The soil around the Qinshan and Daya Bay nuclear power plants were used in this study. The 90Sr was spread into the soil by irrigation. The amount of 90Sr spread were 0. 037,0. 37,3. 7,37 and 370 Bq per gram soil respectively.

• 选择了秦山、大亚湾核电站周围具有代表性的农业土壤；随灌水向土壤中施入~(90)Sr；施入量分为每克土含~(90)Sr:0.；037Bq；