2004、2009、2011及2013-2018年我国表土中137Cs浓度数据集

本数据针对全国包括31个省市及自治区，通过实验获得了表土中137Cs的环境放射性分布的数据，数据以地市级行政单元为主。数据集包括1个数据表，326条记录，主要通过对样品采集、前处理以及伽马能谱测定方法获得，数据通过实验室比对的方式进一步完善，并采用协议共享。This dataset covers 31 provinces, municipalities directly under the Central Government, and autonomous regions across China. It documents the environmental radioactive distribution of 137Cs in topsoil obtained through experimental measurements, with the data primarily organized at the prefecture-level administrative unit level. The dataset consists of 1 data table containing 326 records, which was mainly acquired via sample collection, pre-treatment, and gamma spectrometry determination. It was further refined through laboratory intercomparison, and is shared under agreed protocols.