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Climate Change Effects on the Predicted Heat Strain and Labour Capacity of Outdoor Workers in Australia

Author

Listed:
  • Andrew P. Hunt

    (School of Biomedical Sciences, Faculty of Health, Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia)

  • Matt Brearley

    (Thermal Hyperformance, Hervey Bay, QLD 4655, Australia
    National Critical Care and Trauma Response Centre, Darwin, NT 0800, Australia
    School of Allied Health, Exercise & Sports Sciences, Charles Sturt University, Albury, NSW 2640, Australia)

  • Andrew Hall

    (Gulbali Institute, Charles Sturt University, Albury, NSW 2640, Australia)

  • Rodney Pope

    (School of Allied Health, Exercise & Sports Sciences, Charles Sturt University, Albury, NSW 2640, Australia
    Tactical Research Unit, Bond University, Robina, QLD 4229, Australia)

Abstract

Global heating is subjecting more of the planet to longer periods of higher heat stress categories commonly employed to determine safe work durations. This study compared predicted worker heat strain and labour capacity for a recent normal climate (1986–2005) and under commonly applied climate scenarios for the 2041–2080 period for selected Australian locations. Recently published heat indices for northern (Darwin, Townsville, and Tom Price) and south-eastern coastal and inland Australia locations (Griffith, Port Macquarie, and Clare) under four projected climate scenarios, comprising two representative concentration pathways (RCPs), RCP4.5 and RCP8.5, and two time periods, 2041–2060 and 2061–2080, were used. Safe work durations, before the threshold for core temperature (38.0 °C) or sweat loss (5% body mass) are attained, were then estimated for each scenario using the predicted heat strain model (ISO7933). The modelled time to threshold core temperature varied with location, climate scenario, and metabolic rate. Relative to the baseline (1986–2005), safe work durations (labour capacity) were reduced by >50% in Port Macquarie and Griffith and by 20–50% in northern Australia. Reaching the sweat loss limit restricted safe work durations in Clare and Griffith. Projected future climatic conditions will adversely impact the predicted heat strain and labour capacity of outdoor workers in Australia. Risk management strategies must adapt to warming conditions to protect outdoor workers from the deleterious effects of heat.

Suggested Citation

  • Andrew P. Hunt & Matt Brearley & Andrew Hall & Rodney Pope, 2023. "Climate Change Effects on the Predicted Heat Strain and Labour Capacity of Outdoor Workers in Australia," IJERPH, MDPI, vol. 20(9), pages 1-12, April.
  • Handle: RePEc:gam:jijerp:v:20:y:2023:i:9:p:5675-:d:1135161
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    References listed on IDEAS

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    1. Leonidas G. Ioannou & Konstantinos Mantzios & Lydia Tsoutsoubi & Eleni Nintou & Maria Vliora & Paraskevi Gkiata & Constantinos N. Dallas & Giorgos Gkikas & Gerasimos Agaliotis & Kostas Sfakianakis & A, 2021. "Occupational Heat Stress: Multi-Country Observations and Interventions," IJERPH, MDPI, vol. 18(12), pages 1-21, June.
    2. Kerstin K. Zander & Supriya Mathew & Stephen T. Garnett, 2018. "Exploring Heat Stress Relief Measures among the Australian Labour Force," IJERPH, MDPI, vol. 15(3), pages 1-15, February.
    3. Kerstin K. Zander & Wouter J. W. Botzen & Elspeth Oppermann & Tord Kjellstrom & Stephen T. Garnett, 2015. "Heat stress causes substantial labour productivity loss in Australia," Nature Climate Change, Nature, vol. 5(7), pages 647-651, July.
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    Cited by:

    1. Lucia Wuersch & Alain Neher & Frank E. Marino & Larissa Bamberry & Rodney Pope, 2023. "Impacts of Climate Change on Work Health and Safety in Australia: A Scoping Literature Review," IJERPH, MDPI, vol. 20(21), pages 1-35, October.
    2. Andrew Hall & Ana Horta, 2023. "Broad Scale Spatial Modelling of Wet Bulb Globe Temperature to Investigate Impact of Shade and Airflow on Heat Injury Risk and Labour Capacity in Warm to Hot Climates," IJERPH, MDPI, vol. 20(15), pages 1-17, August.

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