• Journal of Preventive Medicine and Public Health
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• 제32권4호
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• pp.473-481
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• 1999

Objectives: In recent days, the problem of odor pollution in community near Sihwa Industrial complex, Kynuggi Province is becoming of significant public concern. We have investigated the health effects of the Sihwa residents from odor pollution comparing with other less polluted areas. Methods: The Ansan and Kuri Cities were selected as control areas. The parents of the elementary and middle school students in these three areas were surveyed with structured questionnaire twice, Nov 1997 and Jure 1998 each. As a exposure index, the ambient air concentrations of five major air pollutants(particulates, $O_3,\;SO_2,\;NO_2$, CO) and subjective odor perception were used. We have focused health outcomes such as the prevalence of nonspecific irritant symptoms, respiratory disease among family members and the score of qualify of life(QOL). Results: Although the mean concentrations of major air pollutants except particulates were similar or lower in Sihwa than other areas, the odor perception rate and the monthly odor perception days were significantly higher. It suggested that odor producing chemical compounds are the major source of environmental pollution problem. There were higher prevalence rates of nonspecific irritant symptoms and respiratory disease among family members in Sihwa than other control areas. The QOL score was also lower in Sihwa. The odor perception proved to be a most important factor in reporting adverse health effects and lowering the QOL score. Conclusion: The residents living near Sihwa industrial complex were suffering from more adverse health symptoms and poorer QOL status than control areas. And it may be due to environmental odor pollution from industrial complex. Therefore, further research will be needed for monitoring of the responsible chemicals emitted from industries.

• 한국직업건강간호학회지
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• 제16권2호
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• pp.158-167
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• 2007

Propose: To identify the effects of job stress for depression in clinical nurses. Method: The subjects were 304 clinical nurses in Busan Metropolitan City. Data was collected by questionnaire surveys using convenience sampling. The instruments used in this study were the short form of the Korean Occupational Stress Scale(KOSS-SF) and the Beck Depression Inventory-Korean Version Standard Ten(K-BDI STEN). Result: After adjusting potential confounders, we found that the group of 50~75% job stress score for interpersonal conflict was more likely to have depression than the group of less than 25%(OR=3.522, 95% CI 1.06~20.25). The group of equal or more than 75% job stress score for job insecurity was more likely to have depression than the groups of less than 25%(OR=9.413, 95% CI 4.00~71.03). The groups of equal or more than 75% and 50~ 75% job stress score for lack of reward was more likely to have depression than the group of less than 25%, respectively(OR=19.302, 95% CI 2.50~244.25; OR=38.201, 95% CI=6.25~344.45). Conclusion: To prevent depression in clinical nurses, we need to intervene job stress for insufficient job control, interpersonal conflict, job insecurity and lack of reward.

• 한국환경과학회지
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• 제15권11호
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• pp.1017-1025
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• 2006

This study was conducted to evaluate characteristic of water duality in coastal sea of Incheon using a multivariate analysis. The analysis data in coastal sea of Incheon was aquired by the NFRDI data which was surveyed from March 1997 to November 2003. Eleven water quality parameters were determined on each survey The results were summarized as follow : Water quality in Incheon coastal sea could be explained up to 64.62% by three factors which were included in loading of fresh water and nutrients by the land(36.98%), seasonal variation(16.19%), and internal metabolism (11.24%). The results of time series analysis by factor score, in case of factor 1, station 1 influenced by Han river was shown to high factor score and station 3 located by outer sea was shown to low factor score. In case of factor 2, station 1 was appeared to high variation and station 3 was appeared to low variation. The result of cluster analysis by station was classified into three group that has different water quality characteristics. Especially, station 1 which affected by Han river and station 4 which affected by sewage treatment plant was appeared to considerable water quality characteristics against other station. In yearly cluster analysis, three group was classified and water quality in 2003 years due to high precipitation was different to another year. It could be suggested from these results that it is important to control discharge of fresh water by Han rivet and sewage treatment plant for water quality management of coastal sea of Incheon.

• 한국환경보건학회지
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• 제30권2호
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• pp.173-183
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• 2004

The purpose of the present study was to assess food hygiene and safety knowledge, attitudes, and practices of food-service personnel in school food-service programs and to find factors affecting their knowledge, attitudes, and practices. A self-administered questionnaire was offered to a random sample of 40 kitchen employees in elementary schools in one region of Korea, with 37 completing the survey, a response rate of 92.5%. The survey was carried out over a two-month period (April-May, 2001). Knowledge score of the employees was high with a mean/standard deviation of 4.75/0.32 on a 5.0-point scale. They had significantly lower attitude score (4.55$\pm$0.33) and practice score (4.55$\pm$0.45) compared to the score of knowledge (p＜0.05). Logistic regression analysis showed that (1) the employees＇ education level and work experience in school food-service programs affected their knowledge, (2) age, level of living, monthly income, and housing type affected their attitudes, and (3) monthly income, level of living, housing type, and work experience in school food-service programs affected their practices. Pearson＇s correlation analysis confirmed that the knowledge and attitude scores were significantly correlated (r=0.598, p＜0.001). The results indicate that the knowledge, attitude, and practice levels of the employees regarding the food hygiene and safety were better than expected, however, the results suggest a need for the adoption of approaches which take account of socio-economic and environmental influences on behavior to improve and maintain their practice level. The food-handling practices of school food-service employees need to be monitored routinely in order to ensure that safe food is served to our school children.

• 한국환경복원기술학회지
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• 제19권4호
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• pp.1-17
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• 2016

In this study, remodeling projects are perceived as a sustainable urban management policy to boost the value of old apartments and stimulate urban regeneration and development. To evaluate the physical environmental performance of external spaces of remodeled apartments, an evaluation model was developed. After applying it to the target places, the following results were obtained. First, analysis of the external space change index of the target apartments revealed that institutional standards are necessary in line with the building arrangement type, parking lot expansion method, and changes in the building-to-land ratio. Second, the score ratio as to the external space change index performance is as follows: safety (48.30); pleasantness (25.90); convenience (18.90); eco-friendliness (14.90). In other words, "safety" had the biggest score ratio. Third, to boost the external space performance of remodeled apartments, the needs of residents and neighboring environmental plans should be considered from a communality standpoint.

• 보건교육건강증진학회지
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• 제22권4호
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• pp.203-213
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• 2005

Purpose: To assess the environmental hazards of falling accident in the homes of the elderly. Method: 222 homes of the elderly were assessed by the home environmental Checklist from May to July in 2003. Results: The mean score of home environmental hazards for fall were 13.19 with the highest score being 49, ranging from 4 to 24. The bathroom was the most hazardous place in the home, porch came next bedroom, kitchen, living room and stair followed them. The floor surface such as finishes and non-skid mats was the most hazardous interior factor in the home, using bathroom came next furniture and illumination followed them. The floor surface such as finishes and non-skid mats in the bathroom, kitchen, living room and porch, illumination of bedroom and stair were the most prevalent hazards in the home of interior. Of the 49 potential hazards, bathroom grab bar was the most prevalent one with 89.9%, and non-skid rugs in the porch, bathroom and kitchen, safety of dinner table, the threshold and furniture of porch, and illumination of bedroom were prevalent more than half of the home under assessing. Men, living in the separate house or villa with stairs were in more hazardous environments. Conclusion: To reduce the potential hazards of fall accident in the home, improving hazards relating to floor surface such as slip resistance surface and mats is important specially those of the separate house or villa with stairs.

• 한국환경과학회지
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• 제20권2호
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• pp.175-183
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• 2011

This study was conducted to survey the subjective symptoms of workers and users in selected 5 public facility groups(offices, performance halls, private crammers, wedding halls and indoor sports facilities), located in Seoul, Daejeon and Chungnam Province. Overall as subjective symptoms that were worse at public facilities than those usual, following responses appeared: I have a headache, My eyes are dry or feel irritated or itching, I feel eyestrain or my eyes are bloodshot, My nose was stuffy, I have a cough, I feel dry in the throat or inflammation happens, I feel oppressed in the breast or sometimes have difficulty in breathing, My skin gets dry, My skin is itching or has some spots, I feel like vomiting, I feel easily tired or sleep, I lose my concentration and I feel my memory is falling, I feel dizzy, I feel depressed, I feel being sharp and feel tension, I feel muscular pain or stiffness on shoulders, back and neck. Also, we compare with normal subjective symptoms scores and subjective symptoms scores in public facilities. The highest subjective symptoms score in at normal was my skin gets dry(2.35 points) and subjective symptoms score in public facilities was I feel eyestrain or my eyes are bloodshot(2.61 points).

• 대한가정학회지
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• 제41권12호
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• pp.39-52
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• 2003

The purpose of this study was to investigate the status of school lunch program managers' disposal of food waste and food service management in elementary school lunch program. Questionaries were distributed to 243 school lunch program managers of elementary schools in Seoul and Incheon area. The statistical analysis of data was completed using SPSS program. The results were summarized as follows. The average score of school lunch program managers' environmental conservation consciousness was slightly high, which was found to be 4.0. Most food waste was mainly vegetables. The primary recycling methods of leftovers from the school food service operations were to using them as livestock feed(84.7％). The best way of food waste treatment recognized by school lunch program managers' was utilizing it as fodder for animals or fertilizer(54.1％). The average score that school lunch program managers' achieved in terms of food nice management considering environmental conservation was 3.8. The school lunch managers' opinions imposing environmental regulation on the corresponding firm was very strict. Based on the observed results, several recommendations are suggested：practical food management guideline and its related proper information, foodbank program.

• 자원환경지질
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• 제56권1호
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• pp.65-73
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• 2023

As one of the most vulnerable countries to floods, there should be an increased necessity for accurate and reliable flood forecasting in Indonesia. Therefore, a new prediction model using a machine learning algorithm is proposed to provide daily flood prediction in Indonesia. Data crawling was conducted to obtain daily rainfall, streamflow, land cover, and flood data from 2008 to 2021. The model was built using a Random Forest (RF) algorithm for classification to predict future floods by inputting three days of rainfall rate, forest ratio, and stream flow. The accuracy, specificity, precision, recall, and F1-score on the test dataset using the RF algorithm are approximately 94.93%, 68.24%, 94.34%, 99.97%, and 97.08%, respectively. Moreover, the AUC (Area Under the Curve) of the ROC (Receiver Operating Characteristics) curve results in 71%. The objective of this research is providing a model that predicts flood events accurately in Indonesian regions 3 months prior the day of flood. As a trial, we used the month of June 2022 and the model predicted the flood events accurately. The result of prediction is then published to the website as a warning system as a form of flood mitigation.

• Journal of Animal Science and Technology
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• 제48권1호
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• pp.39-48
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• 2006

본 연구는 1999년 1월부터 2004년 12월까지의 체세포점수의 검정일 자료를 이용하여 124,635개의 초산자료와 134,308개의 2산자료, 37,412개의 3산자료, 41787개의 4산자료, 37412개의 5산 자료를 이용하였다. 분석에 사용된 방법은 체세포 점수에 영향을 미치는 분만연도, 연령, 비유단계, 산차, 계절의 효과를 추정하기 위하여 GLM을 이용하여 최소자승법으로 분석하였으며, 검정일 모형을 이용한 분산성분 추정은 EM-REML 분석방법을 전산 프로그램한 REMLF90을 이용하였다. 각 산차별로 연령에 대한 효과는 연령이 낮은 군에서 체세포 점수가 낮게 나타났으며, 연령이 높은 군에서는 다소 높게 나타났다. 비유단계별 효과는 1산과 2산에서는 비유초기에서 체세포 점수가 낮게 나타났으며 비유말기에 3.151, 3.696로 높은 체세포 점수를 나타났으나, 3산, 4산, 5산에서는 비유중기에 높은 체세포 점수를 나타내었으며, 대체로 피크기에 체세포 점수가 높게 나타나는데 4산과 5산에서는 비유말기에 체세포 점수가 낮게 나타났다. 분만계절별 환경효과는 1산～5산 모두 대체로 9～11월에 체세포 점수가 낮게 나타났으며, 대체로 유량이 낮게 추정되는 6～8월 사이에는 체세포 점수가 대체로 높게 나타났다. 각 산차별 유전력은 1산에서 5산까지 각각 0.05, 0.09, 0.10, 0.05, 0.05를 나타냈으며, 유전분산값은 비유초기의 경우 2, 3, 5산에서 높게 나타났으며, 1산과 4산의 경우는 대체로 낮게 추정되었다.