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건강위해성평가에 의한 사무실 실내공기오염물질의 관리항목 확대
노영만 ( Young Man Roh ),이철민 ( Cheol Min Lee ),김윤신 ( Yoon Shin Kim ),김석원 ( Seok Won Kim ),김치년 ( Chi Nyon Kim ),김현욱 ( Hyun Wook Kim ),조기홍 ( Kee Hong Cho ),최호춘 ( Ho Chun Choi ),김정만 ( Jung Man Kim ) 한국산업위생학회 2006 한국산업보건학회지 Vol.16 No.1
This study was performed to deduct the extension possibility of the standards establishment for NO2, O3, Asbestos, Radon, total volatile organic compounds (TVOC) excluded in the indoor air part of Industrial Safety Acts in Korea. The air pollutants were sampled for 30 office buildings from August to September, 2005 in the metropolitan area. The airborne concentrations of NO2, O3, Radon and TVOC were 0.0092 ppm, 0.0035 ppm, 0.57 pCi/L and 423 μg/m3, respectively. The management plan and reduction methods is required in the aspect of indoor air quality(IAQ) because the emission sources of those also exist in indoor as well as outdoor even though those were not exceeded the standards of the Ministry of Environment in Korea. The standard for TVOC in the new and remodeling office has to be established based on the risk assessment when hazard index exceeded "1" in the worst case scenario. In the state of art, the management of each volatile organic compounds has a difficulty due to not enough data for toxicological reference. Therefore, it is suggested that first of all, the standard for TVOC be established and then expanded to each materials for decision-making of improvement of IAQ in office.
일부 PC방내 니코틴 농도와 호흡성분진(RSP) 입경별 상관성
노영만(Young-Man Roh),김윤신(Yoon-Shin Kim),손종열(Jong-Ryeul Sohn),정재열(Jae-Yeol Chung) 한국실내환경학회 2004 한국실내환경학회지 Vol.1 No.1
The PC game rooms in Korea have a problem in the aspect of indoor air quality because there are many occupants for 24 hours where the smoking is allowed. This study was carried out to evaluate indoor air quality (IAQ) including the size distribution of respirable suspended particulates (RSP) and airborne nicotine concentration in selected PC game rooms. The subjects are 6 PC game rooms in Seoul and Sung-Nam Cities. In this study, airborne RSP and nicotine concentrations were measured during a period from February to March, 2003. Significant correlation has been found between the concentrations of RSP and nicotine in PC game room. Also the negative correlation was found between room area and number of operating fan. The correlation coefficients between RSP size distribution and nicotine concentration were 0.868, 0.866, 0.870 in the stages 2 (cut-point 14.80㎛), 5 (cut-point 3.50㎛), and 8 (cut-point 0.52㎛) from Marple"s 8-stage cascade impactor, respectively. In conclusion, RSP concentration in PC game room has a tendency to increase by smoking. Therefore, it is suggested that the effective air control system and education program be applied for PC game room.
노영만(Young Man Roh),김윤신(Yoon Shin Kim),이철민(Choel Min Lee),김기연(Ki Youn Kim),전형진(Hyung Jin Jeon),김종철(Jong Choel Kim) 한국실내환경학회 2006 한국실내환경학회지 Vol.3 No.4
This study was undertaken to investigate the distribution characteristics of the hazardous agents in indoor environment in 7 vessels in Incheon harbor from July to August, 2004. The measured parameters include several indoor air pollutants (PM₁?, CO₂, HCHO, and TVOCs) and physical parameters (noise, vibration, temperature, and humidity). The levels of pollutants and hazardous components in vessels were compared with standards and guidelines of indoor air quality on the Ministry of Environment and the Ministry of Labor in Korea. The major results obtained from this study were as followed : The PM₁? and CO₂ levels in every vessel did not exceed the indoor air standard of 150 ㎍/㎥ and 1000 ppm, respectively. The level of PM₁? showed a decreasing tendency as the weight of vessels is increased. The airbornce concentration of HCHO was the highest one by exceeding its standard in a 500 ton vessel. The noise level in engine room exceeded the workplace standard (90 ㏈(A)) recording above 100 ㏈(A). The TVOCs level in every engine room was more than its standard (500㎍/㎥). Based on our preliminary study of indoor air pollutants in vessels, it is suggested that long and middle term plan for the management of IAQ should be established through future investigation of vessels.
교과서 분석을 통한 초중고 학생들의 안전보건교육 실태 조사
노영만 ( Young Man Roh ),김기연 ( Ki Youn Kim ),이석희 ( Seog Hee Lee ),조기홍 ( Kee Hong Cho ) 한국산업위생학회 2008 한국산업보건학회지 Vol.18 No.1
On the basis of total page, the coverage rate of education of safety and health in textbooks of elementary school was approximately 10%. In middle school, the contents of safety education were addressed mainly in subject of chemistry below about 5% of coverage rate whereas the contents of health education appeared mainly in subject of athletics below about 15% of coverage rate. Similarly, the contents of safety education and health education in textbooks of high school were indicated mainly in the subjects of chemistry and athletics, showing below about 5% and 30% of coverage rate, respectively. In conclusion, the education level of safety and health in textbooks was generally lower compared to other contents. The coverage rate of safety education was relatively lower than health education, which implicates that extensive contents related to safety education are needed to be added to textbooks in order to establish preliminary attitude for preventing workplace accident.
일부 초등학교 교실의 실내공기오염물질 분포 조사에 관한 연구
노영만(Young-Man Roh),김종철(Jong Cheol Kim),이철민(Cheol Min Lee),김윤신(Yoon Shin Kim),하미나(Mina Ha),권호장(Ho-Jang Kwon),정춘화(Chun Hwa Jeong),백종민(Jong-Min Paik),권영규(Young Gyu Kwon) 한국실내환경학회 2007 한국실내환경학회지 Vol.4 No.3·4
This study was surveyed to evaluate and recognize the distribution characteristics of indoor air pollutants(IAPs) such as the total volatile organic compounds(VOCs), formaldehyde(HCHO), PM10, carbon dioxide(CO₂), nitrogen dioxide(NO₂), ozone(O₃) and radon in 10 elementary schools located in urban, rural, and industrial complex area from November 2005 to February 2006. The average concentration of IAPs were 117.9㎍/㎥ as in PM10, 1,971ppm as in CO₂, 486.6㎍/㎥ as in TVOC. These chemical"s concentration was exceeded the indoor air standards of the Department of Education in Korea. The indoor concentrations of ozone and toluene was lower than that of outdoor and other pollutants showed the opposite tendency. In schools located industrial complex area, the outdoor concentration of TVOC was higher than that of urban and rural area. Based on the results above, PM10, CO₂, TVOC have to be in the order of priority to improve the indoor environment in school. Also it should be performed in the detailed survey considered by the seasonal variation because this study showed cross-sectional results.
노영만(Young-Man Roh),박화미(Wha Me Park),이철민(Choel Min Lee),김윤신(Yoon Shin Kim),이상운(Sang Woon Lee),석미희(Mi Hee Suk),정춘화(Chun Hwa Jeong) 한국실내환경학회 2007 한국실내환경학회지 Vol.4 No.3·4
This study was performed to investigate the characteristics of asbestos distribution in 6 public and 6 school buildings from August to September in 2006. The bulk samples were analysed by PLM(polarized light microscope). Also the airborne samples were analysed PCM(phase contrast microscope) and confirmed by SEM-EDX(scanning electron microscope-energy dispersive using X-ray analysis) method. The 6 public buildings included the ACM(asbestos containing material) ranged 2-7 % of chrysotile in 70 % of samples from ceiling, floor tile, and wall board and has 20 % tremolite in 2 ceiling plaster. The 6 school buildings were identified 1.5 % tremolite in one sample and showed the similar asbestos distribution with the public building. The airborne concentrations of fiber materials were ranged with 0.000-0.017 f/cc in public places and 0.000-0.012 f/cc in school building by PCM. However, the asbestos fibers could not be found by SEM-EDX. In the result of physical assessment of ACM in each buildings, it is considered that there is no chance of a hazardous situation because the ACM is not friable. Its suggested that the asbestos control plan should be established to prevent asbestos exposure to occupants from damaged ACM by repairing and custodial work.
레스토랑 물리적 환경지각이 소비자의 태도형성에 미치는 영향
노영만(Young Man Roh) 한국관광연구학회 2004 관광연구저널 Vol.18 No.2
This research examines how various dimensions of physical environments influence patrons` psychological responses(especially cognitive judgement) in the restaurant service environment, and how these cognitive judgement, in turn, influence patrons` restaurant attitudes. The result of empirical research indicates that restaurant physical environments have a significant effect patrons` cognitive judgement, and that these psychological experiences serve as critical mediators in the restaurant physical environments-store attitudes relationship. However, the effects of restaurant physical environments on patrons` cognitive judgement and store attitudes varied with the dimensions of physical environments.