Field measurement of soil radon concentrations was carried out and the corresponding soil samples were collected in Zhuhai area for analyzing uranium content. The linear simulation was used to analyze the measured data. The result shows that soil radon concentrations are positively correlated with the uranium content of the soil. The probability of soil radon concentrations greater than 20 000 Bq/m3 has a good linear relationship with uranium content of soil. The level of the soil radon concentrations is influenced by a number of factors and the measured values are not stable, and hence the study of the probability of the excess is more scientific. According to the relational model and risk classification, we can quickly evaluate regional soil radon hazards.
[1] 孙世荃.人类辐射危害评价[M].北京:原子能出版社,1996.[2] Ford E S,Ehemani C R,Sigel P Z,et al.Radon awareness and testing behavior: findings the behavioral risk factor surveillance system[J].Health Phys.,1996,70(3):363-370.[3] 陈明光,何永金.室内氡的危害及防氡降氡措施[J].环境工程,1998,16(1):29-32.[4] 陈兴安.人类环境中的氡——IAEA科研协作总结会概况[J].辐射防护,1996,16(5):396-399.[5] 郭秋菊,许寿元.氡的危害及剂量估算[J].中华放射医学与防护杂志,2004,24(1):85-87.[6] 胡恭任.居室环境中氡的危害、来源及其防护[J].福建建筑,2002,19(5):44-46.[7] Yu K N,Young E CM,Li K C.A study of factors affecting indoor radon properties[J].Health Phys.,1996,71:179-184.[8] Varley N R.Radon in soil gas and its relationship with some major faults of SW England[J].Environmental Geochemistry and Health,1993,15( 2/3):145-151.[9] 王作元.氡的防护和氡照射流行病学研究[J].辐射防护,1998,18(5/6):184、284、384、584.[10] UNSCEAR.UNSCEAR 1993年报告——电离辐射源与效应[M].北京:原子能出版社,1995.[11] 朱立,刘海生,肖桂义,等.云南省个旧地区氡地质填图测量方法比较分析[J].岩矿测试,2001,20(1):1-6.[12] 陈智营.珠海市区环境氡的监测及研究[J].中山大学学报论丛,1998,(6):156-159.[13] Kemski J,Klingel R,Siehl A,et al.Radon transferfrom ground to houses and prediction of indoor radon in Germany based on geological information//McLaughlin JP,Simopoulos S E,Steinhausler F.Radioactivity in the environment 7.The Natural Radiation Environment VII.Elsevier,Amsterdam,2005:820-832.[14] 王喜元.GB50325—2001民用建筑工程室内环境污染控制规范[S].[15] Mark A S,Terje S,Aud V S,et al.Large-scale radon hazard evaluation in the Oslofjord region of Norway utilizing indoor radon concentrations,airborne gamma ray spectrometry and geological mapping[J].Science of the total environment,2008,407:379-393.
