Define "contamination" in the context of HAZMAT.

In the context of HAZMAT, "contamination" refers specifically to the introduction of hazardous materials into the environment or onto human skin. This definition encompasses a broad range of scenarios where harmful substances can adversely affect living organisms, ecosystems, and the environment as a whole.

When hazardous materials are released into an area—whether through spills, leaks, or other means—they can contaminate soil, water, air, and surfaces that people may come into contact with. This can pose serious health risks, including immediate harm as well as long-term effects due to exposure.

It is crucial to recognize that contamination does not only refer to direct exposure but also includes the broader implications of hazardous substances entering environments, where they can persist and cause ongoing issues. This understanding is foundational in HAZMAT training, as it emphasizes the need for prevention, immediate response, and proper safety protocols in the event of potential or actual contamination incidents.

The other options address various aspects related to hazardous materials but do not capture the specific definition of contamination as it pertains to the release and introduction of harmful substances.