Mitigation of the effective dose of radon decay products through the use of an air cleaner in a dwelling in Okinawa, Japan

被引：18

作者：

Kranrod, Chutima ^{[1
,2
]}

Tokonami, Shinji ^{[1
]}

Ishikawa, Tetsuo ^{[1
]}

Sorimachi, Atsuyuki ^{[1
]}

Janik, Miroslaw ^{[1
,3
]}

Shingaki, Reina ^{[4
]}

Furukawa, Masahide ^{[4
]}

Chanyotha, Supitcha ^{[2
]}

Chankow, Nares ^{[2
]}

机构：

[1] Natl Inst Radiol Sci, Res Ctr Radiat Protect, Inage Ku, Chiba 2638555, Japan

[2] Chulalongkorn Univ, Dept Nucl Technol, Fac Engn, Bangkok 10330, Thailand

[3] Inst Nucl Phys PAN, PL-31342 Krakow, Poland

[4] Univ Ryukyus, Dept Phys & Earth Sci, Fac Sci, Nishihara, Okinawa 9030213, Japan

来源：

APPLIED RADIATION AND ISOTOPES | 2009年 / 67卷 / 06期

关键词：

Particle size distribution; Radon progeny; Unattached fraction; DIFFUSION-COEFFICIENT; MAXIMUM-LIKELIHOOD; LUNG-CANCER; EXPOSURE; HUMIDITY; FRACTION; PROGENY; THORON;

D O I：

10.1016/j.apradiso.2009.02.087

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Field measurements were conducted to assess the effects of an air cleaner on radon mitigation in a dwelling with a high radon concentration in Okinawa, Japan. The measurements included indoor radon concentration, individual radon progeny concentration, equilibrium equivalent concentration of radon (EECRn), unattached fraction, and size distribution of aerosol-attached radon progeny. These measurements were conducted in a 74 m(3) room with/without the use of an air cleaner. The results showed that the mean radon concentration during the measurement was quite high (301 Bq m(-3)). The operation of air cleaner decreased the radon progeny activity concentration, EECRn and equilibrium factor by 33%. 57% and 71%, respectively, whereas the unattached fraction increased by 174%. In addition, the activity concentration of attached radon progeny in the accumulation mode (50-2000 nm) was obviously deceased by 42%, when the air cleaner was operated. According to dosimetric calculations, the operation of air cleaner reduced the effective dose due to radon progeny by about 50%. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1127 / 1132

页数：6

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