What does being 'Contaminated' mean in emergency decontamination context?

In the context of emergency decontamination, being 'Contaminated' specifically refers to the transfer of hazardous materials from a source, such as a spill or leak, onto various systems, equipment, or individuals. This definition highlights that contamination involves the presence of harmful substances where they should not be, indicating a significant risk in emergency scenarios.

Understanding this concept is crucial in hazardous materials incidents because effective decontamination seeks to remove those contaminants to prevent further exposure or harm. Identifying how contamination occurs helps first responders take appropriate action to mitigate risks associated with hazardous materials.

The other options focus on processes unrelated to the initial transfer of harmful materials. For instance, cleaning and sanitizing implies a removal process that occurs after contamination, whereas evaluating individuals for exposure deals with assessing any health effects after contamination has potentially occurred. Identifying harmful substances encompasses the recognition of what might cause contamination but does not directly explain the process of contamination itself.