重庆市高新区环境γ放射性监测与评价  

Assessment of Environmental Radioactivity in the Hi-tech District in Chongqing Municipality

作　　者：周勤[1] 张晟[2] 郑筱梅[1] 李自林[1] 

机构地区：[1]重庆师范学院化学系,重庆400047 [2]重庆市环境科学研究院,重庆400020

出　　处：《重庆师范学院学报（自然科学版）》2002年第3期55-58,共4页Journal of Chongqing Normal University(Natural Science Edition)

摘　　要：按国家标准 (GB870 3 88)评价方法 ,采用监测仪器对重庆市高新区环境放射性水平γ辐射剂量进行了监测。监测结果 :重庆市高新区原野γ辐射剂量率均值为 6 .3× 10 -8Gy/h ;道路γ辐射剂量率均值为 5 .3× 10 -8Gy/h ;建筑物室内γ辐射剂量率均值为 8.6× 10 -8Gy/h。道路和建筑物γ辐射剂量率的高低和材料有关。结果表明高新区内人均年有效剂量当量为 0 .72 77mSv ,低于国家对公众个人的剂量值 1mSv的标准 ,仅为限制剂量当量值的 72 .8% ,属于较低水平。高新区内自然环境状况下的放射性对人群健康基本不会产生大的影响。The γ radiocativity was monitored and assessed according to the National Standard(GB8703-88).It indicates that the monitioring results of environmental γ radioactivity level in the hi tech district in Chongqing are the average of γ radiation dose rate in land 6.3×10 -8 Gy·h -1 ,the γ radiation dose rate mad 5.3×10 -8 Gy·h -1 ,8.6×10 -8 Gy·h -1 in hilding γ radiation doses of land and building are related to the structural material.Average of effective dose equivalent is 0.727 7 mSv that is below the country limiting standard.Natural radioactivity in the hi tech district in Chongqing will not do harm to people′s health.

关 键 词：重庆市 高新区 环境影响评价 放射性污染 Γ辐射剂量率 环境监测 放射性核素 

分 类 号：X837[环境科学与工程—环境工程] X820.3