What are secondary hazards?

Secondary hazards refer to risks that can arise as a consequence of an initial event, particularly when something disrupts their stable state. In the context of the choice provided, secondary hazards are specifically materials that are not inherently dangerous under normal conditions but can become very hazardous if they are disturbed. This is often the case with explosive materials: they remain safe while undisturbed but present a significant danger if they are ignited or otherwise affected by an explosion or other incidents.

Understanding that secondary hazards hinge on the idea of a triggering event is crucial. This contrasts with the other choices, which do not accurately capture the nature of secondary hazards. The explosive materials stored safely are a primary hazard if they are not handled correctly; items requiring constant monitoring relate more to ongoing risk management rather than secondary hazards; and evacuation procedures are responses to threats rather than the definition of a hazard itself. Recognizing the context and implications of secondary hazards is vital for effective crisis management and ensuring safety protocols are adequately informed and established.