Final answer:
The WBGT formula is used in indoor applications to evaluate heat stress conditions for workers, aiding in the prevention of heat-related illnesses.
Step-by-step explanation:
The WBGT (Wet Bulb Globe Temperature) formula is primarily used in indoor applications for evaluating heat stress conditions for workers. WBGT takes into account temperature, humidity, wind speed, sun angle, and cloud cover (solar radiation), which are all factors that contribute to the level of heat stress an individual may experience. By using this formula, employers and safety professionals can assess the risk of heat-related illnesses in the workplace and implement appropriate control measures, such as work-rest cycles, hydration strategies, and cooling systems.