@article{oai:nagoya.repo.nii.ac.jp:00026306,
 author = {千葉, 茂樹 and 諏訪, 兼位 and 鈴木, 和博 and Chiba, Shigeki and Suwa, Kanenori and Suzuki, Kazuhiro},
 journal = {名古屋大学年代測定研究},
 month = {Mar},
 note = {In August from July 2017, one of the authors (SC) investigated the air radiation dose (1 m above the ground) at several areas in Fukushima Prefecture. At the central part in Motomiya City, the range of the radiation was 0.08−1.61 μSv/h, and the average value was 0.22 μSv/h. In addition, the radiation attenuation rates, which were ratio of measured values, were as follows: 2014−2015, 85%; 2015− 2016, 86%; and 2016−2017, 88%. These values are slightly lower than those theoretically expected, suggesting that some of the radioactive materials were washed away by rain. At the Mt. Yomogida-dake area, the range of the radiation was 0.08−1.22 μSv/h, and the average value was 0.32 μSv/h. In addition, the radiation attenuation rates were as follows: 2013−2014, 89%; 2014−2015, 89%; 2015−2016, 92%; and 2016−2017, 89%. The relatively constant radiation attenuation rates probably indicate gradual infiltration of the radioactive material into soil., 2017年8月に本宮市，2017年7月に蓬田岳の空間放射線量率（高さ1m）を測定した．本宮市中心部（測定2096地点）では，0.08～1.61μSv/h，平均値は0.22μSv/hであった．蓬田岳（測定125地点）では，0.08～1.22μSv/h，平均値は0.32μSv/hであった．本宮市中心部の減衰率は，各年において，実測値（当年値／前年値）≒理論値（当年値／前年値）×0.90と読み取ることができる．上記の式は，各年の理論的な減衰率に，雨等による放射性物質の移動で生じる減衰が加味されていることを示唆している．蓬田岳の各年の減衰率（実測値／理論値）は，0.89～0.92とほぼ一定である．この0.1程度の減衰要因は，放射性物質の土壌への浸透（埋没）の可能性が高い．},
 pages = {65--70},
 title = {福島第一原発事故に伴う放射性物質による汚染 : 2017年の福島県の状況(本宮市・蓬田岳)},
 volume = {2},
 year = {2018}
}