新疆和田地区环境天然贯穿辐射水平的调查研究  

INVESTIGATION OF ENVIRONMENTAL NATURAL PENETRATING RADIATION LEVEL IN HOTAN PRE FECTURE OF XINJLANG

作　　者：刘鄂 刘颖 李和 陈文质 

机构地区：[1]新疆辐射环境监理站,新疆环境监测中心站,和田地区环境监测站

出　　处：《干旱环境监测》1995年第4期193-207,共15页Arid Environmental Monitoring

摘　　要：进行了和田地区环境天然贯穿辐射水平的调查研究并得出结论。首次采用网格及加密布点的方法布点．对１０３个测点的原野、道路和建筑物室内进行了外照射贯穿辐射测量。和田地区及所辖各县（市）的外照射贯穿辐射和土壤中天然放射性核素含量属正常本底辐射水平。全地区原野、道路和建筑物室内的陆地γ辐射空气吸收剂量率（×１０－８Ｇｙ·ｈ－１）按网格的均值依次是５．６３±０．８２、５．６６±１．１６和１０．２３±１．０１，原野和室内陆地γ辐射空气吸收剂量率（×１０－８Ｇｙ·ｈ－１）的人口加权均值依次是６．１５±０．９３和１０．８７±１．３０；室外和室内贯穿辐射（不包括中子成分）致空气吸收剂量率（×１０－８Ｇｙ·ｈ－１）按网格（人口加权）的均值依次分别是１０．３７±１．１８（１０．５８±０．７５）和１４．５０±１．１７（１４．８３±１．１３）；天然贯穿辐射（不包括中子成分）所致居民人均年有效剂量当量为９４３．９３±６３．１６（μＳｖ），致居民年集体剂量当量为１０９６．５７±７３．３７（ｍａｎ·ＳＶ）。The method and results of the investigation of natural penetrating radiation level in Hotan prefecture of Xinjiang are presented. Grid and densely measuring points- setting were adopted at 103 measuring points. In whole prefecture, point-weighted average value of natural γ radiation dose rate (×10-8Gy. h-1 ) for field, road and inside buildings in 5.63±0.82, 5.66±1.16 and 10.23±1.01,respectively; population weighted average value of natural γ radiation dose rate for field and inside buildings is 6.15 ±0.93 and 10.87±1.30; The point-weighted (population-weighted) average value of natural penetrating radiation dose rate outside and inside buildings is 10.37±1.18(10.58±0.75) and 14.50±1.17 (14.83±1.13), respectively; The annual effective dose equivalent from natural penetrating radiation is 943.93 ± 63.66 (μSv), and correspondingly, the annuai collective effective dose equivalent is 1096.57±37.37(man. Sv).

关 键 词：天然贯穿辐射 环境调查 新疆和田 

分 类 号：X593.082.4[环境科学与工程—环境工程]