Site-specific dose conversion factors for radon progeny based on ambient aerosol characteristics in an outdoor environment and a tourist cave-Reference-Cited by-同舟云学术

Site-specific dose conversion factors for radon progeny based on ambient aerosol characteristics in an outdoor environment and a tourist cave

Published:2023-11 Issue:18 Volume:199 Page:2207-2211
ISSN:0144-8420
Container-title:Radiation Protection Dosimetry
language:en
Short-container-title:

Author:

Tamakuma Yuki¹²^ORCID,Kiso Mizuki²,Sampei Aoi²,Hashimoto Hiroki²,Kranrod Chutima³,Hosoda Masahiro²³^ORCID,Ooka Sohei⁴,Furukawa Masahide⁵,Tokonami Shinji³

Affiliation:

1. Nagasaki University Center for Radiation Research and Education, , 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan

2. Hirosaki University Graduate School of Health Sciences , 66-1 Honcho, Hirosaki, Aomori 036-8564, Japan

3. Hirosaki University Institute of Radiation Emergency Medicine, , 66-1 Honcho, Hirosaki, Aomori 036-8564, Japan

4. Nanto Co. Ltd. , 1336 Maekawa, Tamagusuku, Nanjo, Okinawa 901-0616, Japan

5. University of the Ryukyus, Nishihara Graduate School of Engineering and Science, , Okinawa 903-0213, Japan

Abstract

Abstract Site-specific Dose Conversion Factors (DCFs) for radon progeny were estimated based on the aerosol measurement results in an outdoor environment and a tourist cave. The Activity Median Diameter (AMD) and unattached fraction were measured and used to calculate the effective dose per unit intake of radon progeny. The AMDs in the outdoor environment was in the range of 0.24–0.71 μm with the unattached fraction of 0.17. In the tourist cave, two peaks were found in the aerosol size distribution at nucleation and accumulation modes and the unattached fraction was measured to be 0.69 with a range of 0.36–0.85. The DCFs at the outdoor environment did not differ from those from the publication of the International Commission on Radiological Protection; however, the DCF in the tourist cave was significantly higher due to the discrepancy in the unattached fraction and the aerosol size distribution. It was found that these two factors would significantly affect the DCF so that we should be aware of it.

Funder

ERAN Y-22-23

Institut Pluridisciplinaire Hubert Curien UMR 7178 CNRS/Strasbourg University

Publisher

Oxford University Press (OUP)

Subject

Public Health, Environmental and Occupational Health,Radiology, Nuclear Medicine and imaging,General Medicine,Radiation,Radiological and Ultrasound Technology

Link

https://academic.oup.com/rpd/article-pdf/199/18/2207/52771600/ncad175.pdf

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