Which type of hazard is most likely associated with flammable gases?

Flammable gases pose a significant risk of explosion due to their ability to easily ignite when mixed with air and exposed to an ignition source, such as sparks or flames. When these gases are released, they can create an explosive atmosphere, especially in enclosed spaces where the concentration of gas can exceed the lower explosive limit. An explosion can result from a rapid combustion of the gas, leading to a violent release of energy and potentially catastrophic effects.

While chemical burns, radiation, and toxic inhalation are serious concerns in hazardous material situations, they are not primarily associated with the behavior of flammable gases. Chemical burns typically arise from corrosive substances rather than from flammable gases themselves. Radiation is not a factor unless dealing with materials that emit radiation. Toxic inhalation can certainly occur with certain flammable gases, but the immediate threat of explosion makes it the most likely hazard associated directly with flammable gases. Understanding this risk is crucial for ensuring proper safety measures and emergency response when handling or encountering flammable gases.