What may be an indicator of thermal hazards?

• A. Excessive moisture
• B. Extreme temperatures
• C. High humidity levels
• D. None of the above

Answer: (B)

Extreme temperatures serve as a clear indicator of thermal hazards because they can significantly impact the safe handling and storage of hazardous materials. When temperatures rise or fall excessively, they can alter the chemical stability of substances, increase the risk of reactions, and elevate the likelihood of fires or explosions. For instance, certain chemicals may become unstable or volatile at high temperatures, while freezing conditions may cause materials to become brittle. Recognizing extreme temperatures as a thermal hazard helps ensure appropriate safety measures are taken, such as using proper protective equipment or implementing cooling systems for storage areas.

In this context, while excessive moisture and high humidity levels can affect certain hazardous materials, they do not directly indicate thermal hazards in the same way that extreme temperatures do.