TY - JOUR
T1 - Bronchial Rn dose survey for residences
AU - Yu, K. N.
AU - Lau, B. M F
AU - Guan, Z. J.
AU - Lo, T. Y.
AU - Young, E. C M
PY - 2001
Y1 - 2001
N2 - The bronchial dosimeter for Rn progeny proposed by Yu and Guan in 1998 was employed to survey the bronchial dose from Rn progeny in 30 residences in Hong Kong. An average bronchial deposition fraction of Rn progeny was obtained as 0.0334, which gave an average dose conversion factor (DCF) of 8.5mSv WLM-1. The mean values of potential α energy concentration (PAEC) deposited in the tracheobronchial region (PAECT-B), total PAEC in air (PAECT), annual effective dose (E), concentration of Rn gas (RC) and annual dose conversion factor (ADCF) for all the residential sites combined were 0.11±0.05, 3.1±1.4mWL, 1.2±0.5mSvyr-1, 23±10Bqm-3 and 0.055±0.020 (mSvyr-1perBqm-3), respectively, with air-conditioned sites (AC sites) and non-AC sites having significantly different mean ADCF values. The indoor relative humidity affected PAECT and RC PAECT-B and E with high confidence levels (>95%). Copyright © 2001 Elsevier Science Ltd.
AB - The bronchial dosimeter for Rn progeny proposed by Yu and Guan in 1998 was employed to survey the bronchial dose from Rn progeny in 30 residences in Hong Kong. An average bronchial deposition fraction of Rn progeny was obtained as 0.0334, which gave an average dose conversion factor (DCF) of 8.5mSv WLM-1. The mean values of potential α energy concentration (PAEC) deposited in the tracheobronchial region (PAECT-B), total PAEC in air (PAECT), annual effective dose (E), concentration of Rn gas (RC) and annual dose conversion factor (ADCF) for all the residential sites combined were 0.11±0.05, 3.1±1.4mWL, 1.2±0.5mSvyr-1, 23±10Bqm-3 and 0.055±0.020 (mSvyr-1perBqm-3), respectively, with air-conditioned sites (AC sites) and non-AC sites having significantly different mean ADCF values. The indoor relative humidity affected PAECT and RC PAECT-B and E with high confidence levels (>95%). Copyright © 2001 Elsevier Science Ltd.
KW - Deposition
KW - Dose
KW - Dose conversion factor
KW - Dosimeter
KW - Lung model
KW - Rn
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0035155212&origin=recordpage
U2 - 10.1016/S0265-931X(00)00134-X
DO - 10.1016/S0265-931X(00)00134-X
M3 - RGC 21 - Publication in refereed journal
C2 - 11378916
SN - 0265-931X
VL - 54
SP - 221
EP - 229
JO - Journal of Environmental Radioactivity
JF - Journal of Environmental Radioactivity
IS - 2
ER -