香港地下购物中心氡特性调查。

A survey of radon properties in underground shopping centers in Hong Kong.

作者信息

Yu K N, Young E C, Stokes M J, Lo C H

机构信息

Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong.

出版信息

Appl Radiat Isot. 1997 Jun;48(6):863-6. doi: 10.1016/s0969-8043(96)00282-5.

DOI:10.1016/s0969-8043(96)00282-5

PMID:9204530

Abstract

A number of radon-related properties have been surveyed in underground shopping centers in Hong Kong. These parameters include the radon concentration, the total potential alpha energy concentration of radon progeny, the equilibrium factor and the unattached fraction of radon progeny. The mean values recorded for these were 29.2 +/- 7.8 Bq/m3, 3.60 +/- 1.53 mWL, 0.46 +/- 0.16 and 0.05 +/- 0.03, respectively. Based on these figures, we have calculated the average radon dose received by employees in an underground shopping center in Hong Kong to be 0.22 mSv/yr, which represents an approximate increase of 8% over the total dose of about 2.7 mSv/yr received by the average person in Hong Kong.

摘要

香港已对多个地下购物中心的一些与氡有关的特性进行了调查。这些参数包括氡浓度、氡子体的总潜在α能量浓度、平衡因子以及氡子体的未附着部分。所记录的这些参数的平均值分别为29.2±7.8贝克勒尔/立方米、3.60±1.53毫瓦·小时、0.46±0.16以及0.05±0.03。基于这些数据，我们计算出香港一个地下购物中心员工所接受的平均氡剂量为0.22毫希沃特/年，这比香港普通民众每年约2.7毫希沃特的总剂量大约增加了8%。