A person has a radioactive material on their clothing. What is the term for this?

The term that describes a situation where radioactive material is present on a person's clothing is contamination. In the context of hazardous materials, contamination refers to the unwanted presence of hazardous substances on surfaces such as clothing, skin, or equipment. This means that the radioactive materials have adhered to the fabric, posing a risk to the individual and potentially to others if not properly managed.

Contamination is distinct from exposure, which refers to the contact or interaction that a person has with a hazardous material, but does not imply that the substance is physically on them. Pollution typically refers to broader environmental impacts caused by hazardous substances, while toxicity is a measure of how damaging a substance can be to living organisms. These terms deal with different concepts related to hazardous materials and their effects.