What is considered a "major leak" in the context of Transportation of Dangerous Goods?

In the context of Transportation of Dangerous Goods, a "major leak" refers to a significant loss of dangerous goods that can pose an immediate risk to safety and health. This definition underscores the potential severity of the situation, as major leaks typically involve quantities of hazardous materials that could lead to dangerous exposure to toxic substances, environmental contamination, or even the possibility of accidents causing injury or harm to individuals nearby.

Recognizing a major leak is crucial for timely and effective response actions, which may include evacuation, containment measures, and notifying emergency services. This emphasizes the importance of proper training and awareness among personnel involved in the transport of dangerous goods, so they can identify and respond to major leaks appropriately to mitigate the risks associated with such incidents.

The other answer choices lack the scope and seriousness associated with a major leak. A small spill that can be contained easily does not meet the criteria for a major leak, as it suggests that the incident is manageable and poses minimal risk. The release of non-toxic materials does not classify as a major leak because the focus is strictly on dangerous goods that could harm health and safety. Lastly, an accidental drop of a package may lead to a leak but does not intrinsically denote the severity or consequences of that event without additional context regarding