Toyoda Kazuhiro

トヨダカズヒロ | Toyoda Kazuhiro

Affiliation and department：
Job title： Associate Professor
Homepage URL (1)： http://www.ees.hokudai.ac.jp/ems/stuff/toyoda/SeigLab_en/Welcome.html

Research field (1)： Space and planetary science

Research keywords (15)：環境微生物 , 地球科学 , 放射化学 , 鉱物化学 , 元素分析 , 無機地球化学 , 環境化学 , Radiochemistry , Environmental Geochemistry , Analytical Geochemistry , Environmental Mineralogy , isotope Geochemistry , Inorganic Geochemistry , Paleolimnology , Bioremediation

Research theme for competitive and other funds (23)：

2012 - 2012 A new reconstructing method of Tsunami attack during the last several thousand years by Sr ratio measurements in a varve of a brackish lake
2009 - 2012 High-resolution environmental reconstruction for the Pacific civilizations using annually laminated lake sediments
2007 - 2009 High resolution multiple time scale analysis of Lake Biwa sediments-Research on climate and tectonics during past 150,000 years
2006 - 2008 Geological studies on extrusion of metamorphic nappe and changesin Indian monsoon
2005 - 2008 Sensitive detection of alkaline cryptotephra layers in deep-sea cores from the Sea of Japan using high-resolution INAA analysis

2005 - 2007 A study for the long-term and short-term disturbances of the envirnment by the extraterrestrial impact at the Cretaceous/Tertiary boundary

2003 - 2004 桿菌胞子の酸化酵素を活用してヒ素汚染地下水を浄化できる可能性についての基礎研究

2001 - 2003 Testing of the Snowball Earth hypothesis in terms of the cap carbonates, Namibia

1999 - 2001 Uplift of Himalayas and its induced Global Environmental Changes

1999 - 2001 A study on the environmental catastrophe at the K/T bundary

1999 - 2000 断層の活動履歴を断層物質中の鉛同位体比から復元する新手法の開発

1999 - 2000 Climatic change and Asian monsoon variation for the last 300 years recorded in coral skeleton of the South China Sea.

1996 - 1999 High-time-resolution reconstruction of sedimentary environment of Lake Biwa during the past ten and several thousand years by inorganic chemical determination.

1996 - 1997 放射性廃棄物処分地におけるアメリシウムの吸着材としての生物源燐酸塩に関する研究

1995 - 1995 深海性P/T(二畳紀/三畳紀)境界試料の地球化学的研究

1995 - 1995 断層粘土の形成に伴う微量元素の挙動について

1994 - 1995 Geochemical studies of Lake Baikal core sediment samples

1993 - 1994 Nuclear waste block-form and minerals of its natural analogue

1993 - 1994 第四紀気候変動が湖の天然の栄養状態に及ぼした影響について・・・琵琶湖とバイカル湖のボーリング・コア討料の解析から

1991 - 1991 Basic Study on Hemispheric Climatic Changes and on Transition of Paleoenvironments in Huge Tectonic Lakes.

1989 - 1990 Studies on Rare-earth and Radioactive Minerals of Alkalline Complexes in Brazil.

1986 - 1989 Basic Research on the Minerals Related to High-Level Radioactive Wastes.

レス堆積物及び湖底堆積物コアの無機化学分析と高精度な古環境変動解析、マンガン酸化バクテリアのマンガンイオン酸化反応機構と環境修復、古い活断層の活動履歴の検出法、隠れた火山灰層の検出法

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Papers (56)：

Kazuhiro Toyoda, Shota Nakano, Shunitz Tanaka, Kawawa Banda, Imasiku A. Nyambe, Tsuyoshi Ishikawa, Shouta Nakayama, Mayumi Ishizuka. Geochemical identification of particulate lead pollution in shallow groundwater in inhabited areas in Kabwe, Zambia. Applied Geochemistry. 2022. 139. 105215-105215
Erik Prasetyo, Kazuhiro Toyoda. Humic acid attachment on chitosan-modified silica gel as an economical, efficient, and selective adsorbent for thorium and uranium removal. Environmental Technology. 2021. 1-15
Junjiro N. Negishi, Aiko Hibino, Kazuki Miura, Ryota Kawanishi, Nozomi Watanabe, Kazuhiro Toyoda. Coupled benthic-hyporheic responses of macroinvertebrates to surface water pollution in a gravel-bed river. Freshwater Science. 2019. 38. 3. 591-604
Katsuya Ichihashi, Daisuke Konno, Kseniya Yu. Maryunina, Katsuya Inoue, Kazuhiro Toyoda, Shogo Kawaguchi, Yoshiki Kubota, Yoko Tatewaki, Tomoyuki Akutagawa, Takayoshi Nakamura, et al. Selective Ion Exchange in Supramolecular Channels in the Crystalline State. Angew. Chem. Int. Ed. 2019. 58. 13. 4169-4172
Katsuya Ichihashi, Daisuke Konno, Takuya Date, Takumi Nishimura, Kseniya Yu Maryunina, Katsuya Inoue, Toshimi Nakaya, Kazuhiro Toyoda, Yoko Tatewaki, Tomoyuki Akutagawa, et al. Optimizing Lithium Ion Conduction through Crown Ether-Based Cylindrical Channels in [Ni(dmit)(2)](-) Salts. CHEMISTRY OF MATERIALS. 2018. 30. 20. 7130-7137

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MISC (25)：

Chee Kong Yap, Wan Hee Cheng, Kazuhiro Toyoda. Ecological Risk Assessments of Heavy Metals in the Surface Sediment between the Artificial Granite Rocky Shore of Tanjung Harapan, Selangor. Sediment Watch: Monitoring, Ecological Risk Assessment and Environmental Management. 2018. Chapter 8
豊田和弘. 放射化分析専門研究会報告 : 参加者の視点から(平成21年度京都大学原子炉実験所専門研究会). 放射化分析. 2010. 0. 26. 59-61
篠塚良嗣, 任忠完, 豊田和弘. 過去4万年における琵琶湖コア中の重鉱物の運搬堆積に関する地球化学的記録と気候変動や古地震との関連(平成17年度京大原子炉実験所専門研究会要旨). 放射化分析. 2006. 0. 20. 37-38
篠塚良嗣, 豊田和弘, 宮田一成, 任忠完, 北川浩之, 安田黄憲. 琵琶湖と水月湖の湖底コアの放射化分析から検出した複数の鬱陵島テフラ(平成16年度京大原子炉実験所専門研究会講演要旨,研究紹介). 放射化分析. 2005. 0. 18. 40-40
村田拓也, 前野太平, 篠塚良嗣, 豊田和弘, 福澤仁之, 尹懐寧, 安田喜憲. 中国の風成塵堆積物の放射化分析(平成16年度京大原子炉実験所専門研究会講演要旨,研究紹介). 放射化分析. 2005. 0. 18. 41-41

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Books (3)：

地球と宇宙の化学辞典
朝倉書店 2012 ISBN:9784254160574
オゾン層破壊の科学
北海道大学出版会 2007
放射化分析ハンドブック-確度の高い多元素同時微量分析への実践
日本アイソトープ協会 2004

Lectures and oral presentations (2)：

Airborne radioactive contamination in urban areas from the nuclear accident in Fukushima
(the Second International Conference on Sustainable Built Environment (ICSBE) 2012 Universitas Islam Indonesia, Yogyakarta, Indonesia 2012)
Environmental purification by manganese-oxidizing bacteria.
(Annual meeting of Japan Society for Bioscience, Biotechnology, and Agrochemistry 2011 Kyoto 2011)

Education (6)：

- 1987 The University of Tokyo
- 1987 The University of Tokyo Graduate School, Division of Science
- 1984 The University of Tokyo
- 1984 The University of Tokyo Graduate School, Division of Science
- 1982 The University of Tokyo Faculty of Science

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Professional career (2)：

Ph.D., in Chemistry (The University of Tokyo)
Ph.D., in Chemistry (The University of Tokyo)

Work history (9)：

2005 - 2006 大学院地球環境科学研究院環境起学専攻助教授
2005 - 2006 Associate Professor
2006 - - 大学院環境科学院環境起学専攻准教授
1995 - 2005 大学院地球環境科学研究科物質環境科学専攻助教授
1995 - 2005 Associate Professor

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Committee career (5)：

2004 - 2006 中性子利用分析専門委員会委員
2002 - 日本分析化学会北海道支部幹事
日本鉱物学会編集委員
鉱物学会若手の会事務局(1996-1998)
日本分析化学会北海道支部庶務幹事(2006)

Association Membership(s) (9)：

放射化分析研究会 , 日本地球化学会 , 第四紀学会 , GEOCHEMICAL SOCIETY , Japan association of Activation Analysis , Japan association of Quaternary Research , The Geochemical Society of Japan , The Geochemical Society , 地球環境史学会

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