Retrospective determination of radon in houses
Retrospective determination of radon in houses
复制标题
房屋中氡气的回顾性测定
作者：
C. Samuelsson
20世纪70年代，统计数据证明，接触氡子体产品会导致矿物质中的肺癌1。自那以后，在房屋中发现了高浓度的氡子体。今天开始的任何流行病学氡研究都受到阻碍，因为由于暴露和肿瘤表现之间的潜伏期很长，很难获得相关的暴露数据。在这里，我提出了一种测量累积氡子体水平的方法，它利用了这样一个事实，即第一个长寿命的氡子体(210Pb，半衰期22岁)会牢固地附着在房子的玻璃表面上。通过测量阿尔法发射体210Po的表面活度浓度，可以估计时间积分氡或氡子体的浓度。因此，室内玻璃可以作为住宅中氡的长期追溯性或前瞻性暴露仪。
In the 1970s it was statistically proved that exposure to radon daughter products caused lung cancer in miners1. High concentrations of radon daughters have since been found in houses. Any epidemiological radon study begun today is hampered because relevant exposure data are difficult to obtain owing to the long latency period between exposure and tumour manifestation. Here I present a method for measuring cumulative radon daughter levels, which takes advantage of the fact that the first long-lived radon daughter (210Pb, half-life 22 yr) becomes firmly attached to glass surfaces in a house. By measuring the surface activity concentration of the alpha-emitter 210Po, the time-integrated radon, or radon daughter, concentration can be estimated. Thus, indoor glass can act as a long-term retrospective or prospective exposure meter for radon in dwellings.