Survey of the Rn dose conversion factor for offices

K. N. Yu; B. M F Lau; Z. J. Guan; T. Y. Lo; E. C M Young

doi:10.1016/S0265-931X(00)00088-6

Survey of the Rn dose conversion factor for offices

K. N. Yu, B. M F Lau, Z. J. Guan, T. Y. Lo, E. C M Young

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

3 Citations (Scopus)

Abstract

The Rn dose conversion factor (DCF), which relates the effective dose to the exposure to the potential α energy concentration (PAEC) of inhaled Rn progeny, was surveyed for 23 occupied and air-conditioned offices in Hong Kong using the bronchial dosimeter for Rn progeny proposed by Yu and Guan in 1998. The mean values of PAEC deposited in the tracheobronchial region (PAEC(T-B)), total PAEC in air (PAEC(T)) and the concentration of Rn (RC) for the offices were 0.13 ± 0.12 mWL, 3.4 ± 3.3 mWL and 30 ± 12 Bq m^-3, respectively. An average bronchial deposition fraction of Rn progeny was obtained as 0.037 (range: 0.033-0.051), which gave a DCF of 9.5 (range: 8.4- 13) mSv WLM^-1. The annual effective dose (E) was estimated to be 0.38 ± 0.35 mSv yr^-1 for the offices. (C) 2000 Elsevier Science Ltd.

Original language	English
Pages (from-to)	379-385
Journal	Journal of Environmental Radioactivity
Volume	51
Issue number	3
DOIs	https://doi.org/10.1016/S0265-931X(00)00088-6
Publication status	Published - Dec 2000

Research Keywords

Dose
Dose conversion factor
Dosimeter
Rn

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title = "Survey of the Rn dose conversion factor for offices",

abstract = "The Rn dose conversion factor (DCF), which relates the effective dose to the exposure to the potential α energy concentration (PAEC) of inhaled Rn progeny, was surveyed for 23 occupied and air-conditioned offices in Hong Kong using the bronchial dosimeter for Rn progeny proposed by Yu and Guan in 1998. The mean values of PAEC deposited in the tracheobronchial region (PAEC(T-B)), total PAEC in air (PAEC(T)) and the concentration of Rn (RC) for the offices were 0.13 ± 0.12 mWL, 3.4 ± 3.3 mWL and 30 ± 12 Bq m-3, respectively. An average bronchial deposition fraction of Rn progeny was obtained as 0.037 (range: 0.033-0.051), which gave a DCF of 9.5 (range: 8.4- 13) mSv WLM-1. The annual effective dose (E) was estimated to be 0.38 ± 0.35 mSv yr-1 for the offices. (C) 2000 Elsevier Science Ltd.",

keywords = "Dose, Dose conversion factor, Dosimeter, Rn",

author = "Yu, {K. N.} and Lau, {B. M F} and Guan, {Z. J.} and Lo, {T. Y.} and Young, {E. C M}",

year = "2000",

month = dec,

doi = "10.1016/S0265-931X(00)00088-6",

language = "English",

volume = "51",

pages = "379--385",

journal = "Journal of Environmental Radioactivity",

issn = "0265-931X",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Survey of the Rn dose conversion factor for offices

AU - Yu, K. N.

AU - Lau, B. M F

AU - Guan, Z. J.

AU - Lo, T. Y.

AU - Young, E. C M

PY - 2000/12

Y1 - 2000/12

N2 - The Rn dose conversion factor (DCF), which relates the effective dose to the exposure to the potential α energy concentration (PAEC) of inhaled Rn progeny, was surveyed for 23 occupied and air-conditioned offices in Hong Kong using the bronchial dosimeter for Rn progeny proposed by Yu and Guan in 1998. The mean values of PAEC deposited in the tracheobronchial region (PAEC(T-B)), total PAEC in air (PAEC(T)) and the concentration of Rn (RC) for the offices were 0.13 ± 0.12 mWL, 3.4 ± 3.3 mWL and 30 ± 12 Bq m-3, respectively. An average bronchial deposition fraction of Rn progeny was obtained as 0.037 (range: 0.033-0.051), which gave a DCF of 9.5 (range: 8.4- 13) mSv WLM-1. The annual effective dose (E) was estimated to be 0.38 ± 0.35 mSv yr-1 for the offices. (C) 2000 Elsevier Science Ltd.

AB - The Rn dose conversion factor (DCF), which relates the effective dose to the exposure to the potential α energy concentration (PAEC) of inhaled Rn progeny, was surveyed for 23 occupied and air-conditioned offices in Hong Kong using the bronchial dosimeter for Rn progeny proposed by Yu and Guan in 1998. The mean values of PAEC deposited in the tracheobronchial region (PAEC(T-B)), total PAEC in air (PAEC(T)) and the concentration of Rn (RC) for the offices were 0.13 ± 0.12 mWL, 3.4 ± 3.3 mWL and 30 ± 12 Bq m-3, respectively. An average bronchial deposition fraction of Rn progeny was obtained as 0.037 (range: 0.033-0.051), which gave a DCF of 9.5 (range: 8.4- 13) mSv WLM-1. The annual effective dose (E) was estimated to be 0.38 ± 0.35 mSv yr-1 for the offices. (C) 2000 Elsevier Science Ltd.

KW - Dose

KW - Dose conversion factor

KW - Dosimeter

KW - Rn

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U2 - 10.1016/S0265-931X(00)00088-6

DO - 10.1016/S0265-931X(00)00088-6

M3 - RGC 21 - Publication in refereed journal

SN - 0265-931X

VL - 51

SP - 379

EP - 385

JO - Journal of Environmental Radioactivity

JF - Journal of Environmental Radioactivity

IS - 3

ER -

Survey of the Rn dose conversion factor for offices

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