UNLABELLED The location of the wet bulb globe temperature (WBGT) index measurement may affect heat stress flag category classification. PURPOSE This study aimed to compare WBGT measurements at three locations along the Boston Marathon race course and compare WBGT estimates for meteorological stations and 72-h advanced WBGT forecasts. METHODS WBGT was measured hourly from 1000 to 1400 h at a...

BACKGROUND Heat exposure among construction workers in the Persian Gulf region is a serious hazard for health. The aim of this study was to evaluate the performance of wet bulb globe temperature (WBGT) Index for estimation of heat strain in hot/humid conditions by the use of Physiological Strain Index (PSI) as the gold standard. MATERIAL AND METHODS This cross-sectional study was carried out ...

Heat-stress-related injuries and deaths are a serious concern to the military. A joint Army/Air Force publication (TB MED 507) provides heat stress guidance based on the wet-bulb globe temperature (WBGT), soldier work rate, and clothing level. In a military environment, however, accurate WBGT measurements or predictions (for planning purposes) may not be available or practical to obtain; thus, ...

The WBGT heat stress index has been well tested under a variety of climatic conditions and quantitative links have been established between WBGT and the work-rest cycles needed to prevent heat stress effects at the workplace. While there are more specific methods based on individual physiological measurements to determine heat strain in an individual worker, the WBGT index is used in internatio...

The wet bulb globe temperature index (WBGT) is a common method to assess the environmental contribution to heat stress as part of an occupational exposure assessment. The two purposes of this study were (1) to compare empirical relationships of some meteorological conditions to WBGT, and (2) to evaluate a smaller globe and alternative method to assess natural wet bulb using a relative humidity ...

BACKGROUND An important feature of climate change is increasing human heat exposure in workplaces without cooling systems in tropical and subtropical countries. Detailed gridded heat exposure maps will provide essential information for public health authorities. OBJECTIVES To develop and test methods for calculating occupational heat exposures and present results in easily interpreted maps. ...

BACKGROUND The purpose of this study was to determine the level of heat stress to construction workers using Thermal Work Limit (TWL) and Wet Bulb Globe Temperature (WBGT) indices and by measuring Urine Specific Gravity (USG) among construction workers in Iran and comparing the appropriateness of these indices for measuring heat stress in Iran climate. METHODS This comparative and experimenta...