苏州市区居室内氡浓度及其致居民剂量估算  

Indoor Radon Concentration and Estimation of Exposure Dosage in Urban Area of Suzhou City

作　　者：涂彧[1] 刘犁[1] 俞荣生[2] 盛乐[3] 张兵波[4] 姜德智[1] 

机构地区：[1]苏州大学放射医学与公共卫生学院,江苏苏州215007 [2]苏州市疾病预防控制中心,江苏苏州215002 [3]苏州市卫生监督所,江苏苏州215006 [4]苏州大学材料学院,江苏苏州215003

出　　处：《工业卫生与职业病》2003年第4期218-219,共2页Industrial Health and Occupational Diseases

基　　金：苏州市科技局 2 0 0 1年资助项目 (SS0 10 6)

摘　　要：目的　了解苏州市区居民室内氡浓度及所致剂量。方法　采用双滤膜法 ,使用FT - 6 4 8型测氡仪 ,采样 15min ,间隔 1min ,计数 15min。结果　苏州市区居室内氡浓度均值为 4 1 7Bq/m3 ,平衡当量氡浓度为 16 7Bq/m3 ,致居民支气管上皮组织、肺、性腺、骨髓及骨表面细胞的年吸收剂量分别为 14 2 1 7,2 85 6 ,2 1,2 4 ,2 4 μGy/a,全身年有效剂量 1 0 5 2mSv ,通风对居室内氡水平有明显影响。结论　苏州市区居室内氡浓度与全球平均水平 (4 0 0Bq/m3 )Objective To investigate the indoor radon concentration and to estimate the exposure dosage in urban area of Suzhou city.Methods Double filters technique and FT-648 radon detector were used to sample for 15 min.with an interval of 1 min.and count for 15 min.Results The average indoor radon concentration in urban area of Suzhou city was 41 7 Bq/m 3.Equilibrium equivalent radon concentration was 16 7 Bq/m 3.Absorbed dosage per year for residents in bronchia epidermis,lung,gonad,bone marrow and bone surface cells were 1 421 7 ,285 6,2 1,2 4,and 2 4 μGy/a respectively.Average effective dosage per year for whole body was 1 052 mSv/a.Ventilation impacts obviously on the level of indoor radon concentration.Conclusions The indoor radon concentration in urban area of Suzhou city approaches the average world indoor radon concentration.

关 键 词：居室内氡浓度 有效剂量 苏州市区 双滤膜法 

分 类 号：R126[医药卫生—环境卫生学] X837[医药卫生—公共卫生与预防医学]