2009~2012年度兰州地区大气气溶胶中^(210)Pb浓度监测  

Monitoring the Variation of ^(210)Pb Concentration in Cerosol of Lanzhou from 2009-2012

作　　者：王赟[1] 邬家龙[1] 孙卫[1] 罗伟立[1] 张飙[1] 王延俊 

机构地区：[1]甘肃省疾病预防控制中心,兰州730000

出　　处：《核电子学与探测技术》2014年第1期114-116,共3页Nuclear Electronics & Detection Technology

摘　　要：为获得兰州地区近年来大气气溶胶中放射性核素210Pb浓度变化情况。2009~2012年度利用大流量大气气溶胶采样器采集样品,使用低本底高纯锗γ谱仪测定采集样品中210Pb。获得了监测期间:兰州地区大气气溶胶中210Pb浓度的变化范围为0.12~4.33 mBq·m-3,平均值为0.75±0.42 mBq·m-3;兰州地区大气气溶胶中放射性核素210Pb浓度冬季含量较高,多雨的5~9月份含量较低;兰州地区成人210Pb的年吸收剂量为6.68×10-6Sv。In order to obtain the variation of 210 Pb concentration in aerosol of Lanzhou .The aerosol samples were collected on the filter by a high volume air sampler .The 210 Pb concentration was measured by low background HPGe gamma spectrometer .During the monitoring period , the 210 Pb concentration varied from 0.12 to 4.33 mBq m -3with an average of 0.75 -0.42 mBq m-3 in the Lanzhou aerosol;The atmospheric210Pb concentrations were higher in winter and lower from May to September in Lanzhou;The annual effective dose for inhalation of 210 Pb to the adult in Lanzhou was 6.68 ×10 -6 Sv.

关 键 词：兰州地区 大气气溶胶 210Pb浓度 

分 类 号：R81[医药卫生—放射医学]