School of Public Health, Kerman University of Medical Sciences, Iran.
Institute for Future Studies in Health, Kerman University of Medical Sciences, Iran.
Int J Occup Saf Ergon. 2020 Mar;26(1):71-79. doi: 10.1080/10803548.2018.1475957. Epub 2018 Jul 11.
The current study aimed at comparing the correlation coefficients between wet-bulb globe temperature (WBGT) and a number of parameters, including the discomfort index (DI), modified discomfort index (MDI), predicted mean vote (PMV), predicted percentage of dissatisfaction (PPD), predicted heat strain (PHS), physiological strain index (PSI) and physiological strain index heart rate (PSI). In total, 30 workers of a pelletizing factory participated in this study. Environmental parameters and workers' physiological parameters were measured in 10 working stations. The results showed that effective WBGT (WBGT) strongly correlates with DI, MDI, PMV, PPD, PHS, PSI and PSI. WBGT had the highest correlation coefficients with PMV, MDI, PHS and PSI. Based on the obtained results, it was concluded that heat stress exceeded the standard limit for a number of indices in some of the working stations. Thus, some controlling measures should be taken to reduce heat stress in these stations.
本研究旨在比较湿球黑球温度（WBGT）与多个参数之间的相关系数，包括不适指数（DI）、修正不适指数（MDI）、预测平均投票数（PMV）、预测不满意百分比（PPD）、预测热应变（PHS）、生理应变指数（PSI）和生理应变指数心率（PSI）。共有 30 名造球厂工人参与了这项研究。在 10 个工作岗位上测量了环境参数和工人的生理参数。结果表明，有效 WBGT（WBGT）与 DI、MDI、PMV、PPD、PHS、PSI 和 PSI 呈强相关。WBGT 与 PMV、MDI、PHS 和 PSI 的相关系数最高。根据研究结果得出结论，在一些工作岗位上，一些指数的热应激超过了标准限值。因此，应采取一些控制措施来降低这些岗位的热应激。
