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Applicability of the Model Presented by Australian Bureau of Meteorology to Determine Wbgt in Outdoor Workplaces: A Case Study Publisher



Teimori G1, 2 ; Monazzam MR3 ; Nassiri P4 ; Golbabaei F4 ; Dehghan SF5 ; Ghannadzadeh MJ6 ; Asghari M7
Authors
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Authors Affiliations
  1. 1. Department of Environmental Health Engineering, School of Health, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
  2. 2. Health Sciences Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
  3. 3. Department of Occupational Health, School of Public Health, Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Occupational Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Workplace Health Promotion Research Center, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  6. 6. Department of Environmental Health Engineering, Faculty of Health, Arak University of Medical Sciences, Arak, Iran
  7. 7. Department of Occupational Health Engineering, Faculty of Health, Arak University of Medical Sciences, Arak, Iran

Source: Urban Climate Published:2020


Abstract

The present study was aimed to investigate the applicability of the model presented by Australian Bureau of Meteorology (ABM) to determine the WBGT index recommended by the ISO in outdoor workplaces. This cross-sectional study was carried out on 12 construction materials mines in three districts of Tehran Province, Iran with different climatic conditions. The physiological parameters of all workers (175 men) and environmental variables at 33 work stations were monitored simultaneously at 9 am, 12 pm and 15. According to ISO 7243, heat stress was measured by the formula and also the WBGT index was calculated based on the model presented by the ABM. A significant relationship was found between measured and calculated values of WBGT in the three mentioned periods (P < .001) and the highest correlation was observed at 12 pm (r = 0.931). The significant relationships were observed between heat stress indices and all physiological parameters (P < .05). The highest correlation was found between the parameters of the oral temperature, tympanic temperature and the HR with measured and calculated WBGT, respectively (P < .05). simplicity, no need for sophisticated measuring equipment, and low cost can make the model a screening tool for assessing occupational heat stress in the studied outdoor mines. © 2020 Elsevier B.V.
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