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Related Experiment Videos

Removable surface contamination at a biomedical research institution

R C Klein1, E Party, E L Gershey

  • 1Office of Laboratory Safety, The Rockefeller University, New York, NY 10021, USA.

Health Physics
|February 1, 1997
PubMed
Summary

A campus-wide survey found minimal radioactive surface contamination in biomedical labs. Most samples were below ten times background, indicating contamination is not a significant issue with proper procedures.

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Area of Science:

  • Biomedical Research
  • Radiation Safety
  • Laboratory Contamination

Background:

  • Radioactive materials are routinely used in biomedical research.
  • Assessing surface contamination is crucial for laboratory safety.

Purpose of the Study:

  • To quantify removable surface contamination in biomedical research laboratories.
  • To evaluate the extent and nature of radioactive contamination in a campus-wide setting.

Main Methods:

  • Conducted an unannounced, campus-wide survey of surface contamination.
  • Collected 1,090 wipe samples from 45 large biomedical research laboratories.
  • Analyzed samples from laboratories using various radioisotopes (e.g., 3H, 14C, 32P).

Main Results:

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  • Contamination levels followed a log-normal distribution.
  • Approximately 90% of samples showed contamination below ten times background levels.
  • Contamination was minimal and primarily localized to directly handled surfaces and equipment.

Conclusions:

  • Radioactive surface contamination is not a significant problem in these biomedical research laboratories.
  • Effective standard operating procedures and good work practices are key to preventing contamination.
  • Current safety protocols appear sufficient for managing radioactive materials.