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首页> 外文期刊>Journal of Producitivity and perfoemance management >Influence of occupational heat stress on labour productivity - a case study from Chennai, India
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Influence of occupational heat stress on labour productivity - a case study from Chennai, India

机译：职业热应激对劳动生产率的影响-以印度钦奈为例

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Purpose - Raise in temperatures due to climate change is likely to increase the heat stress in occupations that are physically exerting and performed outdoors which might potentially have adverse health and productivity consequences. The purpose of this paper is to estimate the productivities in construction work under the influence of heat stress using the predicted mean vote (PMV) index. Design/methodology/approach - Field studies were conducted during May 2014 which is summer time in Chennai. Continuous heart rate of workers and wet bulb globe temperature measurements are conducted for workers engaged in different jobs in construction. Metabolic rates and the workload of the workers from heart rate were calculated using the ISO method 8996 and the PMV" values are calculated using the tool developed by Malchaire based on the method ISO 7730. Direct observations and personal interviews were conducted to substantiate the productivity estimations. Findings - The results showed that workers working outdoors with moderate and heavy workload exceeded the threshold limit value of 28℃ and had adverse productivity impacts (18-35 per cent productivity loss), whereas the workers engaged in light indoor work was not affected by heat stress and consequent productivity losses. The productivity estimations using the PMV index is found to be statistically significant for three types of construction works (Pearson correlation coefficient value of —0.78) and also correlated well with the observations and self-reported productivities of the workers. Originality/value - The method used in this paper provides a scientific and reliable estimation of the productivities which may benefit the industry to set realistic project completion goals in hot weather and also implement interventions and policies to protect workers' health. Developing adaptive strategies and implementing control measures are the need of the hour to protect worker's health and economic losses in the face of climate change.
机译：目的-由于气候变化而引起的温度升高可能会增加在户外进行身体活动和从事的职业中的热压力，这可能对健康和生产力造成不利影响。本文的目的是使用预测的平均投票（PMV）指数估算在热应力影响下的建筑工程生产率。设计/方法/方法-实地研究于2014年5月进行，当时是夏奈。对从事建筑工作的工人进行连续的心率测量和湿球温度测量。使用ISO方法8996计算代谢率和工人的工作量，并使用Malchaire根据ISO 7730方法开发的工具计算PMV“值。进行了直接观察和个人访谈以证实生产率估算值。结果-结果显示，在中等和繁重工作量下在户外工作的工人超过了28℃的阈值极限，并且对生产率产生了不利影响（生产率损失18-35％），而从事轻度室内工作的工人不受热应力和随之而来的生产率损失发现，使用PMV指数进行的生产率估计在三种类型的建筑工程中具有统计学意义（Pearson相关系数值为-0.78），并且与工人的观察结果和自我报告的生产率有很好的相关性。原创性/价值-本文使用的方法可为您提供科学可靠的估算生产率的提高可能使行业受益，以便在炎热的天气中设定切实可行的项目完成目标，并实施干预措施和政策以保护工人的健康。在面对气候变化的时刻，需要制定适应性战略和实施控制措施来保护工人的健康和经济损失。

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