How is "contamination" defined in radiation safety?

In radiation safety, "contamination" refers specifically to the presence of radioactive material in an environment, which can include surfaces, objects, or individuals. This presence can result from accidental releases, spills, or improper handling of radioactive substances. Contamination poses a significant risk because it can lead to both internal and external exposure to radiation.

Understanding this definition is essential in radiation safety practices, as effective contamination control measures are crucial for protecting individuals and the environment from undesirable radiation exposure. For example, when a radioactive material is found in an unexpected location, it necessitates immediate action to decontaminate the area to prevent spread and mitigate health risks.

Other options address relevant concepts in radiation safety but do not encapsulate the specific definition of contamination itself. For instance, control measures and procedures may be employed to manage exposure, and the collection of radioactive waste is part of waste management practices, not related to contamination directly.