Inaba Ryoichi, Mirbod Seyed Mohammad
Department of Occupational Health, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan.
Ind Health. 2007 Jan;45(1):91-9. doi: 10.2486/indhealth.45.91.
In the present study, a survey on subjective symptoms and hot prevention measures in summer was conducted in 204 male traffic control workers and 115 male construction workers. Work loads of traffic control workers and construction workers were estimated at RMR 1-2 and RMR 2-4, respectively. A self-administered questionnaire was used to collect information on age, occupational career, working habit, present or past history of diseases, individual preventive measures to the heat, and subjective symptoms in the summer. Daily working hours in the sunshine of the traffic control workers were significantly longer than those of the construction workers. Prevalence rates of changing clothes frequently, avoiding direct exposure of face and neck to sunlight using towel like materials, and wearing sunglasses in the traffic control workers were significantly lower than the construction workers. Prevalence rates of symptoms in the upper extremities in the traffic control workers were significantly lower than those in the construction workers. Prevalence of work difficulty due to hot weather during work in the traffic control workers was significantly lower than the construction workers. On the basis of the results obtained, some preventive countermeasures to improve working environment are presented.
在本研究中，对204名男性交通管制员和115名男性建筑工人进行了夏季主观症状及防暑措施的调查。交通管制员和建筑工人的工作负荷分别估计为相对代谢率1 - 2和相对代谢率2 - 4。采用自填式问卷收集有关年龄、职业经历、工作习惯、现患或既往病史、个人防暑措施以及夏季主观症状等信息。交通管制员在阳光下的每日工作时长显著长于建筑工人。交通管制员频繁换衣、使用毛巾类物品避免面部和颈部直接暴露于阳光下以及佩戴太阳镜的发生率显著低于建筑工人。交通管制员上肢症状的发生率显著低于建筑工人。交通管制员工作期间因炎热天气导致工作困难的发生率显著低于建筑工人。基于所获结果，提出了一些改善工作环境的预防性对策。
