铝厂中肌肉骨骼系统症状与磁场暴露情况
Symptoms of the musculoskeletal system and exposure to magnetic fields in an aluminium plant.
作者信息
Moen B E, Drabløs P A, Pedersen S, Sjøen M, Thommesen G
机构信息
Institute of Occupational Medicine, University of Bergen, Norway.
出版信息
Occup Environ Med. 1995 Aug;52(8):524-7. doi: 10.1136/oem.52.8.524.
OBJECTIVE
The study was performed to examine the influence of the exposure to magnetic fields in the potrooms of an electrolysis plant on the occurrence of musculoskeletal symptoms among the employees. The study was performed after much discussion and worry in the aluminium industry about this issue.
METHODS
A retrospective cohort study was performed at an aluminium plant. The occurrence of musculoskeletal symptoms registered at health controls performed by the occupational health care unit in 1986 and 1991 was assessed from employees exposed to magnetic fields in the potrooms (n = 342) and from a control group (n = 277). The data were collected before the discussion about the effects of magnetic fields started. The exposure to static magnetic fields was found to be 3-20 mT inside the potrooms. Ripple components (alternating currents (AC fields)) were registered as well.
RESULTS
No difference between the exposed and unexposed groups was found for the reported musculoskeletal symptoms in 1986 or in 1991.
CONCLUSIONS
There seems to be no relation between work in potrooms with exposure to static magnetic fields and the occurrence of musculoskeletal symptoms.
目的
本研究旨在探讨电解厂电解车间接触磁场对员工肌肉骨骼症状发生情况的影响。该研究是在铝行业对这一问题进行大量讨论并表示担忧之后开展的。
方法
在一家铝厂进行了一项回顾性队列研究。评估了1986年和1991年职业健康护理单位对在电解车间接触磁场的员工（n = 342）和对照组（n = 277）进行健康检查时记录的肌肉骨骼症状的发生情况。这些数据是在关于磁场影响的讨论开始之前收集的。发现电解车间内的静磁场暴露为3 - 20 mT。还记录了脉动成分（交流电（AC场））。
结果
1986年或1991年，暴露组和未暴露组报告的肌肉骨骼症状没有差异。
结论
在电解车间接触静磁场的工作与肌肉骨骼症状的发生之间似乎没有关联。
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