文章基本信息

标题：Estimation of Heat Stress and Maximum Acceptable Work Time Based on Physiological and Environmental Response in Hot-Dry Climate: A Case Study in Traditional Bakers
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作者：Davood Afshari ; Saeid Moradi ; Kambiz Ahmadi Angali 等
期刊名称：The International Journal of Occupational and Environmental Medicine
印刷版ISSN：2008-6520
电子版ISSN：2008-6814
出版年度：2019
卷号：10
期号：4
页码：194-202
DOI：10.15171/ijoem.2019.1582
出版社：National Iranian Oil Company (NIOC) Health Organization
摘要：Background: Heat stress is common among workers in hot-dry areas. To take preventive.
其他摘要：Background: Heat stress is common among workers in hot-dry areas. To take preventive strategies for the protection of workers against heat stress, it is important to choose a suitable index that can accurately explain environmental parameters relative to physiological responses. Objective: To evaluate heat stress and maximum acceptable work time (MAWT) based on physiological and environmental response in hot-dry climate among traditional bakers. Methods: The current study was carried out on 30 traditional bakers of 3 different bread baking systems in Ahvaz, Iran. Environmental and physiological parameters were measured simultaneously for a work shift. The work-rest time was also determined based on the relative heart rate (RHR) and the wet-bulb globe temperature (WBGT) index. Results: The average WBGT index was estimated to be higher than the standard limit for all baking stations. Despite the higher-than-the-recommended-limit WBGT index, there was no significant relationship between the WBGT index and physiological parameters. The results indicated a significant (p<0.05) difference between the percentages of work-rest time estimated using the WBGT and RHR index. Conclusion: Based on the results of environmental and physiological monitoring of this study as well as the limitations of the use of the WBGT index, it seems that using WBGT as a standard index would not suit heat stress management in hot-dry climates. A revision of this standard to adapt to hot climatic conditions should be in order.
关键词：Heart rate;Temperature;Workplace;Occupational stress;Work;Rest;Heat stress disorders