【摘要】 本文报告浙江省土壤中天然放射性核素含量的调查结果。全省共采集土壤样品533个,分析方法采用γ谱法。结果表明:浙江省土壤中天然放射性核素含量随地区、地形、地貌和土壤类型而变,按网格点的平均含量为:²³⁸U,46.3Bq/Kg（范围为13.5—123.0B_q/Kg）;²²⁶Ra,43.4Bq/Kg（17.4—150.2B_q/Kg）;²³²Th,63.0Bq/Kg（26.3—156.5B_q/Kg）;⁴⁰K,771B_q/Kg（118—1603B_q/Kg）。更多还原

【Abstract】 This paper reports the results of survey of natural radionuclidein soil in Zhejiang province.533 soil samples were collected and analysed byγ spectrometry.The results show that the contents are different with areas,topography,land forms and soil types,the average concetration of ²³⁸U,²²⁶Ra,²³²Th,⁴⁰K are 46.3（13.5—123.0）,43.4（17.4—150.2）,63.0（26.3—156.5）,and 711（118—1603）Bq/kg,respectively.更多还原