ArticleGlobal health action2014
Occupational heat stress and associated productivity loss estimation using the PHS model (ISO 7933): a case study from workplaces in Chennai, India.
Article in Global health action, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.
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Who cites it
25 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.
- Impact of climate change on occupational health and productivity: a systematic literature review focusing on workplace heat.La Medicina del lavoro · 2018Pooled it
- Trends in Occupational Heat-Health Research in Low-and Middle-Income Countries: A Mapping Review.Current environmental health reports · 2026Review
- The impacts of climate change on occupational health and work among outdoor workers: A scoping review.PLOS global public health · 2026Article
- High levels of heat stress among sugarcane workers in Thailand.Annals of work exposures and health · 2025Article
- Design and Evaluation of Wearable Solar Radiation Shields for Enhanced Personal Heat Exposure Monitoring.Sensors (Basel, Switzerland) · 2025Article
- Heat and health of occupational workers: a short summary of literature.Journal of occupational health · 2024Review
- Occupational Heat Stress and Kidney Health in Salt Pan Workers.Kidney international reports · 2023Article
- Occupational heat stress, heat-related effects and the related social and economic loss: a scoping literature review.Frontiers in public health · 2023Article
- Wearables for Measuring Health Effects of Climate Change-Induced Weather Extremes: Scoping Review.JMIR mHealth and uHealth · 2022Article
- Heat Strain Evaluation of Power Grid Outdoor Workers Based on a Human Bioheat Model.International journal of environmental research and public health · 2022Article
- Physiological impacts on construction workers under extremely hot and humid weather.International archives of occupational and environmental health · 2022Article
- Impacts of Climate Change and Heat Stress on Farmworkers' Health: A Scoping Review.Frontiers in public health · 2022Article
- Estimating the magnitude and risk associated with heat exposure among Ghanaian mining workers.International journal of biometeorology · 2021Article
- Insulation and Evaporative Resistance of Clothing for Sugarcane Harvesters and Chemical Sprayers, and Their Application in PHS Model-Based Exposure Predictions.International journal of environmental research and public health · 2020Article
- The nexus between social impacts and adaptation strategies of workers to occupational heat stress: a conceptual framework.International journal of biometeorology · 2019Article
- Is There a Need to Integrate Human Thermal Models with Weather Forecasts to Predict Thermal Stress?International journal of environmental research and public health · 2019Review
- Exploring how a traditional diluted yoghurt drink may mitigate heat strain during medium-intensity intermittent work: a multidisciplinary study of occupational heat strain.Industrial health · 2018Article
- Occupational heat stress assessment and protective strategies in the context of climate change.International journal of biometeorology · 2018Review
- Estimated work ability in warm outdoor environments depends on the chosen heat stress assessment metric.International journal of biometeorology · 2018Article
- Challenges of using air conditioning in an increasingly hot climate.International journal of biometeorology · 2018Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundHeat stress is a major occupational problem in India that can cause adverse health effects and reduce work productivity. This paper explores this problem and its impacts in selected workplaces, including industrial, service, and agricultural sectors in Chennai, India.
designQuantitative measurements of heat stress, workload estimations, and clothing testing, and qualitative information on health impacts, productivity loss, etc., were collected. Heat strain and associated impacts on labour productivity between the seasons were assessed using the International Standard ISO 7933:2004, which applies the Predicted Heat Strain (PHS) model. RESULTS AND
conclusionsAll workplaces surveyed had very high heat exposure in the hot season (Wet Bulb Globe Temperature =29.7), often reaching the international standard safe work values (ISO 7243:1989). Most workers had moderate to high workloads (170-220 W/m2), with some exposed to direct sun. Clothing was found to be problematic, with high insulation values in relation to the heat exposure. Females were found to be more vulnerable because of the extra insulation added from wearing a protective shirt on top of traditional clothing (0.96 clo) while working. When analysing heat strain--in terms of core temperature and dehydration--and associated productivity loss in the PHS model, the parameters showed significant impacts that affected productivity in all workplaces, apart from the laundry facility, especially during the hot season. For example, in the canteen, the core temperature limit of 38°C predicted by the model was reached in only 64 min for women. With the expected increases in temperature due to climate change, additional preventive actions have to be implemented to prevent further productivity losses and adverse health impacts. Overall, this study presented insight into using a thermo-physiological model to estimate productivity loss due to heat exposure in workplaces. This is the first time the PHS model has been used for this purpose. An exploratory approach was taken for further development of the model.
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