Application of Universal Thermal Climate Index (UTCI) for assessment of occupational heat stress in open-pit mines.

Application of Universal Thermal Climate Index (UTCI) for assessment of occupational heat stress in open-pit mines. Ind Health. 2017 Aug 11;: Authors: Nassiri P, Monazzam MR, Golbabaei F, Dehghan SF, Rafieepour A, Mortezapour AR, Asghari M Abstract The purpose of this article is to examine the applicability of Universal Thermal Climate Index (UTCI) index as an innovative index for evaluating of occupational heat stress in outdoor environments. 175 workers of 12 open-pit mines in Tehran, Iran were selected for this research study. First, the environmental variables such as air temperature, wet-bulb temperature, globe temperature, relative humidity and air flow rate were measured; then UTCI, wet-bulb globe temperature (WBGT) and heat stress index (HSI) indices were calculated. Simultaneously, physiological parameters including heart rate, oral temperature, tympanic temperature and skin temperature of workers were measured. UTCI and WBGT are positively significantly correlated with all environmental parameters (p < 0.03), except for air velocity (r < -0.39; p > 0.05). Moreover, a strong significant relationship was found between UTCI and WBGT (r=0.95; p < 0.001). The significant positive correlations exist between physiological parameters including oral temperature, tympanic and skin temperatures and heart rate and both the UTCI and WBGT indices (p < 0.029). The highest correlation coefficient has been found between the U...
Source: Industrial Health - Category: Occupational Health Tags: Ind Health Source Type: research