Research field (4)：
Analytical chemistry
, Space and planetary science
, Environmental policy and society
, Environmental impact assessment
Research keywords (7)：
環境影響評価
, 地球化学
, 分離・精製・検出法
, Environmental Influence Accessment
, Geochemistry
, Refining and Identification
, Separation
Research theme for competitive and other funds (28)：
2023 - 2026 鹿児島湾海底熱水活動とメチル水銀およびジメチル水銀の生成挙動
2021 - 2026 リンの物質循環からとらえる地域循環共生の統合的研究
2021 - 2024 コメのメチル水銀汚染リスク低減のための土壌環境評価法の検討
2021 - 2024 Interdisciplinary research on mercury pollution by the ASGM, using the varved lacustrine sediments
2019 - 2023 The Dynamics of Mercury and Selenium Released by Submarine Volcanic Activity in Kagoshima Bay
2018 - 2021 Behavior of MeHg production in a Hg(II) ion spiked paddy field soil during multi-year rice cultivation and the mechanism of MeHg accumulation in rice grain
2016 - 2019 Spatiotemporal impact of mercury released from ASGM (Artisanal/Small scale Gold Mining)on agricultural and marine products: evaluation and countermeasures
2015 - 2019 Mercury speciation in preserved sludge which is estimated to be remaining under the reclaimed land area of Minamata Bay Japan.
2015 - 2018 Production of methylmercury in Hg contaminated paddy field and its effect to biological system
2013 - 2016 The behavior of mercury in the contaminated site and its impact on ecosystems
2012 - 2015 Study of influeces on environmental factors as for mercury methylation in Minamata Bay
2010 - 2012 The environmental behavior of mercury in contaminatedsites
2009 - 2011 Influence of density stratification on the dynamic behavior of high contaminated mercury at the mouth of Soca River in the Gulf of Trieste.
2008 - 2010 Investigation of influences of environmental factors as for mercury elution and mercury methylation in the soil
2006 - 2008 The behavior and environmental impact of mercury released from Idrija mercury mine, Slovenia
2006 - 2007 average quality of river waters in Japan
2005 - 2007 Vertical distributions of benthic foraminiferal assemblages and mercury in bottom sediments of Minamata and Fukuro Bays
2005 - 2006 Solubilization of mercury in soil and chemical changing of mercury species in soil by variety change of basic characteristics of soil
2003 - 2005 The behavior and environmental impact of mercury released through the human activity
2001 - 2003 Arsenic, antimony and mercury chemical forms and behavior in volcanic emissions
2001 - 2003 The change of the benthic foraminiferal assemblages influenced by a heavy metal pollution
2001 - 2002 The environmental impact of mercury released from the volcanic activity of Sakurajima
1997 - 1998 The behavior of mercury released from Sakurajima volcano.The environmental study.
1994 - 1994 触媒作用を利用した極微量ヨウ化物イオンとヨウ素酸イオンの分別定量法の開発
環境中における水銀の挙動の解明
触媒作用を利用した分析法の研究,及びその反応機構の研究
The behavior of mercury in environment
catalytic determination of trace amounts of element and its mechanistic study
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Papers (62)：
Takashi Tomiyasu, Hideaki Matsuki, Masanori Oda, Hitoshi Kodamatani, Ryo Kanzaki, Toru Kobari. Impact of mercury discharged from submarine volcano on inner bay ecosystems. Chemosphere. 2023. 339
Takashi Tomiyasu, Chihiro Nozoe, Wilder Leonardo Gamboa Ruiz, Hitoshi Kodamatani, Ryo Kanzaki. Distribution of selenium and mercury concentrations in sediments of Kagoshima Bay: can submarine volcanic activity affect the distribution of selenium in sediments?. Environmental Earth Sciences. 2023. 82. 20
Ryo Kanzaki, Tomoya Hidaka, Hitoshi Kodamatani, Takashi Tomiyasu. Determination of autoprotolysis (autoionization) constant according to gran's procedure on potentiometric titrations. Journal of Molecular Liquids. 2023. 384
Takashi Tomiyasu, Ryohei Shitauchi, Daigo Kasai, Toshiki Kitagawa, Hitoshi Kodamatani, Ryo Kanzaki. The distribution and dynamics of residual mercury from the Chisso chemical plant in sediments of the Yatsushiro Sea, western Kyushu, Japan: have recent sedimentations lowered surface mercury concentrations?. Environmental science and pollution research international. 2023. 30. 28. 72769-72781
Hitoshi Kodamatani, Shotaro Kubo, Akinori Takeuchi, Ryo Kanzaki, Takashi Tomiyasu. Sensitive Detection of Nitrite and Nitrate in Seawater by 222 nm UV-Irradiated Photochemical Conversion to Peroxynitrite and Ion Chromatography-Luminol Chemiluminescence System. Environmental science & technology. 2023. 57. 14. 5924-5933
