【摘要】 本文报道了1983年太湖水、苏州市河水和浅井水中的放射性水平,并与1973年的放射性水平进行了比较。同时对太湖、运河水的可疑放射性污染源——望亭燃煤电厂粉煤灰对其水体的放射性影响进行了全面调查。调查结果表明,1983年太湖水、苏州市河水和浅井水的平均放射性水平是:总α放射性分别为41.4mBq·L^-1、37.6mBq·L^-1和61.4mBq·L^-1;总β放射性分别为91.9mBq·L^-1、101.9mBq·L^-1和857.7mBq·L^-1;铀浓度分别为3.4×10^-7g·L^-1、3.6×10^-7g·L^-1和1.6×10^-7g·L^-1;钍浓度分别为3.5×10^-7g·L^-1、4.9×10^-7g·L^-1和3.9×10^-7g·L^-1。枯水期的放射性水平明显高于丰水期,但均低于1973年的放射性水平。望亭燃煤电厂粉煤灰导致太湖、运河水体的平均放射性水平是:总α放射性分别为87.3mBq·L^-1和140.6mBq·L^-1;总β放射性分别为146.3mBq·L^-1和162.8mBq·L^-1;⁴⁰K放射性分别为162.0mBq·L^-1和130.2mBq·L^-1;铀浓度分别为6.7×1O^-7g·L^-1和5.3×10^-7g·L^-1;钍浓度分别为4.1×1O^-7g·L^-1和4.6×1O^-7g·L^-1。更多还原

【Abstract】 The radioactive levels in Taihu and water body of Suzhou were investigated in 1983. The results of the investigation were compared with that of 1973. In addition, we investigated a suspectable radioactive pollutant-ash of coal powder from Wongting coal-fired power plant and its affect on the water in Taihu and Suzhou section of the Grand Canal. These results show: the average radioactive levels in Taihu are 41.4mBq/L for total a, 91.9mBq/L for total 0, 3.4X10~7g/L for uranium,3. 5 X 10~7g/L for thorium, in Suzhou section of the Grand Canal 37.6mBq/L for total a, 101.9mBq/L for total P, 3.6X10~7g/L for uranium, 4.9X10~7g/L for thorium; in shallow well of Suzhou 61.4mBq/L for total a, 857.7mBq/L for total P, 1.6X10~7g/L for uranium, 3.9 X. 10~7g/L for thorium, The radioactive levels in dry season are higher than that in rainy season, and each of them-is lower than that in 1973.2. The average radioactive levels in Taihu and in Suzhou section of the Grand Canal caused by ash of coal powder from Wongting coal -fired power plant are. 87.3 and 140.6mBq/L for total a respectively; 146.3 and 162.8mBq/L for total p; 162.0 and 130.2mBq/L f or. 6.7XKT7 and 5.3X10~7g/L for uranium and 4.1X10~7 and 4.6X 10~7g/L for thorium.更多还原