放射性污染土壤分层取样检测

Study on Stratified Sampling and Detection of Radioactive Contaminated Soil

介绍了受放射性污染场地分层土壤的取样检测方法。该方法对不同深度分层土壤的β计数率介于6.34~86.9c/m,最低值与最高值之间相差1个量级以上,且最低值处于正常环境本底水平,充分表明建立的分层土壤取样方法能够有效避免样品交叉污染的问题,有助于提升样品的代表性和分析结果的准确性,能够应用于受放射性污染场地的分层土壤取样工作。

This paper introduces the sampling and detection method of layered soil in radioactive contaminated sites.The β counting rates of layered soil with different depths are more than one order of magnitude between the lowest value and the highest value of 6.34~86.9 min^(-1) and the lowest value is at the background level of normal environment.which fully indicates that the established stratified soil sampling method can effectively avoid the problem of cross contamination of samples,and is helpful to improve the representativeness of samples and the accuracy of analytical results.It can be used in layered soil sampling of radioactive contaminated sites.