Wakiyama Yoshifumi

Profile Information

Affiliation: 講師, 環境放射能研究所, 福島大学

Researcher number: 40594792
J-GLOBAL ID: 201501047163854076
researchmap Member ID: B000244544

Research Interests

Research Areas

Research History

Apr, 2021 - Present

Associate Professor, Institute of Environmental Radioactivity, Fukushima University
Apr, 2015 - Mar, 2021

Senior Assistant Professor, Institute of Environmental Radioactivity, Fukushima University
Oct, 2013 - Mar, 2015

Researcher, Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba
Apr, 2013 - Sep, 2013

Researcher, Faculty of Life and Environmental Sciences, University of Tsukuba
Sep, 2010 - Mar, 2013

Researcher, Terrestrial Environmental Research Center, University of Tsukuba
Aug, 2010 - Aug, 2010

Researcher, Graduate School of Life and Environmental Sciences, University of Tsukuba

Education

Apr, 2006 - Jul, 2010

Graduate School of Life and Environmental Sciences, University of Tsukuba
Apr, 2004 - Mar, 2006

Graduate School of Bioresource & Bioenvironment Sciences, Kyushu University
Apr, 2000 - Mar, 2004

Faculty of Agriculture, Kyushu University
Apr, 1997 - Mar, 2000

佐賀県立唐津東高等学校

Papers

Alteration of the Cesium-137 soil profile by wild boar rooting after the Fukushima Daiichi Nuclear Power Plant accident

Rie Saito, Yoshifumi Wakiyama, Helen Bontrager, Kenji Nanba, James C. Beasley

Environmental Challenges, 12 100728-100728, Aug, 2023 Peer-reviewed
Hydrological setting control 137Cs and 90Sr concentration at headwater catchments in the Chornobyl Exclusion Zone

Yasunori Igarashi, Yuichi Onda, Koki Matsushita, Hikaru Sato, Yoshifumi Wakiyama, Hlib Lisovyi, Gennady Laptev, Dmitry Samoilov, Serhii Kirieiev, Alexei Konoplev

May 15, 2023
Impact of Bottom-Sediment Removal on 137Cs Contamination in an Urban Pond

Honoka Kurosawa, Yoshifumi Wakiyama, Toshihiro Wada, Kenji Nanba

Land, 12(2) 519-519, Feb 20, 2023 Peer-reviewed
Fate and Transport of Fukushima-Derived Radiocesium in the Environment: Key Findings and Challenges for the Future

Alexei Konoplev, Yoshifumi Wakiyama, Yasunori Igarashi, Kenji Nanba

International Journal of Plant, Animal and Environmental Sciences, 13(04), 2023
Persistent impact of Fukushima decontamination on soil erosion and suspended sediment

Bin Feng, Yuichi Onda, Yoshifumi Wakiyama, Keisuke Taniguchi, Asahi Hashimoto, Yupan Zhang

Nature Sustainability, Jul 14, 2022 Peer-reviewed
Reconstruction of time changes in radiocesium concentrations in the river of the Fukushima Dai-ichi NPP contaminated area based on its depth distribution in dam reservoir’s bottom sediments

Konoplev A, Wakiyama Y, Wada T, Ivanov M, Kommisarov M, Nanba K

Environmental Research, 206 112307, 2022 Peer-reviewed
A comparative study of riverine 137Cs dynamics during high-flow events at three contaminated river catchments in Fukushima

Niida, T, Wakiyama, Y, Takata, H, Taniguchi, K, Kurosawa, H, Fujita, K, Konoplev, A

Science of the Total Environment, 821 153408-153408, 2022 Peer-reviewedCorresponding author
Factors controlling the dissolved 137 Cs seasonal fluctuations in the Abukuma River under the influence of the Fukushima Nuclear Power Plant accident

Igarashi, Y, Nanba, K, Wada, T, Wakiyama, Y, Onda, Y, Moritaka, S, Konoplev, A

Journal of Geophysical Research: Biogeoscience, 122, 2022 Peer-reviewed
Impacts of freeze-thaw processes and subsequent runoff on 137Cs washoff from bare land in Fukushima

Yasunori Igarashi, Yuichi Onda, Yoshifumi Wakiyama, Kazuya Yoshimura, Hiroaki Kato, Shohei Kozuka, Ryo Manome

Science of The Total Environment, 769 144706-144706, May, 2021 Peer-reviewed
Importance of desorption process from Abukuma River’s suspended particles in increasing dissolved 137Cs in coastal water during river-flood caused by typhoons

Takata, H, Wakiyama, Y, Niida, T, Igarashi, Y, Konoplev, A, Inatomi, N

Chemosphere, 281 137051-130751, May, 2021 Peer-reviewed
Radiocesium distribution and mid-term dynamics in the ponds of the Fukushima Dai-ichi nuclear power plant exclusion zone in 2015–2019

Alexei Konoplev, Yoshifumi Wakiyama, Toshihiro Wada, Cameron Udy, Volodymyr Kanivets, Maxim M.Ivanov, Mikhail Komissarov, Tsugiko Takase, Azusa Goto, Kenji Nanba

Chemosphere, 265 129058-(in press), 2021 Peer-reviewed
Radionuclides from the Fukushima Daiichi Nuclear Power Plant in terrestrial systems

Yuichi Onda, Keisuke Taniguchi, Kazuya Yoshimura, Hiroaki Kato, Junko Takahashi, Yoshifumi Wakiyama, Frederic Coppin, Hugh Smith

Nature Review Earth & Environment, Oct, 2020 Peer-reviewed
Suspended Particle–Water Interactions Increase Dissolved 137Cs Activities in the Nearshore Seawater during Typhoon Hagibis

Hyoe Takata, Tatsuo Aono, Michio Aoyama, Mutsuo Inoue, Hideki Kaeriyama, Shotaro Suzuki, Tadahiko Tsuruta, Toshihiro Wada, Yoshifumi Wakiyama

Environmental Science & Technology, Aug 19, 2020 Peer-reviewed
Simulating dissolved 90Sr concentrations within a small catchment in the Chernobyl Exclusion Zone using a parametric hydrochemical model

Yasunori Igarashi, Yuichi Onda, Jim Smith, Sergey Obrizan, Serhii Kirieiev, Volodymyr Demianovych, Gennady Laptev, Dmitri Bugai, Hlib Lisovyi, Alexei Konoplev …

Scientific Reports, 2020 Peer-reviewed
Land use types control solid wash-off rate and entrainment coefficient of Fukushima-derived 137Cs, and their time dependence

Wakiyama, Y, Onda, Y, Yoshimura, K, Igarashi, Y, Kato, H

Journal of Environmental Radioactivity, 210 105990-105990, Dec, 2019 Peer-reviewedLead authorLast author
Strong contrast of cesium radioactivity between marine and freshwater fish in Fukushima

Wada, Toshihiro, Konoplev, Alexei, Wakiyama, Yoshifumi, Watanabe, Kenji, Furuta, Yuma, Morishita, Daigo, Kawata, Gyo, Nanba, Kenji

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 204 132-142, Aug, 2019 Peer-reviewed
Impact of wildfire on 137Cs and 90Sr wash-off in heavily contaminated forests in the Chernobyl Exclusion Zone

Igarashi, Y, Onda, Y, Wakiyama, Y, Konoplev, A, Zheleznyak, M, Lisovyi, H, Laptev, G, Damiyanovich, V, Samoilov, D, Nanba, K …

Environmental Pollution, in press, 2019 Peer-reviewed
Natural attenuation of Fukushima-derived radiocesium in soils due to its vertical and lateral migration

A. Konoplev, V. Golosov, Y. Wakiyama, T. Takase, V. Yoschenko, T. Yoshihara, O. Parenyuk, A. Cresswell, M. Ivanov, M. Carradine …

Journal of Environmental Radioactivity, 186 23-33, Jun 1, 2018 Peer-reviewed
Radiocesium in Ponds in the Near Zone of Fukushima Dai-ichi NPP

Konoplev A, Wakiyama Y, Wada T, Golosov VN, Nanba K, Takase T

Water Resources, 45 589-597, 2018 Peer-reviewed
Effect of topsoil removal and selective countermeasures on radiocesium accumulation in rice plants in Fukushima paddy field

Baolu Yang, Yuichi Onda, Yoshihiro Ohmori, Hitoshi Sekimoto, Toru Fujiwara, Yoshifumi Wakiyama, Kazuya Yoshimura, Junko Takahashi, Xinchao Sun

SCIENCE OF THE TOTAL ENVIRONMENT, 603 49-56, Dec, 2017 Peer-reviewed

Misc.

Chapter 4: Behavior of Fukushima-Derived Radiocesium in the Soil–Water Environment: Review

Konoplev, A, Wakiyama, Y, Wada, T, Igarashi, Y, Kanivets, V, Nanba, K

Behavior of Radionuclides in the Environment III Fukushima, Nanba et al. Ed., 33-68, Feb, 2022
Chapter 8: Erosion and Redeposition of Sediments and Sediment-Associate Radiocesium on River Floodplains (the Niida River Basin and the Abukuma River as an Example)

Golosov, V, Konoplev,A, Wakiyama, Y, Ivanov, M, Komissarov, M

Behavior of Radionuclides in the Environment III Fukushima, Nanba et al. Ed., 97-133, Feb, 2022
Chapter 9: Temporal variations in particulate and dissolved 137Cs activity concentrations in the Abukuma River during two high-flow events in 2018.

Wakiyama, Y, Konoplev, A, Thoa, N, Niida, T, Tsukada, H, Takase, T, Nanba, K, Golosov, V, Zheleznyak, M

Behaviour of Radionuclides in the Environment III- Fukushima Nanba et al. Eds, 153-175, Feb, 2020 Lead author
Cesium-137 activity concentration in suspended sediments in turbid water in paddy fields in Fukushima

Wakiyama Yoshifumi, Yuichi Onda, Kazuya Yoshimura

CRiED, University of Tsukuba, 00013, Jan, 2020 Lead author
Time changes of dose equivalent rate above the soil surface as indication of natural attenuation processes

Konoplev, A, Yoshihara, T, Wakiyama, Y

Proceedings of IAHS, 381 121-126, Aug, 2019
Temporal trends of ¹³⁷Cs activity concentration in pond waters in the vicinity of Fukushima Dai-ichi nuclear power plant

Yoshifumi Wakiyama, Alexei Konoplev, Toshihiro Wada, Tsugiko Takase, Yasunori Igarashi, Kenji Nanba, Ian Byrnes

Proceedings of the International Association of Hydrological Sciences, 381 101-106, Aug 1, 2019 Lead author
Consequences of the river valley bottom transformation after extreme flood (on the example of the Niida River, Japan)

D. Botavin, V. Golosov, A. Konoplev, Y. Wakiyama

IOP Conference Series: Earth and Environmental Science, 107(1) 012002, Jan 31, 2018
Migration behavior of particulate ¹²⁹I in the Niida river system

Tetsuya Matsunaka, Kimikazu Sasa, Keisuke Sueki, Yuichi Onda, Keisuke Taniguchi, Yoshifumi Wakiyama, Tsutomu Takahashi, Masumi Matsumura, Hiroyuki Matsuzaki

Radiological Issues for Fukushima's Revitalized Future, 57-64, Jan 1, 2016
様々な土地利用からの土壌侵食による放射性セシウムの移行

脇山義史, 恩田裕一, 吉村和也, 加藤弘亮

第15回環境放射能研究会プロシーディングス, 135-143, 2014 Lead author
川上演習林における水文観測 ―2011-2012年の観測結果―

脇山義史, 山中勤

農林技術研究, 1 47-59, 2013 Lead author
Fingerprinting the sediment sources of fine sediment to Bili Bili reservoir using fallout radionuclides

Onda, Y, Wakiyama, Y, Furukawa, T, Matsunaga, S, Watanabe, T

Proceedings of International Workshop on Multimodal Sediment Disasters Triggered by Heavy Rainfall and Earthquake and the Countermeasures, Yogyakarta, INDONESIA, March 8-9, 2009., 2009
管理放棄人工林を主体とする御手洗水試験流域における土壌の性質と水分保持能

久米朋宣, 東直子, 脇山義史, 金丸裕一郎, 井手淳一郎, 大槻恭一

九州大学農学部演習林報告, 89 13-28, 2008
Relationship between clay mineral and slope gradient in Ochozu Experimental Watershed, Kyushu University Forest, Fukuoka, Japan

WAKIYAMA Y.

Bulletin of the Kyusyu University Forests, 89(89) 127-136, 2008 Lead author
森林土壌におけるCs-137，unsupported Pb-210と化学的性質の関係

脇山義史, 井手淳一郎, 大槻恭一, 智和正明, 江頭和彦

第７回環境放射能研究会プロシーディングス, 169-173, 2006 Lead author

Teaching Experience

2019 - Present

環境放射能学特別演習 (福島大学大学院共生システム理工学研究科)
2019 - Present

陸域放射能動態学 (福島大学大学院共生システム理工学研究科)
2019 - Present

環境放射能学演習 (福島大学大学院共生システム理工学研究科)
2019 - Present

環境放射能学I (福島大学大学院共生システム理工学研究科)

Research Projects

Elucidation of the process of 137Cs discharge through rivers and diffusion into coastal waters

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2022 - Mar, 2025
福島沿岸の放射性セシウム動態解明に向けた汚染懸濁粒子の作用機序（分担）

科学研究費助成事業基盤研究(B), 基盤研究(B), 日本学術振興会, Apr, 2021 - Mar, 2025

高田兵衛
チェルノブイリ災害後の環境管理支援技術の確立（分担）

SATREPS 地球規模課題対応国際科学技術協力プログラム, 科学技術振興機構, Apr, 2017 - Mar, 2022

難波謙二
Long-term dynamics of radiocesium in aquatic ecosystems of Fukushima and Chernobyl contaminated areas

科学研究費助成事業平成30年度(2018年度) 基盤研究（Ｂ）, 日本学術振興会, Apr, 2018 - Mar, 2021

コノプリョフアレクセイ
福島原発事故後の農地除染が河川流域内の土砂および137Cs動態に及ぼす影響

ニッセイ財団若手研究・奨励研究助, 公共財団法人日本生命財団, Oct, 2017 - Sep, 2018

脇山義史
福島第一原発周辺のため池における水のCs-137濃度時間変動の要因

2016年度クリタ水・環境科学振興財団研究助成, クリタ水・環境科学振興財団, Oct, 2016 - Sep, 2017

脇山義史
Understanding the migration process of radionuclides associated with water and sediment movement

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), Japan Society for the Promotion of Science, Jun, 2012 - Mar, 2017

Onda Yuichi, SEKIGUCHI Tomohiro, TAKAHASHI Takayuki, Olivier Evrard, Valentin GOLOSOV, Laurent Garcia-Sanchez
水・土砂移動に伴う放射性物質の移行過程（分担）

科学研究費補助金新学術領域研究, 日本学術振興機構, 2016 - 2017

恩田裕一
貯水池水中における福島第一原発事故由来のセシウム137濃度時間変化とその要因

2015年度クリタ水・環境科学振興財団研究助, クリタ水・環境科学振興財団, Oct, 2015 - Sep, 2016

脇山義史
中部山岳地域における冬季・融雪期の水流出の地点間比較

平成24年度笹川科学研究助成金, 公益財団法人日本科学協会, Apr, 2012 - Feb, 2013

脇山義史

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