600MWe核电站正常运行工况下气态排出物弥散模式在中国核工业三十年辐射环境质量评价的基础上尝试给出了混合释放年均大气扩散因子的数学表达式。计算中考虑了静风影响及下述诸因子影响的修正:混合层,干、湿沉积,放射性衰减,建筑物影响等。并能给出下述各照射途径的剂量:烟羽浸没外照射,烟羽吸入内照射,地表沉积外照射,食 600MWe Nuclear Power Station under normal operating conditions of gaseous effluent dispersion mode of China’s nuclear industry in the past 30 years based on the evaluation of the quality of the radiation environment to give mixed release average annual atmospheric dispersion factor of the mathematical expression. The calculations take into account the effects of static winds and the effects of the following factors: mixed layers, wet and dry deposition, radioactive decay, building effects, etc. And can give the dose of the following radiation routes: external plume plume immersion, internal plume smoke inhalation, surface deposition of external radiation, food