INDOOR RADON CONCENTRATION AND RISK ASSESSMENT IN SOME DWELLINGS OF OBUASI, MINING TOWN

被引：6

作者：

Opoku-Ntim, Irene ^{[1
,2
]}

Andam, Aba Bentil ^{[2
]}

Roca, Vicenzo ^{[3
,4
]}

Fletcher, J. J. ^{[2
]}

Akiti, T. T. ^{[2
]}

机构：

[1] Sch Nucl & Allied Sci, Dept Nucl Sci & Applicat, POB AE1, Atomic, Accra, Ghana

[2] GAEC, NNRI, Nucl Applicat Ctr, Dept Phys, POB LG80, Legon, Accra, Ghana

[3] Univ Napoli Federico II, Dipartimento Fis, Naples, Italy

[4] Ist Nazl Fis Nucl INFN, Sez Napoli, Dipartimento Fis, Naples, Italy

来源：

RADIATION PROTECTION DOSIMETRY | 2020年 / 188卷 / 01期

关键词：

SEASONAL-VARIATION; GAS;

D O I：

10.1093/rpd/ncz254

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Rn-222 concentration indoors was measured in 40 dwellings in the Obuasi municipality, a gold-mining town in the Ashanti Region of Ghana using the LR 115 type II strippable detectors for the two major seasons in Ghana, rainy and dry. The detectors were placed in the bed rooms of dwellers for 6 months each. Average indoor radon concentration varied from 63.9 to 364.9 Bqm(-3) with a mean of 152.2 +/- 10.9 Bqm(-3) in the rainy season and 26.1-119.0 Bqm(-3) with a mean of 50.5 +/- 3.9 Bqm(-3) in the dry season. The effective dose of 3.90 +/- 0.3 mSvy(-1) for the rainy season and for the dry season, effective dose of 0.6 mSvy(-1) were recorded. The seasonal variation of Rn-222 concentration indoors showed higher values in the rainy season than the dry season. A dependence was observed between the type of building materials used in building and the indoor radon level.

引用

页码：30 / 37

页数：8

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