Insulation and Evaporative Resistance of Clothing for Sugercane Harvesters and Chemical Sprayers, and Their Application in PHS Model-Based Exposure Predictions
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Date
2020-04-28
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Mark
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MDPI AG
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Abstract
Many workers are exposed to heat stress that can be exacerbated by the type of clothing they wear. The resulted heat strain can lead to short or long-term heat-related disorders. This study aimed to measure clothing properties of sugarcane field workers and evaluate the heat strain by an international standard, predicted heat strain model (PHS). The clothing thermal insulation and evaporative resistance values of sugarcane cutter and chemical sprayer outfits were acquired for the whole body, body regions and specific body parts via thermal manikin measurements. The detailed clothing insulation values of body parts can be utilized in advanced thermo-physiological models, while in this study, the values for the whole body together with weather data were used in PHS. Estimated duration limited exposure times (DLE) for an hour-by-hour prediction over a workday and for a range of high humidity scenarios were calculated. Such evaluation tools can be used for risk assessment and management to support organizational measures and prepare equipment and materials in the case of hot weather events in order to avoid dehydration and other heat-related disorders
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Citation
International Journal of Environmental Research and Public Health (printed). 2020, vol. 17, issue 9, p. 1-12.
https://www.mdpi.com/1660-4601/17/9/3074
https://www.mdpi.com/1660-4601/17/9/3074
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Peer-reviewed
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en