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Iijima, Kazuki; Hayashi, Seiji*; Tamaoki, Masanori*
Global Environmental Research (Internet), 24(2), p.85 - 93, 2021/06
Environmental radioactive contamination by the Fukushima Daiichi Nuclear Power Plant accident has clearly been declining during the passage of almost 10 years from the accident. However, the prolongation of radioactive contamination in natural ecosystems probably derived from forested area without decontamination is pointed out by many studies, so more detailed examination will be needed for environmental dynamics of bioavailable radiocesium and its transfer to ecosystems. Also for influence of radiation to organisms, effects of evacuation on wild organisms are more pronounced than direct effect from radiation, especially in Fukushima evacuation area.
Cs concentrations in foliose lichens within Tsukuba-city as a reflection of radioactive fallout from the Fukushima Dai-ichi Nuclear Power Plant accidentOmura, Yoshihito*; Matsukura, Kimiyo*; Abe, Junichi*; Hosaka, Kentaro*; Tamaoki, Masanori*; Dohi, Terumi; Kakishima, Makoto*; Seaward, M. R. D.*
Journal of Environmental Radioactivity, 141, p.38 - 43, 2015/03
Times Cited Count：12 Percentile：32.13(Environmental Sciences)Cs concentrations in ten species of foliose lichens collected within Tsukuba-city in August 2013 ranged from 1.7 to 35 kBq/kg. The relationships between Cs in two dominant species, Dirinaria applanata and Physcia orientalis, and the air dose rate (
Sv/h) at the sampling sites were investigated. Cs in P. orientalis measured about 1 year after the Fukushima nuclear accident was correlated (r
=0.80) more closely with the air dose rate than those measured after about 2 years (r=0.65), possibly demonstrating its continued value as a biomonitor to reflect ambient fall-out levels. In contrast, those of Dirinaria applanata were not correlated with the air dose rate in either year.
Sato, Toshinori; Mikake, Shinichiro; Sakamaki, Masanori; Aoki, Kazuhiro; Yamazaki, Shinichi; Shigeta, Naotaka; Takeda, Seietsu
9th International Conference on Environmental Remediation and Radioactive Waste Management (ICEM '03), p.1333 - 1339, 2003/00
This paper shows current status of Mizunami Underground Research Laboratory, especially design and construction plan of underground facility.
Ito, Takushi; Kato, Shoichi; Aoki, Masanori; Yoshida, Hidekazu; Kobayashi, Toshimi; Wada, Yusaku
Journal of Nuclear Science and Technology, 29(4), p.367 - 377, 1992/04
None
Takeda, Toshikazu*; Ito, Noboru*; Kugo, Teruhiko*; Takamoto, Masanori*; Aoki, Shigeaki*; Kawagoe, Yoshihiro*; Sengoku, Katsuhisa*; Tanaka, Motonari*; Yoshimura, Akira*; Tamitani, Masashi*; et al.
PNC TJ2605 89-001, 251 Pages, 1989/03
no abstracts in English
Hase, Yoshihiro; Yoshihara, Ryohei; Nozawa, Shigeki; Tamaoki, Masanori*; Narumi, Issei
no journal, ,
no abstracts in English
Niizato, Tadafumi; Sasaki, Yoshito; Watanabe, Takayoshi; Mitachi, Katsuaki*; Ito, Satomi; Kuramoto, Takayuki*; Arai, Hirotsugu*; Nomura, Naoki*; Hayashi, Seiji*; Tamaoki, Masanori*
no journal, ,
Cs released from the TEPCO's Fukushima Dai-ichi Nuclear Power Plant accident has a long half-life of about 30 years, it is necessary to monitor the distribution and its radioecological impact over the long term. Mountainous forests, which accounts for about 70% of Fukushima prefecture, tend to be a sink of radiocesium contamination rather than a source for the contamination of other ecosystems. An understanding of the environmental dynamics of radiocesium in the forest floor of various conditions is important issue, while progressing to the resident return. In this paper, we report on the results of the field investigation into the Cs distribution and the Cs outflow in the mountainous forest of Fukushima, where the wildfire broke out in the spring of 2017.
Tamaoki, Masanori*; Sakamoto, Ayako; Endo, Masaki*; Toki, Seiichi*
no journal, ,
no abstracts in English
Ojima, Hisao; Ito, Masanori; Takahashi, Saburo; Asakura, Koichi; Aoki, Yoshikazu
no journal, ,
no abstracts in English
Ishizaki, Azusa; Mori, Airi; Kawase, Keiichi; Kato, Mitsugu; Watanabe, Masanori; Aoki, Isao; Munakata, Masahiro
no journal, ,
