• 대한안전경영과학회지
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• 제9권1호
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• pp.77-84
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• 2007

This study was planned to investigate what the main factor of the regulation compliance of inspection on harmful machine, instrument and equipment by industrial safety and health act is. This study subject was composed of three groups as employers, employees of manufacturing and using the harmful machine and safety inspectors. Manufacturing workplace were 236 places, using workplace were 201 places and the safety inspectors were 100 people. The study subject was sampled by stratified random sampling considering the type of harmful Machine. Data for analysis is collected from each sample using interview with structured questionnaires. Compliance is measured by 2, 3, and 4 point scale composed by 8 sub items such as general perception, understanding, clearness, necessity, relevancy, implementation, penalty, and general compliance of the regulation. The level of 8 items of employer's compliance are not differentiated among three groups. The determining factors for inspection observance of the workplace using the harmful Machine were understanding, penalty and cognized compliance. The determining factors for inspection observance of the workplace manufacturing the harmful Machine were understanding and object conformity. These results show that the strategy to adapt the regulated group to inspection regulation will be the elevation of understanding for regulation first of all.

• 대한가정학회지
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• 제44권2호
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• pp.25-36
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• 2006

This study examined the subcategories of the self concept of adolescent consumers, and investigated the influence of this self concept and the demographic characteristics on the evaluation and experience of adolescent entry into harmful places. The adolescent group was divided into 4 subgroups: (group I with negative evaluation and without entry experience, group II with negative evaluation but with experience;, group III with positive evaluation but without experience, and group IV with positive evaluation and with experience). The differences of demographic characteristic and self concept between these. subgroups were inspected. The results of this study were as follows. First, the self concept of the adolescent consumer consists of body self, social self, achievement self, scholarship self and family self. Among these self concepts, scholarship self was the highest, and family self was the lowest. Second, from the result of regression analysis using the demographic element as an independent variable to inspect the factors influencing self concept, sex, school year, living with parents, and economic status were statistically significant. Third, in case of entry evaluation, singing room was evaluated most positively among 10 places with a score of 4.20 and pub/drunkenness was evaluated most negatively. In case of entry experience, singing room was the most frequently experienced place and discotheque was the least. Fourth, with respect to demographic characteristics and influences of self concept, the influencing factors on entry evaluation were sex, school year, social self, and family self, and the influencing factors on entry experience were sex, school year, living with parents, social self, and family self. Finally, examination of the differences of demographic characteristics and self concept according to entry evaluation and experience, revealed the distinctive variables among the 10 harmful places to be sex, school year, living with parents, body self, social self, achievement self, scholarship self, and family self.

• 한국안전학회지
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• 제15권1호
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• pp.72-79
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• 2000

In recent, occupational diseases in harmful working places become a social issue. It is the well-known fact that a respiration in polluted working places exert a serious effect on health of workers. Accordingly, the cutting off contaminants air originally is the best way to improve working environments. In these cases, ventilation systems should be essentially installed to dilute or exhaust the contaminated indoor air. In this study, we investigated the characteristics of ventilation system of the noxious gas in working indoor places with natural ventilation by using COMET. The numerical simulations were carried out the natural ventilation with two phase(air, dust). For turbulent flow, Reynolds stresses were closed by the standard $\kappa$-$\varepsilon$ model. The results are as follows ; 1) In the natural exhaust in the working place, the flows of the central region have a more rapid velocity vector than the right and left one. 2) Numerical results show that the distribution of contaminants concentration have greater influence on convection than the case of diffusion by government of velocity vectors. 3) To observe the velocity variation with distance, three location of distance are considered. As results, it shows that the velocity are 0.075(m/s) at y=5(m), 10(m) and mean concentration are raised 10.6% at y=5(m), 10(m). 4) We have presented the useful data for the adequate counterplan in the harmful working places by carrying out the various investigation of the natural ventilation.

• 한국학교보건학회지
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• 제20권2호
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• pp.69-80
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• 2007

Purpose: The present study purposed to investigate the current state of harmful business places around schools and to survey and analyze how much middle school students know about school environment hygiene purification zones, which have not been much effective. Methods: In addition, this study clarified the problem of harmful environment around schools by inquiring into students' value and perception on worsening harmful environment around schools and provided basic materials necessary for making policies on school education and the protection of educational environment. For these purposes, we conducted a questionnaire survey of 1,000 middle school students in Gyeonggi-do on their perception on harmful environment around their schools, and drew conclusions as follows. Result: Students' knowledge about the School Health Act was low, and they generally thought that the law does not play its role substantially and efficiently in purifying and regulating harmful environment and regulations are superficial and temporary. To the question of whether harmful businesses observe laws for purifying environment around schools, most of the students replied negatively. In actuality, as most of harmful businesses running at school environment hygiene purification zones are stationeries with game rooms, comic book stores, PC rooms, etc., which are highly accessible to students, they become serious problems in school environment. Conclusion: As it is required to make continuous and systematic surveys and researches on the school environment hygiene purification zones, we need to manage school environment efficiently through cooperation among the government, education offices and individual schools.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2003년도 추계학술대회 논문집
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• pp.213-214
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• 2003

Atmospheric particles have a great deal of influences on the climate and the air quality, which change the living and industrial environments of a specific area. Especially, the suspended dusts and aerosols can often have a harmful influences on workers' health, equipments at working places. For this reasons, the measurement of atmospheric particle size distributions is of considerable current interest. (omitted)

• 생물환경조절학회지
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• 제19권4호
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• pp.177-183
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• 2010

연소식 $CO_2$ 발생기 사용시 사용하는 연료에 따라서 발생되는 $CO_2$ 농도 및 유해가스 농도를 비교 분석하는 것을 목표로 하였다. 사용 연료로는 등유, LPG, LNG를 이용하였다. 연소식 $CO_2$ 발생기는 등유사용 국내제품을 설치한 온실(A), 외국제품을 설치한 온실(B), LPG 사용 국내제품과 외국제품을 설치한 온실 2개소(C와 D) 및 LNG 사용 온실(E)을 선정하였다. 측정은 서울대학교 농생명과학공동기기원(NICEM)의 실내공기질 분석 시스템의 일부 측정시스템을 온실로 이동하여 측정하였다. 연소식 $CO_2$ 발생기 작동 유무에 따른 $CO_2$ 가스 증감은 $NO_x$류의 증감에 정의 상관을 보였으며, 사용 연식에 따른 버너의 내구성 저하에 따른 유해가스 발생량이 증가하였다. CO 농도가 매우 높게 나올 경우에는 발생기 내부에 컨버터를 장착하여 농도를 저감시켜 직물의 생리장해를 예방시킬 필요가 있었다. 전체적으로 $CO_2$ 발생에 따른 유해가스 농도는 최근 설치된 장치에서는 큰 문제가 없었으며 가장 낮은 유해가스 발생량은 국산 LPG 제품을 사용한 D 온실이었다.

• 보건교육건강증진학회지
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• 제18권1호
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• pp.109-125
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• 2001

The purpose of this study was to provide the basic data for establishing school education environment protection measures, on the basis of comparing and analyzing the realities and students' recognition degree of the environment and hygiene around the middle and high schools located in the rural areas. These study data were investigated by the self-administered questionnaires, taking as subject the 805 students in the middle and high schools located rural areas. And the results were as follows: First, as the result of having investigated the distribution degree of harmful environment within the purification zone around schools, it was found out that students responded: within the purification zone around the middle school, there were cartoon rooms (46.2％), electronic game rooms (45.9％), and singing rooms (45.0％). within the purification zone around the high school, there were electronic game rooms (46.3％), singing rooms (42.3％), billiard halls (41.4％), PC rooms (40.1 ％), and Soju-room (35.2％). Secondly, as having analyzed student's recognition degree of the harmful environment around the school, it was found out that middle school students responded that sexual utensils-treating shops (3.74 points) were most harmful, and next corrupted bathhouses (3.52 points), and Soju-room (3.47 points), and high school students also responded relating to harmfulness in a similar sequence. Thirdly, in case of students' recognition degree of the harmful environment around the school according to general characteristics, 1) girl students had a higher ratio of recognition that the environment around the school was harmful than boy students (p〈0.001). 2) groups of students whose living standard was high had a higher ratio of recognition that the environment around the school was harmful than groups of students whose living standard was low (p〈0.05). 3) groups of students whose school was located near the park or the residential street had a higher degree of recognition that the environment around the school was harmful than groups of students whose school was located near the factory or the shopping area (p〈0.01). 4) groups of students whose school was located near the park or the residential street had a higher degree of recognition that the environment around the school was harmful than groups of students whose school was located near the amusement area or the shopping area (p〈0.05). Fourthly, 1) relating to the harmful shops where they experienced most highly the behavior of drinking and smoking, middle school students responded that they did so in the electronic game room (22.5％) and high school students did so in the singing room (31.4％), and high school students had a very high experience ratio of drinking and smoking, compared with middle school students (p〈0.001). 2) relating to the harmful shops where they could get in contact with lewd articles, both of middle school students (5.3％) and high school students (8.3％) responded that they could do so in the video room. 3) relating to the harmful shops where they experienced unsound opposite sex acquaintance, both of middle school students (5.8％) and high school students (16.6％) responded that they did so most highly in hotels, and high school students had a remarkably high experience ratio of unsound opposite sex acquaintance, compared with middle school students (p〈0.05). 4) relating to the harmful shops where they experienced violence, middle school students responded that they did so in the electronic game room (14.0％) and then in the singing room (3.7％), and high school students responded that they did so in the electronic game room (9.3％), the nightclub (4.6％), Soju-room (4.1 ％), and high school students had a remarkably high experience ratio of violence, compared with middle school students (p〈0.05). 5) relating to the harmful places where they experienced drugs both of middle school students (0.8％) and high school students (2.4％) responded that they did so in the hotels. Fifthly, when going to the harmful shops, students had the experience of being guided and regulated roughly 1 time - 2 times, and middle school students (16.4％) and high school students (16.7％) had almost similar experience ratios of being guided and regulated. Conclusively, there was a limit in controlling the environment and purification zone only by legal regulations and institutional controls, the self-control purification effort for the school and the surrounding environment was required greatly, in order to protect students from harmful environment. In addition, the constant study to establish the educational environment purification measures must be carried out.

• 한국직업건강간호학회지
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• 제18권1호
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• pp.71-83
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• 2009

Objective: This study was conducted to compare health conditions and problems, health promoting behavior, and risky environment of industrial workers. Methods: The subjects of this study were 1,075 workers in 40 factories, located in Daegu, Korea. Survey data were collected from April 17th, 2006 to April 28th, 2006. CMI (Cornell Medical Index) Health Checklist was used to assess the health problems, Health Rating Scale for health status, HPLP II for health promoting behavior, and environmental risk assessment tool for risky environment. The data were analyzed by One-way ANOVA and Pearson Correlation Coefficient using SPSS 12.0 for windows. Results: The results indicated a significant difference in health problems (F=4.70, p=.000), health conditions (F=2.47, p=.022), health promoting behavior (F=5.67, p=.000), and risky environment (F=14.75, p=.000) among these industrial workers. Conclusion: The results of this study suggest that there is a need to develop customized health care programs for each company to provide differentiated health care to different types of work places. Further studies are required to assess differences in work environment among different types of work places for measures to reduce harmful factors to the environment.

• 한국환경보건학회지
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• 제43권3호
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• pp.176-184
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• 2017

Objectives: Excluding in their homes, children spend most of their time at an elementary school, daycare center, and/or kindergarten. For educational or recreational purposes, they make use of many children's goods at these places. Some children's goods contain phthalates and heavy metals with polyvinyl chloride (PVC), so due to their physiological and behavioral characteristics children are exposed to high concentrations of phthalates and heavy metals. This study aims to measure PVC and heavy metals, which are harmful substances in children's goods which can have an effect on children's health. Methods: Six samples of children's goods were selected through cases of detected harmful substances and the results of previous research, including assembly blocks, model toys, household toys, bags, indoor play equipment, and floor mats. The selected items were measured using X-Ray Fluorescence (XRF), and the presence and content of environmentally harmful substances such as PVC or heavy metals in the materials of children's goods were examined. Results: The highest detection rate for PVC was observed in floor mats, and bags and indoor play equipment were higher than other goods in this regard. The highest detection rate for heavy metals was found in bags, followed by indoor play equipment, assembly blocks, household toys, model toys and floor mats. Except for bags containing heavy metals, five goods showed the highest level of Pb compared to other heavy metals. Floor mats contained the highest level of Pb, Cr, and Cu among all goods. Conclusion: Many children's goods contain PVC and heavy metals, and high levels of heavy metals have been detected in some goods. It is necessary to manage children's goods to support their health.

• 산업진흥연구
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• 제9권1호
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• pp.189-202
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• 2024

지구상에 분포하고 있는 수맥 자체가 해로운 것이 아니라 수맥으로부터 발생하는 수맥 파가 인체 건강에 해롭다는 것이다. 지구의 고유진동수는 7.83Hz인데 깊은 잠을 자기 위해서는 이 진동수보다 낮은 델타파로 2~3.99Hz의 상태로 내려가야만 가장 깊은 잠을 잘 수 있어 건강을 유지할 수가 있다. 그렇지만 수맥 파가 있는 곳에서 잠을 자게 되면 수맥 파가 뇌파를 간섭하여 잠을 잘 자지 못하고, 악몽을 꾸기도 하고, 자고 일어나도 몸이 개운하지 못하고 피로가 다 풀리지 않아 쉽게 지치고 피곤함을 느끼게 된다. 이 같은 현상이 지속해서 이루어지다 보면 몸의 저항력이 떨어지고 면역력이 약해져서 결과적으로 병을 유발하는 원인이 될 수 있고, 각종 질병을 얻게 되어 건강을 해칠 수가 있다. 즉 수맥파로부터 가장 안전하고 간단히 대처할 수 있는 효과적인 방법은 수맥이 있는 곳은 피하고, 수맥이 없는 곳으로 잠자는 자리만 바꿔도 건강하고 행복한 생활을 할 수 있다는 것을 사례를 통해서 규명하고자 한다.