摘要
本文收集、分析和研究了我国已发表的空气中氡及其短寿命子体的资料。室外和室内2 2 2 Rn浓度按人口加权平均值的典型值分别为 1 4Bq·m- 3和 2 4Bq·m- 3。省市室外平均值最高和最低值相差约1 2倍 ,室内相差约 6倍。室内和室外最高的都是福建。室外最低的是台湾 ,室内最低的是吉林。室内钍射气子体引起的照射值得引起注意 ,其中特别是以泥土为墙体的建筑物 ,在很多情况下钍射气子体所致年有效剂量高于 (有时甚至远高于 )氡及其子体所产生的剂量。
This paper Collects and analyses published data on Radon and its short-lived decay products in air in China. The population-weighted average values of outdoor and indoor 222Rn concentration (typical) are 14 Bq·m -3 and 24 Bq·m -3, respectively. The ratio of maximun outdoor average concentration in provinces to the minimun is about 12, the ratio of indoor concentration is about 6. The highest outdoor and indoor values are in Fujian. The lowest outdoor value is in Taiwan, the lowest indoor value in Jilin. The annual effective dose from thoron and its short-lived decay products in soil houses is higher than the dose from Radon and its short-lived decay products in most situations. (
出处
《辐射防护》
CAS
CSCD
北大核心
2003年第3期129-137,183,共10页
Radiation Protection
