Posteｒ Presentations• Posters (no oral presentation) can be viewed on website from 9:00 on September 27 (Monday),
JST. In addition, only posters can be viewed for two weeks after the end of the symposium.
• Questions will be accepted until 17:00 September 28 (Tuesday).
• Answers may be posted until 12:00 on the September 29 (Wednesday).
ENVIRONMENTAL DYNAMICS
PE-01 Activity concentrations of radiocaesium, 90Sr and 129I in agricultural crops collected from
Fukushima and reference areas, and internal radiation dose
Hirofumi Tsukada,1 Tomoyuki Takahashi2 and Satoshi Fukutani2
1

Institute of Environmental Radioactivity, Fukushima University, Japan, 2 Institute forIntegrated Radiation Nuclear Science, Kyoto University, Japan

PE-02 Uptake of 137Cs from soil and irrigation water by rice plants cultivated with the pot
experiment
Nguyen Phuong Thoa,1 Yoshitaka Takagai2 and Hirofumi Tsukada3
1

Graduate School of Symbiotic Systems Science and Technology, Fukushima University

2

Faculty of Symbiotic Systems Science, Fukushima University

3

Institute of Environmental Radioactivity, Fukushima University, Japan

PE-03 Activity ratios of uranium isotopes in soil near Fukushima Dai-ichi Nuclear Power Station
using the multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS)
Rajamanickam Murugan,1 Sarata Kumar Sahoo,1 Atsuyuki Sorimachi2 and Tatsuo Aono1
1

National Institutes for Quantum and Radiological Sciences and Technology (QST), Japan

2

Fukushima Medical University, Japan

PE-04 Behaviour of 238Pu and 236U isotopes in soil samples affected due to FDNPS accident
Sharayu Kasar,1 Atsuyuki Sorimachi,2 Yasutaka Omori,2 Tatsuo Aono1 and Sarata Kumar Sahoo1
1

National Institutes for Quantum and Radiological Science and Technology (QST), Japan

2

Fukushima Medical University, Japan

PE-05 Vertical profile of Sr-90 in a Fukushima soil column
Sarata Kumar Sahoo,1 Norbert Kavasi,1,2 Hideki Arae,1 Atsuyuki Sorimachi,2 Yasutaka Omori2 andTatsuo Aono1
1

National Institutes for Quantum and Radiological Science and Technology (QST), Japan

2Jožef Stefan Institute, Slovenia, 3Fukushima Medical University, Japan

PE-06 Evaluation of radioactive cesium movement on ungrazed pasture by air radiation dose ratemeasurement
Mikinori Tsuiki
Iwate University, Japan1

PE-07 Impact of radiocesium contamination in flooded sediments after the 2019 typhoon on
decontaminated fields in Fukushima
Ikumi Asano,1 Nodoka Harada,1 Atsushi Nakao,1 Olivier Evrard2 and Junta Yanai1
1Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto,

Japan
2

Laboratoire des Sciences du Climat et de l’Environnement (LSCE/IPSL), Unité Mixte deRecherche 8212 (CEA/CNRS/UVSQ), Université Paris-Saclay, Gif-sur-Yvette, France

PE-08 Distributions of 210Pb, 137Cs, and physical properties in bottom sediments of West Nanao
Bay, Japan
Shinya Ochiai,1 Atsushi Fujita,1 Takeo Tokunari,1 Koichi Kawamura,1 Hideo Sakai2 and Seiya
Nagao1
1

Kanazawa University, Japan, 2 University of Toyama, Japan

PE-09 Contribution of CsMP on Cs runoff in the Takase River watershed during a rainfall eventin 2021
Takahiro Tatsuno,1 Hiromichi Waki,2 Minato Kakuma,2 Nihei Naoto1 and Nobuhito Ohte2
1

Fukushima University, Japan, 2 Kyoto University, Japan

PE-10 Distribution of absorbed dose rate in air in urban areas after the Fukushima Daiichi
Nuclear Power Plant accident
Mai Ichihara,1 Kazumasa Inoue,1 Hideo Shimizu,2 Hiroshi Tsuruoka,2 Mizuho Tsukada,1 Nimelan
Veerasamy1 and Masahiro Fukushi1
1

Tokyo Metropolitan University, Japan, 2 Tsukuba International University, Japan

PE-11 Influence of sampling flow rate on thoron exhalation rate measurements by circulation
methodMasahiro Hosoda, Hiromu Kobayashi, Yuki Tamakuma, Eka Djatnika Nugraha, Ryoju Negami,
Kranrod Chutima, Hirofumi Tazoe, Naofumi Akata and Shinji Tokonami
Hirosaki University, Japan

PE-12 Activity concentration of radiocaesium in self-consumed crops collected from evacuation
order cancellation preparation zone and internal radiation doses
Mihoko Kikuchi1 and Hirofumi Tsukada2
1

Graduate School of Symbiotic Systems Science and Technology, Fukushima University, Japan

2

Institute of Environmental Radioactivity, Fukushima University, Japan

PE-13 Distribution in soil radioactive concentrations in the eight Izu-Islands after the Fukushima
Daiichi Nuclear Power Plant accident
Hideo Shimizu,1,2 Kazumasa Inoue, 2 Hiroshi Tsuruoka1,2 and Masahiro Fukushi1,2
1

Tsukuba International University, Japan, 2 Tokyo Metropolitan University, Japan2

PE-14 Concentrations of 7Be and 210Pb for total deposition collected at Okinawa Island,Southwestern part of Japan
Kaori Nakamura,1 Shunya Nakasone,1 Shigekazu Hirao, 2 Yoshitaka Shiroma, 1 Naofumi Akata, 3Masahiro Tanaka,4 Akinobu Ishimine5 and Masahide Furukawa 1
1

University of the Ryukyus, Japan, 2Institute of Environment Radioactivity, Fukushima

University, Japan, 3Institute of Radiation Emergency Medicine, Hirosaki University, Japan,
4

National Institute for Fusion Science, National Institutes of National Science, Japan, 5Institutefor Environmental Sciences, Japan

PE-15 Analysis of Pb-210 deposition distribution Characteristics based on high resolution
atmospheric transport/deposition model calculation
Yu Cai,1 Yamazawa Hiromi,1 Moriizumi Jun1 and Hidenao Hasegawa2
1

Nagoya University, Japan, 2 Institute for Environmental Sciences, Japan

PE-16 Development of an Ocean Circulation Model for Estimating the Radionuclide Migration in
the Coastal Waters of Rokkasho Village, Aomori, Japan: the Diurnal Variation of Ocean
Velocities
Teiji In, Tomoharu Nakayama, Hisaki Kofuji, Tomoyuki Kuji
Japan Marine Science Foundation

PE-17 Dispersion Rate of Released Water from Rokkasho Nuclear Fuel Reprocessing Plant
Estimated from 3H and 129I in Seawater Samples Collected at 2006-2019
Hisaki Kofuji, Shinichi Gasa, Natsuko Akihama, Tomoyuki Kuji and Tomoharu Nakayama
Japan Marine Science Foundation

PE-18 Vertical Mixing near the Sea Surface Observed by Short-lived Natural Radionuclides(214Pb and 214Bi)
Hisaki Kofuji
Japan Marine Science Foundation

PE-19 Development of a robot for the measurement of radioactive contamination and fertility ofthe soil in farmland
Minoru Tanigaki,1 Yoshio Inoue,2 Sadao Momota,3 Takashi Saito,4 Tomoaki Nemoto,4 Tsukasa
Ono,4 Akira Wada,5 Masaharu Ohashi,5 Koichi Tsuno,6 Masahiro Kano,6 Takahiro Matsuura,7Tadaaki Yasuoka,7 Hiroyuki Hanai8 and Koichi Arakawa8
1

Kyoto University, Japan, 2 The University of Tokyo, Japan, 3 Kochi University of Technology,

Japan, 4 Hama Agricultural Regeneration Research Centre, Fukushima Agricultural Technology
Center, Japan, 5 Hitachi Zosen Corporation, Japan, 6 Kokusai Kogyo Co., Ltd., Japan, 7
Matsuura Denkosha Co., Ltd., Japan, 8 S2 Factory Inc., Japan

PE-20 Microbiological flora around Fukushima Daiichi Nuclear Power Plant area and its change
by contact with fuel debris
Yuma Dotsuta,1 Liu Jiang,1 Toru Kitagaki,1 Tomoaki Kato,1,2 Masahiko Nakase,2 Kenji Takeshita2
and Toshihiko Ohnuki2
1

Japan Atomic Energy Agency, Japan, 2 Tokyo Institute of Technology, Japan3

PE-21 Changes in air dose rates of Katsushika-Ku, Tokyo after the Fukushima Daiichi Nuclear
Power Plant accident
Mizuho Tsukada,1 Kazumasa Inoue,1 Mai Ichihara.1 Hiroshi Tsuruoka,2 Nimelan Veerasamy1 andMasahiro Fukushi1
1

Tokyo Metropolitan University, Japan, 2 Tsukuba International University, Japan

PE-22 Long-term decrease of Cs-137 concentration in Lake Onuma on Mt. Akagi: Model withGamma-distribution
Yuko Hatano,1 Eiichi Suetomi,1 Yukiko Okada,2 Kyuma Suzuki3 and Shun Watanabe3
1

University of Tsukuba, Japan, 2 Tokyo City University, Japan, 3 Gunma Prefectural Fisheries

Experiment Station, Japan

PE-23 Measurement of equilibrium factors in various environments
Hiroki Hashimoto,1 Yuki Tamakuma,2 Ryohei Yamada,3 Masahiro Hosoda1 and Shinji Tokonami1
1

Hirosaki University, Japan, 2 National Institutes for Quantum and Radiological Science andTechnology (QST), Japan, 3 Japan Atomic Energy Agency, Japan

PE-24 New portable α-ray spectrum survey meter with an ion-implanted silicon detector
development
Hiroshi Tsuruoka,1 Kazumasa Inoue,2 Masaru Takabatake,2 Hideo Shimizu,1 Nimelan Veerasamy2
and Masahiro Fukushi1
1

Tsukuba International University, Japan, 2 Tokyo Metropolitan University, Japan

PE-25 Distribution of gamma radiation dose rate and activity concentration in soil related withnatural radionuclides in Taiwan
Kyoko Saito,1 Yuya Ishita,2 Kazumasa Inoue3 and Masahiro Fukushi4
1

Nihon Institute of Medical Science, Japan, 2 Shizuoka Cancer Center, Japan, 3 Tokyo

Metropolitan University, Japan, 4 Tsukuba International University, Japan

PE-26 Dynamics of radioactive cesium in river environment in Ukedo River
Hirofumi Tazoe,1 Ryo Tachizaki,2 Yuto Tomisaka,2 Haruka Kuwata1,3 and Naofumi Akata1
1

Institute of Radiation Emergency Medicine, Hirosaki University, Japan, 2 School of Health

Sciences, Hirosaki University, Japan, 3 Graduate School of Health Sciences, Hirosaki
University, Japan

PE-27 Characterization of radioactive cesium in sediments at the Nogawa river, Japan
Satoshi Inose,1 Yusuke Nanri,2 Rintaro Saito1 and Yuya Koike2
1

Graduate School of Science and Technology, Meiji University, Japan, 2 School of Science andTechnology, Meiji University, Japan

PE-28 Activity-weighted particle size distributions of radon/thoron progeny in the outdoor
environment
Mizuki Kiso, Aoi Sanpei, Chutima Kranrod, Oumar Bobbo Moudibo, Eka Djatnika Nugraha,
Hiroki Hashimoto, Yuki Oda, Masahiro Hosoda and Shinji Tokonami
Hirosaki University, Japan4

PE-29 Fixed point observation and characterization of 137Cs in soil collected at Kawasaki, Japan
Rintaro Saito,1 Satoshi Inose,1 Masahiro Tanimoto2 and Yuya Koike2
1

Graduate School of Science and Technology, Meiji University, Japan, 2 School of Science andTechnology, Meiji University, Japan

PE-30 Development of in-situ 13CO2 exposure and 13C fixation rate determination systems forwhole apple tree and fruit-bearing shoots and a precise 13CO2 exposure chamber for young
potted trees
Yasuhiro Tako,1 Ryuji Arai,1 Yoshiyuki Yanagawase2 and Syu-ichi Nishikawa3
1

Institute for Environmental Sciences, 2 CLIMATEC, Inc., Japan, 3 Ohnishi Netsugaku Co.,

LTD, Japan.

PE-31 Experimental evaluation of distribution of 14C photo assimilated into carbohydrates indifferent growth stages of fruit-bearing apple shoots using a 13CO2 in-situ exposure system
Yuhi Satoh,1 Shogo Imada,1 Yasuhiro Tako1 and Yuki Moriya2
1

Institute for Environmental Sciences, Japan.2 NARO Institute of Fruit Tree and Tea Science,Japan

PE-32 Temporal variation of post-accident 129I in atmospheric particulate matter collected froman evacuated area of Fukushima Prefecture, Japan
Hidenao Hasegawa,1 Hideki Kakiuchi,1 Shinya Ochiai,1,2 Naofumi Akata,1,3 Shinji Ueda1 andShinji Tokonami3
1

Institute for Environmental Sciences, Japan, 2 Kanazawa University, Japan, 3 Hirosaki

University, Japan

PE-33 Tritium and Iodine-129 in water samples collected adjacent to a spent nuclear fuelreprocessing plant in Rokkasho, Japan
Shinji Ueda, Hidenao Hasegawa, Hideki Kakiuchi
Institute for Environmental Sciences, Japan

PE-34 Variation of exposure dose rates of discharging radio materials from the spent nuclear fuelreprocessing plant in Rokkasho under different yearly weather conditions
Koichi Abe,1 Kazuhiro Oshima,1,2 Jing-Hsien Chiang,3 Hiroji Suwa3 and Shun’ichi Hisamatsu1
1

Institute for Environmental Sciences, Japan, 2 Aomori University, Japan, 3 Japan NUS Co.

Ltd., Japan

PE-35 Temperature-dependent degradation of soil organic matter in farmlands and pastures
Masaru Nagai1 and Shizuo Suzuki1,2
1Institute for Environmental Sciences, Japan, 2 National Institute of Technology, Numazu

College, Japan (Present address)

PE-36 Investigation of short-term chemical change in stable ruthenium added to rainwater using
X-ray absorption fine structure analysis
Yusuke Unno,1 Akira Takeda1 and Yuichi Takaku1,2
1Institute for Environmental Sciences, Japan, 2 Tsukuba University, Japan (Present address)5PE-37 Soil-soil solution distribution coefficient of radioiodine in surface soils around the spent
nuclear fuel reprocessing plant in Rokkasho, Japan
Akira Takeda,1 Yusuke Unno,1 Hirofumi Tsukada,1,2 Yuichi Takaku1,3 and Shun’ichi Hisamatsu1
1

Institute for Environmental Sciences, Japan, 2 Fukushima University, Japan (Present address),

3

Tsukuba University, Japan (Present address)

PE-38 Effect of rice plant root activity on the chemical form of iodine in cultivated soil
suspensions
Mutsumi Yamagami and Masumi Yanai
Institute for Environmental Sciences, Japan

PE-39 Inhibitory effect of calcium on cesium absorption by plant roots
Masashi Kihana and Mutsumi Yamagami
Institute for Environmental Sciences, Japan

PE-40 Distribution of radiocesium in black pine tree forests in Rokkasho, Aomori, Japan during
2017–2019
Yoshihito Ohtsuka,1 Hidenao Hasegawa,1 Yoshiko Ayabe1,2 and Shun’ichi Hisamatsu1
1

Institute for Environmental Sciences, Japan, 2 Tohoku Research Center, Forestry and Forest

Product Research Institute, Japan (Present address)

PE-41 Direct assimilation of atmospheric carbon by young apple fruits
Shogo Imada,1 Yasuhiro Tako1 and Yuki Moriya2
1

Institute for Environmental Sciences, Japan, 2 NARO Institute of Fruit Tree and Tea Science,Japan

PE-42 Metabolism of 13C in cattle semitendinosus muscle after administration of 13C labeledorchard grass
Tsuyoshi Masuda, Takashi Tani, Ryuji Arai and Yasuhiro Tako
Institute for Environmental Sciences, Japan

PE-43 Transfer of cesium and iodine from the surface to the interior of apple fruit
Hitoshi Kawabata,1 Masumi Yanai,1 Yuichi Takaku1,2 and Shun'ichi Hisamatsu1
1

Institute for Environmental Sciences, Japan, 2 Tsukuba University, Japan (Present address)

PE-44 Distribution of iodine-127 in marine organisms from coastal waters around Aomori, Japan
Shoko Imai,1 Kensaku Matsushita,1 Yuichi Takaku,1,2 Yoshio Ishikawa1 and Yuhi Satoh11

Institute for Environmental Sciences, Japan, 2 Tsukuba University, Japan (Present address)

PE-45 Tritium concentrations in atmospheric water vapor and pine needles near the spent nuclear
fuel reprocessing plant at Rokkasho, Japan
Hideki. Kakiuchi,1 Hidenao. Hasegawa1 and Naofumi Akata2
1

Institute for Environmental Sciences, Japan, 2 Hirosaki University, Japan

6

BIOLOGICAL EFFECTS
PB-01 Analyses of cancer latency patterns that caused death in B6C3F1 mice continuously
exposed to low dose-rate gamma rays using the Armitage-Doll multistage model
Yoshiko Ayabe,1, 2 Isao Kawaguchi,3 Satoshi Tanaka,1 Ignacia Braga-Tanaka III,1 Jun-ichiro
Komura1 and Yoshiya Shimada1
1

Institute for Environmental Sciences, Japan, 2 Tohoku Research Center, Forestry and Forest

Product Research Institute, Japan, 3 Center for Radiation Protection Knowledge, National
Institutes for Quantum and Radiological Science and Technology (QST), National Institute ofRadiological Sciences, Japan

PB-02 The role of tumor microenvironment formation in radiation-induced tumor
Tsutomu Shimura and Akira Ushiyama
National Institute of Public Health, Japan

PB-03 On radiation-induced aging: accelerated- or premature-aging
Takahiro Wada,1 Tetsuhiro Kinugawa2 and Satoshi Tanaka31

Kansai University, Japan, 2 Osaka University, Japan, 3 Institute for Environmental Sciences,Japan

PB-04 Combined analysis of cancer incidence and lifespan in mice exposed to chronic low doserate radiation
Tetsuhiro Kinugawa,1 Takahiro Wada,2 Yuichiro Manabe,1 Fuminobu Sato1 and Satoshi Tanaka3
1

Osaka University, Japan, 2 Kansai University, Japan, 3 Institute for Environmental Sciences,Japan

PB-05 Identification of fusion genes in rat mammary carcinomas induced by radiation using RNA
sequencing
Hikaru Watanabe,1,2 Kazuhiro Daino,1 Atsuko Ishikawa,1 Tatsuhiko Imaoka,1,2 Mayumi
Nishimura,1, Masaru Takabatake,2 Kazumasa Inoue, 2 Masahiro Fukushi2 and Shizuko Kakinuma1
1

Department of Radiation Effects Research, National Institutes for Quantum and Radiological

Science and Technology (QST), Japan, 2 Department of Radiological Sciences, Graduate
School of Human Health Sciences, Tokyo Metropolitan Univ., Japan

PB-06 Molecular signatures of radiation-induced mouse precursor B-cell lymphoma
Hirotaka Tachibana,1,2 Kazuhiro Daino,2 Atsuko Ishikawa,2 Takamitsu Morioka,2 Yi Shang,2 Akira
Matsuura,3 Yoshiya Shimada2,4 and Shizuko Kakinuma2
1

Department of Biology, Graduate School of Science and Engineering, Chiba University, Japan,

2

Department of Radiation Effects Research, National Institutes for Quantum and Radiological

Science and Technology (QST), Japan, 3 Department of Biology, Graduate School of Science,
Chiba University, Japan, 4 Institute for Environmental Sciences, Japan7

PB-07 Radiation-induced DNA Double-strand Break Repair of Progenitor Cells in Rat Mammary
Gland
Kento Nagata,1 Mayumi Nishimura,1 Kazuhiro Daino,1 Daisuke Iizuka,1, Yukiko Nishimura,1Yuya Hattori,2 Ritsuko Watanabe,3 Akinari Yokoya,3 Keiji Suzuki,4 Shizuko Kakinuma1 andTatsuhiko Imaoka1
1

Department of Radiation Effects Research, National Institute of Radiological Sciences,

National Institutes for Quantum and Radiological Science and Technology (QST), 2
Department of Electrical Engineering and Information Science, National Institute ofTechnology Kure College, 3 Institute for Quantum Life Science, National Institutes for
Quantum and Radiological Science and Technology (QST), 4 Department of Radiation Medical
Sciences, Atomic Bomb Disease Institute, Nagasaki University

PB-08 Age-dependent thymic regeneration by activation of PI3K-AKT-mTOR signaling in
B6C3F1 mice after fractionated irradiation
Masaaki Sunaoshi,1 Benjamin J. Blyth,2 Yi Shang,1 Chizuru Tsuruoka,1 Takamitsu Morioka,1Mayumi Shinagawa,1 Mari Ogawa,1 Yoshiya Shimada,3 Akira Tachibana,4 Daisuke Iizuka1 andShizuko Kakinuma1
1

Department of Radiation Effects Research, National Institute of Radiological Sciences,

Quantum Life and Medical Science Directorate, National Institutes for Quantum andRadiological Science and Technology (QST), Japan, 2 Cancer Research Division, Peter
MacCallum Cancer Centre, Australia, 3 Institute for Environmental Science, Japan, 4 Graduate
School of Science and Engineering, Ibaraki University, Japan

PB-09 The role of DNA double-strand break repair through non-homologous end joining in thedose-rate effect in terms of clonogenic ability
Hisayo Tsuchiya,1 Mikio Shimada,1 Kaima Tsukada,1 Qingmei Meng,2 Junya Kobayashi3 andYoshihisa Matsumoto1
1

Tokyo Institute of Technology, Japan, 2 Kyoto University, Japan, 3 International University of

Health and Welfare, Japan

PB-10 Comparison analysis between in vivo irradiation and ex vivo irradiation of hematopoietic
stem cells at a low dose-rate suggests that the niche protects hematopoietic stem cells fromradiation damage and attenuates myeloid cell reduction
Tokuhisa Hirouchi
Institute for Environmental Sciences, Japan

PB-11 Radiation hypersensitivity of the oocyte causes premature menopause and obesity infemale mice chronically exposed to low dose-rate of γ-rays at 20 mGy per day
S. Nakamura, I. B. Tanaka III, J. Komura, S. Tanaka
Institute for Environmental Sciences, Japan

PB-12 Adaptive response of mice continuously irradiated with low dose rate radiation (Yonezawa
effect)Takashi Sugihara,1 Hayato Murano2 and Jun-ichiro Komura1
1

Institute for Environmental Sciences, 2 Tohoku Environmental Sciences Services Corporation

8

PB-13 The frequency of chromosome aberrations in lymphocytes of mice continuously irradiatedwith very low dose-rate ionizing radiation
Atsushi Kohda,1 Takuo Toyokawa,2 Tomoyuki Umino,2 Yoshiko Ayabe,3 Ignacia Braga Tanaka
III1 and Jun-ichiro Komura1
1

Institute for Environmental Sciences, Japan, 2 Tohoku Nuclear Co., Ltd., Japan, 3 Forestry andForest Product Research Institute, Japan

PB-14 Effects of Calorie Restriction on the Life Span of Mice Continuously Exposed to LowDose-rate Gamma-rays
Kazumi Yamauchi
Institute for Environmental Sciences, Japan

PB-15 Effects of Continuous Exposure to Low Dose-Rate Gamma-Rays on the Hematopoiesis ofMice Differs from Exposures at High Dose-Rates
Takanori Yanai,1 Syouko Kanaiwa-Kudo.2 Saitou Mikio,1 Shingo Nakamura,1 Satoshi Tanaka,1
Jun-Ichiro Komura1and Yoshiya Shimada1
1

Institute for Environmental Sciences, Japan, 2 Tohoku Nuclear Co., Ltd., Japan

PB-16 Genome-wide gene expression analysis of the liver from low dose-rate irradiated mice
Katsuyoshi Fujikawa,1 Takashi Sugihara,1 Satoshi Tanaka,1 Ignacia Tanaka,1 Shingo Nakamura,1Masako Nakamura-Murano,2 Hayato Murano2 and Jun-ichiro Komura1
1

Department of Radiobiology, Institute for Environmental Sciences (IES), Japan, 2 TESSCO,

Japan

9

TRITIUM
PT-01 Investigation of the concentration of tritiated water vapor in the air around the FDNPP
Shigekazu Hirao,1 Hideki Kakiuchi,2 Toshiya Tamari,3 Shinji Sugihara,4 Nagayoshi Shima,3Naofumi Akata5 and Masahiro Tanaka6, 7
1

Fukushima University, Japan, 2 Institute for Environmental Sciences, Japan, 3 Kyushu

Environmental Evaluation Association, Japan, 4 Kyushu University, Japan, 5 Hirosaki
University, Japan, 6 National Institutes of Natural Sciences, Japan, 7 SOKENDAI, Japan

PT-02 Performance evaluation of commercial scintillation cocktails for low-level tritium counting
Haruka Kuwata,¹ Naofumi Akata,¹ Hirofumi Tazoe,¹ Chutima Kranrod,¹ Kenso Fujiwara,² Motoki
Terashima,² Makoto Matsueda² and Shigekazu Hirao³¹ Institute of Radiation Emergency Medicine, Hirosaki University, ² Collaborative Laboratories
for Advanced Decommissioning Science, Japan Atomic Energy Agency, ³ Institute ofEnvironmental Radioactivity, Fukushima University

PT-03 Deuterium transfer analysis including the food chain from seawater into abalone
Toshihiro Shibata1,2 and Yoshio Ishikawa1
1

Institute for Environmental Sciences, Japan, 2 Tokyo Electric Power Company, Japan (present

address)

PT-04 Characteristics of temporal variation for tritium concentration and stable isotope ratio inenvironmental water collected from Okinawa Island, subtropical region of Japan
Shunya Nakasone,1 Akinobu Ishimine,2 Kaori Nakamura,1 Yuji Ishizu,1 Yoshitaka Shiroma,1Masahiro Tanaka,3 Naofumi Akata,4, Hideki Kakiuchi,2 Tetsuya Sanada5 and Masahide Furukawa1
1

University of the Ryukyus, Japan, 2 Institute for Environmental Sciences, Japan, 3 National

Institute for Fusion Science, National Institutes of Natural Sciences, Japan, 4 Hirosaki
University, Japan, 5 Hokkaido University of Science, Japan

PT-05 Environmental Impact of gaseous tritium discharge from fusion test facility on atmospherictritium
Masahiro Tanaka,1 Chie Iwata,1 Miki Nakada,1 Akemi Kato1 and Naofumi Akata2
1

National Institute for Fusion Science, Japan, 2 Hirosaki University, IREM, Japan

PT-06 Retention of organically bound deuterium in grass plants exposed to heavy water vapor atdifferent growth stages
Takashi Tani and Masaru Nagai
Institute for Environmental Sciences, Japan

PT-07 Development of a method to quantify non-exchangeable organically bound tritium in miceorgansNimelan Veerasamy, Tsuyoshi Masuda, Hideki Kakiuchi and Haruki Nagashima
Institute for Environmental Sciences, Japan

10