What is the best method to prevent internal contamination?

The best method to prevent internal contamination is the implementation of strict hygiene practices. Internal contamination occurs when radioactive materials are ingested, inhaled, or absorbed through the skin. Maintaining strict hygiene practices, such as regular handwashing, avoiding eating or drinking in contaminated areas, and using appropriate decontamination procedures, significantly reduces the risk of intake of harmful radioactive substances.

Protective clothing plays a role in minimizing external exposure but does not directly prevent internal contamination. Respiratory protection is crucial in environments where airborne radioactive particles may be present, as it helps prevent inhalation. However, it is only effective in specific scenarios and does not address other routes of potential contamination, such as ingestion or absorption through the skin.

Regular health screenings are important for monitoring health status and identifying contamination after exposure, but they do not actively prevent internal contamination from occurring in the first place. Therefore, while each of these options contributes to overall safety, practicing strict hygiene is the most effective way to prevent internal contamination.