The article presents approaches to the establishment of criteria (requirements) of radiation safety to the
decontaminated areas of the territory, buildings and decommissioned facilities of use of atomic energy
and other types of practical activities with sources of ionizing radiation. The main directions of further
use of the decontaminated areas of the territory, buildings, and constructions, including 5 scenarios of
restricted and unrestricted use, are determined; the criteria of radiation safety in the term of a dose
constraint of a critical group of the population in 0.3 mSv/year living or working on decontaminated
objects are established; the controlled parameters of the radiation situation and their levels, as well as the
list of radionuclides subject to control are justified. The article presents the values of specific activity
(Bq/kg) of residual radioactive contamination of soils and materials of buildings and structures, the
radiation dose to the population in which will not exceed 0.3 mSv/year. Based on the presented data,
draft sanitary rules and guidelines have been developed.
Origin and age of an ongoing radioactive contamination of soils near La hague reprocessing plant based on 239+240Pu/238Pu and 241Am/241Pu current ratios and 90Sr and Ln(III) soil contents
