摘要
本文报道江苏省土壤中天然放射性核素含量调查的主要结果。基本与环境陆地γ辐射剂量率调查同位布点,全省共采集土壤样品379个,其中包括25×25 km 网格点土壤样品182个,城镇加密点189个,特殊点8个。测量采用γ能谱法,调查结果表明,江苏省土壤(干样)中天然放射性核素^(238)U、^(226)Ra、^(232)Th、^(40)K 含量按面积加权平均值(±单次测量标准差)分别为35.7(±8.2)、35.8(±7.9)、49.6(±8.5)和568.0(±101.1)Bq/kg。
This paper reports the methods and results of investigation of natural radionuclides in soil inJiangsu Province.The collecting points of soil are same as the measuring points of γ radiation dose rateof environmental ground 379 soil samples were collected and analysed by γ-spectrometry,of which182 points were sited in uniformly distributed networks of size 25×25 km,189 points were moredensely distributed in city and town areas,and 8 points were particularly distributed.The results showthat the area-weighted mean of ^(238)U, ^(226)Ra, ^(232)Th and ^(40)K was 35.7,35.8,49.6 and 568.0Bq·kg^(-1),respectively.
出处
《辐射防护》
CAS
CSCD
北大核心
1992年第6期452-456,共5页
Radiation Protection
关键词
土壤监测
江苏
放射性同位素
含量
Soil
Natural Radionuclide
Content
Investigation
Jiangsu Province
