What is the proper sequence for decontamination of a radioactive spill?

The proper sequence for decontamination of a radioactive spill is to start from the least contaminated areas and work towards the most contaminated areas. This method is designed to prevent the spread of contamination into clean areas while ensuring that the most contaminated zones are addressed last and more thoroughly.

When beginning the decontamination process in the least contaminated areas, any contamination can be effectively contained, reducing the risk of cross-contamination. This systematic approach also allows responders to monitor the levels of contamination as they progress. By first addressing the least contaminated sections, the cleanup teams can establish a clean perimeter and ensure that more contaminated materials do not migrate into previously decontaminated spaces.

This method is essential in maintaining safety and control during the decontamination process. Starting with the areas that have the least exposure reduces the chances of spreading contaminants to other locations and makes it easier to manage the decontamination effort overall.