What is a critical reason for storing emergency oxygen away from heat sources?

Storing emergency oxygen away from heat sources is crucial primarily because oxygen can significantly increase the risk of combustion or explosion in the presence of heat. Oxygen itself is not flammable; however, it supports and accelerates combustion. If oxygen tanks are exposed to high temperatures, the risk of failure of the tank increases, potentially leading to a catastrophic situation where the tank could rupture or explode. In environments where there are flammable materials or sources of ignition, the presence of oxygen at elevated temperatures poses a substantial safety hazard.

Ensuring that oxygen is stored in a cool, well-ventilated area minimizes these risks, mitigating the chance of an accident. Thus, fostering safety protocols regarding the storage of oxygen leads to a more secure environment for handling this critical life-saving resource.