Problems of Chernobyl

This digest represents the materials of elaborations carried out in the course of implementing contractual works so as the scientific investigations that were received in 1999. Together with the traditional works on the research of the fuel-containing materials physical and chemical properties, determination of radiation in Shelter premises and geological environment of Shelter local zone, it should be distinguished the works dedicated to evaluations of risks, safety analyses during implementing works on stabilisation and transformation of 'Ukryttia' into ecology safe system, methods of evaluation of inhalation and external irradiation, biological protection etc. The results obtained are of grate significance for subsequent planning and caring out of works in the 'Ukryttia' radiation dangerous conditions