Yang Yu-Chiao, Wei Ming-Chi, Hong Show-Jen
Kaohsiung Medical University, Kaohsiung, Taiwan (Department and Graduate Institute of Pharmacology).
Chia Nan University of Pharmacy and Science, Tainan, Taiwan (College of Sustainable Environment, Department of Applied Geoinformatics).
Int J Occup Med Environ Health. 2017 May 8;30(3):379-395. doi: 10.13075/ijomeh.1896.00761. Epub 2017 Apr 13.
The objective of this study has been to evaluate the occupational heat exposure of 12 workers at 5 plants in a subtropical country.
The heat stresses and strain on workers in 5 plants were assessed by the International Organization for Standardization (ISO) 7243 index (wet bulb globe temperature - WBGT) and the ISO 7933 index (maximum allowable exposure time - D).
Results indicated that 42% of the subjects (5 workers) surpassed the WBGT limits. According to the D, 42% of the subjects could not continue working in the hot environments. The relationships between the various heat stress indices and the WBGT index were also correlated. However, further studies from different heat environments and more subjects should be performed.
The sensitive dependence of skin temperature on meteorological and physiological indices for each subject was clearly observed. Obviously, the heart rate response to metabolic rate was much greater than that caused by environmental heat alone. The exponential relationship between workers' duration-limited exposure time, predicted by various estimated criteria, and WBGT were also found. Int J Occup Med Environ Health 2017;30(3):379-395.
本研究旨在评估一个亚热带国家5家工厂的12名工人的职业热暴露情况。
采用国际标准化组织（ISO）7243指数（湿球黑球温度-WBGT）和ISO 7933指数（最大允许暴露时间-D）对5家工厂工人的热应激和热应变进行评估。
结果表明，42%的受试者（5名工人）超过了WBGT限值。根据D值，42%的受试者无法在高温环境中继续工作。各种热应激指数与WBGT指数之间也存在相关性。然而，应在不同的热环境下对更多受试者开展进一步研究。
清楚观察到每个受试者的皮肤温度对气象和生理指标的敏感依赖性。显然，心率对代谢率的反应远大于仅由环境热引起的反应。还发现了根据各种估计标准预测的工人限时暴露时间与WBGT之间的指数关系。《国际职业医学与环境卫生杂志》2017年；30(3):379 - 395。
