Which of the following is classified as a Danger Zone in the Index of Thermal Stress?

The classification of "Danger Plus" in the Index of Thermal Stress is indicative of conditions that present an increased risk to health and safety due to extreme heat. This classification is used to alert individuals about potentially life-threatening situations where immediate action may be required to mitigate the risks associated with high temperatures.

In examining thermal stress, different categories are defined for assessing the severity of heat exposure. "Caution" represents a lower level of concern, while "Danger" corresponds to a significant risk that still requires attention. "Severe" suggests extreme conditions that are likely to cause harm, but "Danger Plus" specifically denotes an even greater level of danger, necessitating prompt and proactive measures to protect individuals from potential heat-related illnesses or injuries.

The distinction of "Danger Plus" as a category emphasizes the need for urgent awareness and response to protect against the hazards of extreme thermal conditions, which is why it qualifies as a Danger Zone within the Index of Thermal Stress.