Simultaneous determination of radon, thoron and their progeny in dwellings

被引：31

作者：

Dwivedi, KK ^{[1
]}

Mishra, R

Tripathy, SP

Kulshreshtha, A

Sinha, D

Srivastava, A

Deka, P

Bhattacharjee, B

Ramachandran, TV

Nambi, KSV

机构：

[1] NE Hill Univ, Dept Chem, Shillong 793003, Meghalaya, India

[2] Gauhati Univ, Dept Phys, Guwahati 781014, India

[3] Bhabha Atom Res Ctr, Environm Assessment Div, Bombay 400085, Maharashtra, India

来源：

RADIATION MEASUREMENTS | 2001年 / 33卷 / 01期

关键词：

Atmospheric radiation - Dosimeters - Radiation detectors - Radioactivity - Seismology;

D O I：

10.1016/S1350-4487(00)00131-1

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

It has been well recognised all over the world that inhalation of indoor radon (Rn-222), thoron (Rn-220) and their daughter products contribute a major fraction of total dose to human beings from all possible sources of natural radioactivity. North-eastern region being in a zone of high seismicity, the indoor radon and thoron map of the region will provide a valuable database for any study related to radon and thoron anomalies. Radon enters living area mainly through floor from subsoil and building materials, and starts accumulating in poorly ventilated dwellings. So, concentration of radon and its progeny are usually higher in indoor air than in outdoor air. In the present work, an attempt has been made to assess the levels of radon, thoron and their progeny in dwellings of a few cities in the north-eastern region of India using a passive time integrated monitoring with the help of twin chamber dosimeters having LR-115 as the detector. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：7 / 11

页数：5

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