the age was older in men, when married, when having no religion and when the education level was higher than the other groups. And it was significantly higher when the income was lower in men and higher in women, in the residents living in apartment, in white collar workers, in the chronic ill people and when the body weight was lower than the other groups. Notable differences were found in the composition of health behavior factors for socio-demographic characteristics. Men used more tobacco, coffee and tea, salt and alcohol than women. However, the practice rates of regular exercise and physical examination were higher in men than women. On the other hand, the practice rates of fruit/vegetable intake, milk drinking and regular tooth brushing were higher in women than men. When the age was old, the amount of fruit/vegetable intake, the frequency of physician visit and health check-up, and regularity of meal were increased. When the income was high, the use rate of seat-belts, the amount of coffee, milk, fruit/vegetable and red meat intake were increased. The frequency of regular exercise. tooth brushing, health check-up, pap test and breast self examination were higher in the rich than the poor. When the education level was high, the frequency of regular exercise and tooth brushing, and the use rate of seat belts were increased, and the amount of alcohol consumption and salt intake were decreased. These findings suggest that socio-demographic factors are significantly associated with the patterns of health behaviors. In conclusion public health programs and individual counseling efforts should be multifaceted and behavior-specific to encourage to practice healthy life-style.

• Bulletin of Korea Environmental Preservation Association
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• v.26 no.1_2
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• pp.56-58
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• 2004

최근 지하수 이용률이 해마다 증가하고 있지만 지하수의 체계적인 관리 부족으로 생활 오수 및 산업 폐수, 침출수에 의한 오염이 꾸준히 진행되고 있으며, 특히 가뭄을 비롯한 기상재해는 극심한 물 부족 현상을 낳고 농작물의 수확량을 감소시켜 식량 문제를 야기시키며, 먹는 물과 산업생산에 필요한 용수확보에도 곤란을 주어 삶의 질을 낮추는 직접적인 요인이 되고 있다. 더구나 오염된 지하수의 장시간의 방치로 사용 가능한 지하수량이 급격히 줄어들게 되며, 지하수 자원 이용률이 높은 음용수와 농·공업용수가 절대 부족하게 되어 농업 및 산업 전체, 그리고 인간생활 자체에까지 큰 악영향을 미치게 된다.

• Journal of Korea Society of Industrial Information Systems
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• v.22 no.4
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• pp.11-18
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• 2017

The Objective of this Study is to Prove the Effectiveness of a Smart Water Management(SWM) Technology. The SWM Technology can Reduce the Production Cost using Internet of Thing(IoT) Technology that Utilizes Remote Metering of Consumer's Water usage and Reduce the Leakage of Supply Facilities. The SWM Demonstration Model Installed a Remote Water Leakage Sensor, Smart Metering and Micro Multi Sensor in Water Supply Facility, and Provided Real-Time Monitoring of the Operation Status. Consumers can be Provided the usage of Tap Water and the Water Puality through a Smart Phone Application. At this Time, we Surveyed Whether Consumers save the Tap Water or Drinking Directly using the Tap Water usage Information. Also, this Study is to Verify the Degree of Improvement of Water Supply Rates and Drinking Water Rate, and to Decrease Consumer's Complaints, Operating Costs, and Water Consumption by the SWM Technology. It is also Established a SWM Model Combined with the IoT Sensor at Supply Facilities, operator monitoring system and explored recovery solution detected events. It means the upbringing of the domestic water industry by developing the related technologies and spreading the SWM to advanced levels.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2004.04a
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• pp.403-407
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• 2004

한국지질자원연구원에서 1998년부터 2002년까지 기본사업으로 5년간 수행한 대도시 지역 지하수 오염저감기술연구사업의 경제적 파급효과로서 조건부가치측정법을 활용하여 연구사업성과의 비용, 편익, 순현재가치, 비용편익비, 내부수익률을 산정하였다. 분석과제의 주요성과 중 계량화가 가능한 직접 편익은 지하수 음용화 시설 구축에 따른 편익 및 지하수 데이터 가치 편익 두가지로 분석되었다. 이들 편익에 대한 경제적 파급효과를 2002년도 현재가치로 환산한 결과, 비용은 50.9억원, 편익은 676.9억원, 순현재가치는 626.0억원, 비용편익비는 13.3, 내부수익율은 152%로 나타났다.

• Journal of agricultural medicine and community health
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• v.30 no.1
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• pp.39-50
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• 2005

Objectives: This investigation was carried out to explore the source and the mode of transmission of the diarrhea outbreak in Seongju-gun, Gyeongbuk, 2004 Methods: The authors conducted a questionnaire survey among the 275 persons (students, staff members and cooks) who ingested the possibly contaminated foods. We also investigated the drinking water and the dining facility, and we reviewed the process of cooking the salad, which was the presumed cause of the Enteropathogenic Escherichia coli(EPEC) diarrhea. The confirmed EPEC diarrheal case was defined as culture positive for EPEC, and the suspicious case was defined as diarrheal case with symptoms more than one of fever, vomiting and tenesmus. Results: The attack rate of EPEC diarrhea was 36.7%, and there were 8 confirmed cases. The possibility of the drinking being a source of the infection was very low, for chlorine was detected in all the drinking water via reviewing the past records and using a portable detector. The foods that were significantly associated with diarrhea were found. The relative risk (RR) for the lunch served Jul 7 was 4.12 (95% CI: 1.39-12.20). Among the non-boiled foods that were finally served, the RR for the salad was 1.66 (95% CI: 1.07-2.57). The cause of this outbreak was presumed to be the contaminated foods that were prepared by cooks using rubber glove with holes, and especially the salad and foods that were served sans boiling on Jul 7. Conclusions: Though this EPEC infection was not so clinically important, if a larger outbreak occurred, it might severely affect the public health. It is recommended to develop the more safe methods for cooking foods, and to strengthen the sanitary processing foods.

• Journal of Soil and Groundwater Environment
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• v.10 no.1
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• pp.18-25
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• 2005

For economic impact analysis on a R&D project of groundwater remediation in the metropolitan areas conducted as a fundamental research programme of KIGAM from 1998 to 2002, benefit/cost ratio(BCR), net present value(NPV), and internal rate of return(IRR) were calculated using a contingent valuation method(CVM). Measurable direct benefit parameters among the major outputs of this project consist of setup of drinking water facilities and groundwater information data valuation. In this study, economic impact of the project in NPV of year 2002, with applying a discount rate of $10.0\%$, was identified and estimated as 5.09 billion won in cost, 67.69 billion won in benefit, 62.60 billion won in NPV, 13.3 points in BCR, and $152\%$ in IRR, respectively.