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...

This paper aims to assess the effects of urbanization on heat stress comparing two neighbourhoods in tropical city Rio de Janeiro, Brazil, that differ terms building density and vegetation cover. The outdoor was evaluated by Wet Bulb-Globe Temperature (WBGT) Index, which considers combined effect air temperature, relative humidity, solar radiation wind speed, during year 2016. urban neighbourho...

Ultra Violet (UV) parasols are a reasonable countermeasure against heat stress as they portable and inexpensive. This study compared the mitigation effect of UV parasol with that street trees dry-mist spraying on hot humid summer day in Japan. We observed meteorological elements calculated universal thermal climate index (UTCI) wet-bulb globe temperature (WBGT) under parasol, trees, spraying, d...

Work efficiency is not only related to objective cognitive performance, but it also closely subjective psychological feelings. The existing research mostly focuses on the human safety tolerance limit from physiological perspective, and there are few studies work efficiency. In order evaluate of humans in a high-temperature thermal-radiation environment, this paper proposes method personnel effi...

Excessive relative humidity (RH) in combination with high temperature can lead to heat stress, often measured by the Wet Bulb Globe Temperature (WBGT). The Clausius-Clapeyron (CC) relationship implies that warming reduces RH if no extra moisture is added. Over coastal regions like eastern Asia, however, predominant summer monsoon favours increased transport from surrounding oceans as a result o...

This paper presents a case study to determine the efficiency of the currently used heat stress indices in correlation with wet bulb globe temperature (WBGT) as a permissible index at a foundry plant and to evaluate the extent of the physiological responses such as heart rate and body temperature in correlation with heat stress indices. The field consisted of a foundry plant where a shift w...