Monitoring of the 14C activity in the environment of the nuclear power plant Krsko in Yugoslavia

Measurements of 14C activity of atmospheric carbon dioxide, vegetables and tree rings have been performed in the surroundings of the nuclear power plant Krsko in Yugoslavia since 1984. An average excess of 2% above the reference point activity was observed 1,5 km from the plant smokestack during normal periods of reactor operation. No influence of the power plant radiocarbon release was observed on the tree ring activity. Calculations of the 14C release from the power plant was estimated at 0,1 TBq/a. No general increase of atmospheric 14C activity was observed after the Chernobyl accident, even though during short sampling periods the 14C activity increased up to 20% above the pre-accident activity. 4 refs., 3 figs. (Author)