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소규모사업장 용접근로자들의 소음·용접흄·망간 노출에 관한 연구
김동구,문덕환,이채관,박명희,함성애,손병철,김대환,이창희,김휘동,이채언 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.5
Objective : This study was conducted for the purpose of investigating the level exposure of welders to noise, welding fume and Manganese(Mn) related to this process. Methods and Material : All subjects in this study were welders engaged in CO2 arc and coated arc welding process especially in small-scale enterprises classified by type of manufacture of ship building, repairing and of other fabricated metal products, which is located in Gimhae and Milyang of Kyeongsang province in south Korea. Air sampling of welding fume was measured, shipped and analyzed on the basis of national institute for occupational safety and health(NIOSH) method in U.S. and work environment measurement method established in south Korea. To measure Noise in the work environment, Noise dosimeter was used on the basis of work environment measurement method established in south Korea. Result : This study was performed during a period from January, 2000 to December, 2001 and Results were as follows: 1. Noise level measured in this work environment was higher than national criteria for permissible exposure limit on health examinations related to hearing loss. 2. The concentration of welding fume and Mn in manufacture of ship building and repairing was higher than those in manufacture of other fabricated metal products. 3. In conditions of existing in ventilation system installed and operated, the concentration of welding fume and Mn was slightly lower than those of not existing. 4. In conditions of existing in sufficient air supply from out door into the work place relied on natural exhaust system, the concentration of welding fume and Mn was slightly lower than those of in not sufficient. 5. In all subjects, a rate of wearing ear plug and respiratory mask for dust and fume was lower than that of not wearing. Conclusion : According to above results, this study suggests that more positive work environment managements such as the use of portable local ventilation system, the supply of highly qualified personal protective equipment, and consecutive education and training related to health protection should be need to acquire suitable health protection program for welders engaged in small-scale enterprises in Korea.
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윤복연,문덕환,박명희,황용식,함성애,손병철,김대환,이창희,김휘동,이채언 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.5
Objective : This study was conducted to prepare the fundamental data on heavy metal concentration in hair permanents agents and to prevent the health impairment due to heavy metal. Methods and Material : The author determined of 5 heavy metals(Pb, Cr, Mn, Ni, and Cu) concentration hair permanent agents in the market with flameless atomic absorption spectrophotometer. Results : The results were as follows: 1. The geometic mean concentrations of total subjects were 0.04㎍/g for Pb, 0.09㎍/g for Cr, 0.06㎍/g for Mn, 0.03㎍/g for Ni, and 0.04㎍/g for Cu. 2. The most highest mean concentrations of heavy metals in hair permanent agents by using type were Cr for wave agent and straight cream agent, Cu for setting iron agent, Cr and Cu for coating perm agent. 3. Metal most hlghest mean concentrations of heavy in hair permanent agents by type of color was green for Cu. 4. The mean concentration of Cu among 5 heavy metals in hair permanent agents by marker was most highest. 5. There was most statistically significant difference on mean concentration in hair permanent agents between domestic and foreign products. 6. The exposure amount of heavy metal concentration by one time using the permanent agent were 4.O㎍ for Pb, 9.O㎍ for Cr, 6.0㎍ for Mn, 3.O㎍ for Ni and 4.0㎍ for Cu. Conclusion : As above results author suggest to prepare the preventive program of health impairment due to heavy metal by long term chronic exposure to who were using the hair permanent agents hair designer and customers.
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