System of radiological protection
discusses the measures used to prevent over exposures to radiation.
Approaches to protection against ionizing radiation are remarkably consistent throughout the world. This is due largely to the existence of a well established and internationally recognized framework.
The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) regularly reviews the natural and artificial sources of radiation in the environment to which people are exposed, the radiation exposure due to those sources, and the risks associated with that exposure. It reports its findings to the UN General Assembly on an ongoing basis.
The International Commission on Radiological Protection (ICRP)
non-governmental scientific organization founded in 1928, which has
regularly published recommendations for protection against ionizing radiation. Its authority derives from the scientific standing of its members and the merit of its recommendations.
It bases its estimates of the probability of fatal cancer mainly on studies of the Japanese survivors of the atomic bombs and their assessment by bodies such as UNSCEAR.