What is the main hazard associated with gas leaks in enclosed spaces?

The primary hazard associated with gas leaks in enclosed spaces is that they can lead to both explosions and asphyxiation. When gas accumulates in a confined area, it creates an environment that is highly dangerous.

If the concentration of gas reaches a certain level and comes into contact with an ignition source, it can create an explosive situation. This is particularly concerning in enclosed spaces where there are often limited pathways for gas to dissipate, increasing the likelihood of reaching dangerous concentrations.

At the same time, the presence of gas, particularly if it is a gas like natural gas or propane, can displace oxygen in the air. This displacement poses a serious risk of asphyxiation to anyone in that space, as inhaling gas that lacks sufficient oxygen can lead to unconsciousness or even death.

Therefore, both the risk of explosion and the risk of asphyxiation must be taken into account when evaluating the hazards associated with gas leaks in enclosed spaces, making the correct answer a consideration of both dangers.