Measurements of radon exhalation rate in NORM used as consumer products in Japan.
Twenty-five beauty products known to contain natural radionuclides were collected, and their222Rn mass exhalation rates were measured. The effective doses to workers due to222Rn exhaled from these products were estimated. The222Rn mass exhalation rates of these products were below 177 μBq kg-1s-1and were almost identical to those of natural rocks in Japan. The maximum effective dose of222Rn exhaled from these products was 71 μSv y-1.
Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Honcho, Hirosaki, Aomori 036-8564, Japan; National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan. Electronic address: iwaoka@hirosaki-u.ac.jp.
Kazuki
K
Iwaoka
Hirosaki University Graduate School of Health Sciences, 66-1 Honcho, Hirosaki, Aomori 036-8564, Japan.
Masahiro
M
Hosoda
National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan.
Kazuaki
K
Yajima
Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Honcho, Hirosaki, Aomori 036-8564, Japan.
Shinji
S
Tokonami
D000396:Air Pollutants, Radioactive / Q000032:analysis*; D001417:Background Radiation; D003257:Consumer Product Safety; D003358:Cosmetics / Q000032:analysis*; D045853:Exhalation; D006801:Humans; D007564:Japan; D016273:Occupational Exposure / Q000032:analysis; D000069079:Radiation Exposure / Q000032:analysis; D011834:Radiation Monitoring / Q000379:methods; D011886:Radon / Q000032:analysis*
D000396:Air Pollutants, Radioactive; D003358:Cosmetics; C000615148:Radon-222; D011886:Radon
Dose estimation; Exhalation rates; NORM; Radon