从 8 0年代中开始我们就对黄河兰州段河水中的总α、总β放射性进行了监测 ,现将历年结果报道如下。采样点位于兰州市区黄河大桥处 ,在黄河主航道采集适当体积的水。制备后的样品用ＦＪ 2 60 3型α、β弱放射性测量装置测量。由测得的总α、总 β净计数率计算出放射性浓度。计 Since the mid-1980s, we have monitored total α and total β radioactivity in the river water of the Lanzhou section of the Yellow River. The results of the past years are reported below. Sampling points are located in the Yellow River Bridge in Lanzhou City, the main channel in the Yellow River to collect the appropriate volume of water. The prepared samples were measured with a FJ 2 60 3 α, β weak radioactivity measuring device. The radioactive concentration was calculated from the measured total α, total β net count rate. meter