TY - GEN
T1 - Radon and thoron exhalation rate map in Japan
AU - Hosoda, Masahiro
AU - Shimo, Michikuni
AU - Sugino, Masato
AU - Furukawa, Masahide
AU - Fukushi, Masahiro
AU - Minami, Kazuyuki
AU - Ejiri, Kazutaka
PY - 2008
Y1 - 2008
N2 - Measurements of radon and thoron exhalation rates have been done using the radon and thoron exhalation rate measuring instrument adopting the accumulation method. We obtained the 111 data in the 40 sites of the 14 prefectures in Japan. The arithmetic average value of the radon and thoron exhalation rates by all 111 data were obtained to be 8.6 mBq·m-2 ·s- and 0.80 Bq·m-2·s-1, respectively, and we have reported the radon and thoron exhalation rates in relation to the geological features. The relation between the exhalation rate and geology was shown that the exhalation rate had an increasing tendency in order of basic rock, neutral rock and acidic rock. We made the nationwide exhalation-rate map using the survey data of exhalation-rate of radon and thoron and the geological distribution map.
AB - Measurements of radon and thoron exhalation rates have been done using the radon and thoron exhalation rate measuring instrument adopting the accumulation method. We obtained the 111 data in the 40 sites of the 14 prefectures in Japan. The arithmetic average value of the radon and thoron exhalation rates by all 111 data were obtained to be 8.6 mBq·m-2 ·s- and 0.80 Bq·m-2·s-1, respectively, and we have reported the radon and thoron exhalation rates in relation to the geological features. The relation between the exhalation rate and geology was shown that the exhalation rate had an increasing tendency in order of basic rock, neutral rock and acidic rock. We made the nationwide exhalation-rate map using the survey data of exhalation-rate of radon and thoron and the geological distribution map.
UR - https://www.scopus.com/pages/publications/52249101565
UR - https://www.scopus.com/pages/publications/52249101565#tab=citedBy
U2 - 10.1063/1.2991202
DO - 10.1063/1.2991202
M3 - Conference contribution
AN - SCOPUS:52249101565
SN - 9780735405592
T3 - AIP Conference Proceedings
SP - 177
EP - 180
BT - The Natural Radiation Environment - 8th International Symposium (NRE VIII)
T2 - 8th International Symposium on the Natural Radiation Environment, NRE VIII
Y2 - 7 October 2007 through 12 October 2007
ER -