Radiation Safety Training

How the Doses for Prompt Radiation Effects Compare with Federal Dose Limits

LD 50/60 400 -  500 rem (approx.)  See Note 1
Federal Whole Body Dose Limit 5 rem per year  See Note 2

Note 1:  LD 50/60 is the dose which, when delivered in a very short period of time (typically seconds to minutes), will cause the death of 50% of a population within 60 days.

Note 2:  The Nuclear Regulatory Commission's Whole Body Dose Limit applies to radiation exposures which result in the irradiation of deeper radiation-sensitive structures in the body, especially blood-forming tissues.

Back to the Biological Effects Module


Miami University's Radiation Safety Office would like to thank Sue Dupre and Princeton University for the training materials used in this website.

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