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The exposure assessment of Rn-222 gas in the atmosphere(II)

Technical Report:

Abstract

Dose assessment to inhalation exposure of indoor {sup 222}Rn daughters in 12 residential areas in Korea has been performed by long term averaged radon concentrations measured with passive CR-39 radon cups. A simple mathematical lung dosimetry model based on the ICRP-30 was derived to estimate the indoor radon daughters exposure. The long term average indoor {sup 222}Rn concentrations and corresponding equilibrium equivalent radon concentrations (EEC{sub Rn}) in 12 areas showed a range of 33.82 {approx} 61.42 Bq.m{sup -3} (median : 48.90 Bq.m{sup -3}) and of 13.53 {approx} 24.57 Bq.m{sup -3} (median: 19.55 Bq.m{sup -3}), respectively. Reference dose conversion functions for evaluation of regional lung dose and effective dose equivalent for unit exposure to EEC{sub Rn} have been derived for an adult. The effective dose equivalent conversion factor was estimated to be 1.07 x 10{sup -5} mSv/Bq.h.m{sup -3} and this conversion factor agreed well with that recommended by the ICRP and UNSCEAR report. The annual average dose equivalents(H) to Tracheo-Bronchial and Pulmonary region of the lung, and total lung from exposure to measured EEC{sub Rn} were estimated to be 17.52 mSv.y{sup -l}, 3.35 mSv.y{sup -l} and 20.90 mSv.y{sup -1}, respectively, and the resulting effective dose equivalent(H{sub E}) was estimated to be  More>>
Authors:
Ha, Chung Wo; Chang, Si Young; Seo, Kyung Won; Yoon, Yeo Chang; Kim, Jang Lyul; Yoon, Suk Chul; Chung, Rae Ik; Kim, Jong Soo; Park, Young Woong [1] 
  1. Korea Atomic Energy Research Inst., Daeduk (Korea, Republic of)
Publication Date:
Jan 01, 1991
Product Type:
Technical Report
Report Number:
KAERI/RR-951/90
Reference Number:
SCA: 560101; PA: AIX-23:014505; SN: 92000646818
Resource Relation:
Other Information: PBD: Jan 1991
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; RADON 222; RADIATION DOSES; ATMOSPHERES; DOSE EQUIVALENTS; EMANOMETERS; EXHALATION; LUNGS; RADIATION DETECTORS; 560101; DOSIMETRY AND MONITORING
OSTI ID:
10115260
Research Organizations:
Korea Atomic Energy Research Inst., Daeduk (Korea, Republic of)
Country of Origin:
Korea, Republic of
Language:
Korean
Other Identifying Numbers:
Other: ON: DE92614985; TRN: KR9100108014505
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
88 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Ha, Chung Wo, Chang, Si Young, Seo, Kyung Won, Yoon, Yeo Chang, Kim, Jang Lyul, Yoon, Suk Chul, Chung, Rae Ik, Kim, Jong Soo, and Park, Young Woong. The exposure assessment of Rn-222 gas in the atmosphere(II). Korea, Republic of: N. p., 1991. Web.
Ha, Chung Wo, Chang, Si Young, Seo, Kyung Won, Yoon, Yeo Chang, Kim, Jang Lyul, Yoon, Suk Chul, Chung, Rae Ik, Kim, Jong Soo, & Park, Young Woong. The exposure assessment of Rn-222 gas in the atmosphere(II). Korea, Republic of.
Ha, Chung Wo, Chang, Si Young, Seo, Kyung Won, Yoon, Yeo Chang, Kim, Jang Lyul, Yoon, Suk Chul, Chung, Rae Ik, Kim, Jong Soo, and Park, Young Woong. 1991. "The exposure assessment of Rn-222 gas in the atmosphere(II)." Korea, Republic of.
@misc{etde_10115260,
title = {The exposure assessment of Rn-222 gas in the atmosphere(II)}
author = {Ha, Chung Wo, Chang, Si Young, Seo, Kyung Won, Yoon, Yeo Chang, Kim, Jang Lyul, Yoon, Suk Chul, Chung, Rae Ik, Kim, Jong Soo, and Park, Young Woong}
abstractNote = {Dose assessment to inhalation exposure of indoor {sup 222}Rn daughters in 12 residential areas in Korea has been performed by long term averaged radon concentrations measured with passive CR-39 radon cups. A simple mathematical lung dosimetry model based on the ICRP-30 was derived to estimate the indoor radon daughters exposure. The long term average indoor {sup 222}Rn concentrations and corresponding equilibrium equivalent radon concentrations (EEC{sub Rn}) in 12 areas showed a range of 33.82 {approx} 61.42 Bq.m{sup -3} (median : 48.90 Bq.m{sup -3}) and of 13.53 {approx} 24.57 Bq.m{sup -3} (median: 19.55 Bq.m{sup -3}), respectively. Reference dose conversion functions for evaluation of regional lung dose and effective dose equivalent for unit exposure to EEC{sub Rn} have been derived for an adult. The effective dose equivalent conversion factor was estimated to be 1.07 x 10{sup -5} mSv/Bq.h.m{sup -3} and this conversion factor agreed well with that recommended by the ICRP and UNSCEAR report. The annual average dose equivalents(H) to Tracheo-Bronchial and Pulmonary region of the lung, and total lung from exposure to measured EEC{sub Rn} were estimated to be 17.52 mSv.y{sup -l}, 3.35 mSv.y{sup -l} and 20.90 mSv.y{sup -1}, respectively, and the resulting effective dose equivalent(H{sub E}) was estimated to be 1.25 mSv.y{sup -l}, which is almost 50% of the natural radiation exposure of 2.40 mSv.y{sup -l} reported by the UNSCEAR. (Author).}
place = {Korea, Republic of}
year = {1991}
month = {Jan}
}