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. April Newsletter
. April Journal
Upcoming Events
. 2010 Summer Professional Development School
Internal Dosimetry
23 - 26 June 2010
Idaho State University, Pocatello, Idaho
. International Conference on Radiation Protection in Medicine
1-3 September 2010
Varna, Bulgaria
. 2010 Meeting of the Air Monitoring Users Group
4-7 May 2010
Las Vegas, NV
20 March 2010

What Is Radioactive Contamination?

If radioactive material is not in a sealed source container, it might be spread onto other objects. Contamination occurs when material that contains radioactive atoms is deposited on materials, skin, clothing, or any place where it is not desired. It is important to remember that radiation does not spread or get "on" or "in" people; rather, it is radioactive contamination that can be spread. A person contaminated with radioactive material will receive radiation exposure until the source of radiation (the radioactive material) is removed.

  • A person is externally contaminated if radioactive material is on the skin or clothing.
  • A person is internally contaminated if radioactive material is breathed in, swallowed, or absorbed through wounds.
  • The environment is contaminated if radioactive material is spread about or is unconfined.
The information and material posted on this Web site is intended as general reference information only. Specific facts and circumstances may alter the concepts and applications of materials and information described herein. The information provided is not a substitute for professional advice and should not be relied upon in the absence of such professional advice specific to whatever facts and circumstances are presented in any given situation. Answers are correct at the time they are posted on the Web site. Be advised that over time, some requirements could change, new data could be made available, or Internet links could change. For answers that have been posted for several months or longer, please check the current status of the posted information prior to using the responses for specific applications.
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