start-ver=1.4 cd-journal=joma no-vol=56 cd-vols= no-issue= article-no= start-page=1 end-page=4 dt-received= dt-revised= dt-accepted= dt-pub-year=1985 dt-pub=19850330 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Radioactivity and chromosome aberrations of residents of Misasa Spa kn-title=三朝温泉地の自然放射能と住民の末梢血染色体異常について en-subtitle= kn-subtitle= en-abstract= kn-abstract=Misasa Spa is one of the most highly radioactive hot springs in Japan, the waters of which contain mainly (222)Rn (437±132 Bq/liter). Radon contents of indoor air of private houses and health resort hotels (built of wood) at Misasa Spa range from 18.5 to 55.5 mBq/liter and 22.2 to 129.5 mBq/liter, respectively. Radon contents in the air of facilities using spring waters at Misasa Branch Hospital of Okayama University were measured to be ; bathroom 807±78 mBq/liter; Hubbardtank bathroom 5306±2568 mBq/liter ; the drinking hall 1491±178 mBq/liter. The environmental and dose rate inside private houses has been measured to be 14.0±1.8 μR/h. Chromosome aberrations (dicentrics) in the peripheral blood lymphocytes of residents of Misasa Spa were investigated in 14 persons; the mean value of aberration frequencies were 0.21%. en-copyright= kn-copyright= en-aut-name=MorinagaHiroshi en-aut-sei=Morinaga en-aut-mei=Hiroshi kn-aut-name=森永寛 kn-aut-sei=森永 kn-aut-mei=寛 aut-affil-num=1 ORCID= en-aut-name=MifuneMasaaki en-aut-sei=Mifune en-aut-mei=Masaaki kn-aut-name=御船政明 kn-aut-sei=御船 kn-aut-mei=政明 aut-affil-num=2 ORCID= en-aut-name=FurunoKatsuaki en-aut-sei=Furuno en-aut-mei=Katsuaki kn-aut-name=古野勝志 kn-aut-sei=古野 kn-aut-mei=勝志 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部附属病院三朝分院 affil-num=2 en-affil= kn-affil=岡山大学医学部附属病院三朝分院 affil-num=3 en-affil= kn-affil=岡山大学医学部附属病院三朝分院 END