Assessment of Exposure to Magnetic Fields in Occupational Settings
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概要
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Assessment of Exposure to Magnetic Fields in Occupational Settings : Hirofumi SAKURAZAWA, et al. Department of Environmental Health, School of Medicine, Fukui Medical University-Objective-It is important to have data about occupational magnetic field intensity to consider the contribution of occupational magnetic field exposure on the human body. We conducted research on exposure to occupational magnetic fields and tried to qualify data on the distribution of magnetic field' intensity in certain general working environments with individual measurements. Subjects and Methods-We performed sample research on the exposure to low-frequency magnetic fields of workers in certain occupations and in the working environment. We also assessed the relationship between working environmental magnetic field distribution and individual exposure. Results-Some occupations were found to be exposed to high magnetic fields. We observed that some workspaces, such as the transformer substation, generally had a uniform and high magnetic field measurement but employees were exposed to a lower intensity. We also found that welders were exposed to high magnetic fields at about 600 μT in a very short time but with a geometrical value of 0.08 μT. Conclusion-The determination of administrative levels and control levels, not only of the time weighted average of threshold limits or short term exposure limits, but also ceiling limits should be considered. More systematic research is necessary to determine variables such as operating conditions, measuring position, and frequency bands. Also, further studies will be needed to make a job-exposure matrix for the magnetic fields for each occupation type and to combine it with exposure in non-occupational settings such as commuting and ordinary life situations to explore the causal relationship between exposure to magnetic fields and disease. (J Occup Health 2003 ; 45 : 104-110)
- 社団法人日本産業衛生学会の論文
著者
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HIGASHI Toshiaki
Department of Work Systems and Health, The Institute of Industrial Ecological Sciences, University o
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KUSAKA Yukinori
Department of Environmental Health, School of Medicine, University of Fukui
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NAKAYAMA Takeo
Department of Health Informatics, Kyoto University School of Public Health
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Iwasaki Akio
Department Of Work System And Health Institute Of Industrial Ecological Sciences University Of Occup
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Nakayama Takeo
Department Of Epidemiology Medical Research Institute Tokyo Medical And Dental University
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Kusaka Yukinori
Department Of Environmental Health Faculty Of Medical Sciences University Of Fukui
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Kusaka Yukinori
Department Of Environmental Health School Of Medicine Fukui Medical University
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Sakurazawa Hirofumi
Department Of Environmental Health School Of Medicine Fukui Medical University
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Nakayama Takeo
Department Of Medical System Informatics Kyoto University Graduate School Of Medicine
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Higashi Toshiaki
Department Of Work System And Health Institute Of Industrial Ecological Sciences University Of Occup
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NAKAYAMA Takeo
Department of Medical System Informatics,Kyoto University Graduate School of Medicine
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KUSAKA Yukinori
Department of Environmental Health,School of Medicine,Fukui Medical University
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SAKURAZAWA Hirofumi
Department of Environmental Health,School of Medicine,Fukui Medical University
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IWASAKI Akio
Department of Work Systems and Health,Institute of Industrial Ecological Sciences,University of Occupational and Environmental Health
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HIGASHI Toshiaki
Department of Work Systems and Health,Institute of Industrial Ecological Sciences,University of Occupational and Environmental Health
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HIGASHI TOSHIAKI
Department of Preventive Medicine and Public Health, School of Medicine, Keio University
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