How much does MOPP gear increase the Wet Bulb Globe Temperature (WBGT)?

MOPP (Mission-Oriented Protective Posture) gear is designed to provide protection for personnel in a chemical, biological, radiological, and nuclear (CBRN) environment. However, one of the significant downsides of wearing such gear is the increase in heat stress, as it traps body heat and moisture.

The Wet Bulb Globe Temperature (WBGT) is a measure used to determine heat stress in direct sunlight. It takes into account factors such as temperature, humidity, wind speed, and solar radiation. When personnel wear MOPP gear, it can significantly raise the WBGT reading because the gear creates a barrier that prevents the body from effectively dissipating heat through sweating and evaporation.

The correct choice states that MOPP gear increases the WBGT by 10 degrees. This is consistent with the established data that indicates that the additional insulation provided by MOPP gear can lead to a marked increase in perceived temperature and heat strain, posing risks to personnel in hot environments. Understanding this increase is crucial for managing heat stress risks and ensuring that safety measures, such as hydration and monitoring, are in place when personnel are wearing such gear.