correlation between heat strain score index and wbgt index with physiological parameters in a glass manufacturing plant
نویسندگان
چکیده
original article the objectives of this research were to study the correlations of heat strain score index (hssi) and values of wet-bulb globe temperature (wbgt) index with physiological parameters such as core body temperature, heart rate, and blood pressure of workers exposed to heat stress in a glass manufacturing plant in order to determine the reliability of hssi. this cross sectional study was carried out on 72 production, packing, and quality control male workers of a glass manufacturing plant. the wbgt values were recorded according to standard no. international standard organization (iso) 7243 heat stress standard during the summer season in july–august 2013. metabolic rate for each task was estimated according to standard no. iso 8996. body core temperature and heart rate were monitored according to standard no. iso 9886. hssi questionnaire was used to evaluate heat strain. the data were analyzed using pearson and spearman correlation coefficients and linear regression test. the maximum wbgt value (30.20±1.06ºc) was recorded in production unit of plant. the scores of hssi index in production, packing, and quality control operators were 23.16±1.9, 21.56±1.69, and 21.43±2.04, respectively. the highest correlation coefficient was found between the measured wbgt values and core body temperature (r=0.462). positive correlations between the values of wbgt index and studied physiological parameters indicated that the wbgt as the most widely accepted index is better than hssi for the assessment of thermal stress in glass manufacturing industry.
منابع مشابه
comparing the association between wet bulb globe temperature (wbgt) and heat stress score index (hssi) thermal indices with physiological parameters in a melting plant
original article introduction: exposure to heat is one of the workplace risk factors, which may lead to thermal strain, such as rising heart rate and body temperature. to have the best association between a heat stress indices and physiological parameters have always been a major concern for those studying the subject. this study aims to compare the association of two heat stress indices with...
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عنوان ژورنال:
international journal of occupational hygieneجلد ۷، شماره ۴، صفحات ۲۰۱-۲۰۸
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