摘要
目的 了解室内空气中氡的本底水平 ,找出氡的不同来源对室内的相对贡献。方法 REM - 2型氡析出率仪对地面和墙壁表面进行氡析出的测量 ,利用FD - 12 5氡钍分析仪对室内用水和煤气中氡的含量作了分析 ,探讨了太原市居室内空气中氡本底水平。结果 室内氡主要是由土壤、建材中析出的 ,其次才是室外空气中氡的渗入 ,室内用水和煤气中氡贡献很小。结论 根据调查结果 ,进行室内空气中氡对人体健康危害分析和剂量评价 ,建立了室内氡本底水平的数据库 。
Objective To find the background atmospheric radon level and relative attribution of indoor radioactive contamination from different sources.Methods REM-2 Radon Emission Apparatus was used to measure radon emitted from ground and wall surface.FD-125 Rn-Th Analyzed was used to investigate the radon level in water and coal gas.Results Results indicated that the radioactive contamination mostly emitted from soil and building material.The other part was from outdoor atmosphere.Very little was from water and coal gas.Conclusions From the results of samples,the database for indoor radon background was set up providing criteria for protective measure might be taken in the future.
出处
《工业卫生与职业病》
CAS
CSCD
北大核心
2005年第2期92-95,共4页
Industrial Health and Occupational Diseases
关键词
室内氡
氡析出率
辐射剂量
Indoor radon
Radon emission rate
Radioactive dosage
