[en] Czechoslovakia's territorial radiation burden is derived from the assumption that in 2000, the installed nuclear reactor power in the country will be 35000 MW. Liquid wastes are not considered to be significant. For the so-called closed system gaseous emissions are estimated to attain a value of 0.36 Ci/km² for ³H and 30.6 Ci/km² for ⁸⁵Kr. The average dose exposure due to ³H in the closed system will be 546.eta man.rem/MW by inhalation and 252.eta man.rem/MW by ingestion, where eta is the coefficient of penetration efficiency. Based on the concentration of emissions in the atmosphere and certain assumptions, dose exposures from ³H and ⁸⁵Kr are predicted to be 4.19x10^-1 and 24.2 man.rem/MW respectively. The estimation of the average radiation dose made possible the prognosis of the effect of the development of nuclear power on the magnitude of biological risks (genetic defects, leukemogenic and carcinogenic effects) and the evaluation of the contribution of spent fuel processing plants to these risks. It is concluded that for normal operation, the average risk of the biological damage of the population in Czechoslovakia in the year 2000 may be expressed by a factor less than 5x10^-6. (author)