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Influence of occupational heat stress on labour productivity – a case study from Chennai, India

Author

Listed:
  • Jeremiah Chinnadurai
  • Vidhya Venugopal
  • Kumaravel P
  • Paramesh R

Abstract

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°C 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.

Suggested Citation

  • Jeremiah Chinnadurai & Vidhya Venugopal & Kumaravel P & Paramesh R, 2016. "Influence of occupational heat stress on labour productivity – a case study from Chennai, India," International Journal of Productivity and Performance Management, Emerald Group Publishing Limited, vol. 65(2), pages 245-255, February.
  • Handle: RePEc:eme:ijppmp:v:65:y:2016:i:2:p:245-255
    DOI: 10.1108/IJPPM-08-2014-0121
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    Cited by:

    1. Jimmy Lee & Vidhya Venugopal & P K Latha & Sharifah Badriyah Alhadad & Clarence Hong Wei Leow & Nicholas Yong De Goh & Esther Tan & Tord Kjellstrom & Marco Morabito & Jason Kai Wei Lee, 2020. "Heat Stress and Thermal Perception amongst Healthcare Workers during the COVID-19 Pandemic in India and Singapore," IJERPH, MDPI, vol. 17(21), pages 1-12, November.

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