last modified：2024/12/21
Professor NAGAO Seiya
Faculty, Affiliation
Institute of Nature and Environmental Technology Institute of Nature and Environmental Technology
Director of Institute of Nature and Environmental Technology
College and School Educational Field
Division of Material Chemistry, Graduate School of Natural Science and Technology
Division of Material Chemistry, Graduate School of Natural Science and Technology
School of Chemistry, College of Science and Engineering
Laboratory
Low Level Radioactivity Laboratory TEL:0761-51-4440 FAX:0761-51-5528
Academic Background
【Academic background(Doctoral/Master's Degree)】
Hokkaido University Doctor Graduate School of Fisheries Science 199003 Accomplished credits for doctoral program
Hokkaido University Master Graduate School of Fisheries Science 198603 Completed
【Degree】
Ph.D
Career
Japan Atomic Energy Research Institute(1990/04/01-1999/03/31)
Japan Atomic Energy Research Institute(1999/04/01-2001/03/31)
Japan Atomic Energy Research Institute(2001/04/01-2001/09/30)
Hokkaido University Associate Professor(2001/10/01-2005/03/31)
Hokkaido University Associate Professor(2005/04/01-2007/03/31)
Hokkaido University Assoicate Professor(2007/04/01-2008/12/31)
Kanazawa University Inst. of Nature and Environ. Technol, Professor(2009/01/01-)
Year & Month of Birth
1962/03
Academic Society
Atomic Energy Society of Japan
The Japan Society of Nuclear and Radochemical Sciences
The Geochemical Society of Japan
The Ocenographic Society of Japan
Japan Society on WAter Environment
The Japan Society for Analytical Chemistry
American Geophysical Union
International Humic Substances Society
Award
International Humic Substances Society
International Humic Substances Society
Specialities
Environmental dynamic analysis
Speciality Keywords
Environmental monitoring, Organic matter, Radionuclides
Research Themes
Characteristics of organic matter and its transport in river systems
Characteristics of dissolved organic matter in groundwaters and their complexation properties with radionuclides
Migration behavior of materials in Satoyama and Satoumi
Books
- 長尾, 誠也 Impacts of Fukushima nuclear accident on freshwater environments Springer Nature Singapore 2021
- Seiya Nagao Environmental Contamination from the Fukushima Nuclear Disaster Cambridge University Press 2019/08
- Nagao, S,Hong Tuoi Bui,Kawano, Y,Suzuki, T,Ochiai, S,Yonebayashi, K,Okazaki, M,Goto, A,Hasegawa, T,Yamamoto, M Reclamation and land consolidation effects on organic matter sedimentation in Lake Kiba-gata, Japan. Geomorphology and Society: Advance in Geographical and Environmental Sciences Springer Japan 2016
- S.Nagao, T.Aramaki, N.Fujitake, T.Matsunaga, Y.Tkachenko Radiocarbon of dissolved humic substances in river waters from the Chernobyl area 223-224 848-853 2004
- Ochiai, S,Nagao S,Itono T,Suzuki T,Kashiwaya K,Yonebayashi K,Okazaki M,Kaeriyama M,Qin Y,Hasegawa T,Yamamoto M Earth Surface Processes and Environmental Changes in East Asia- Records from Lake Catchment Systems Springer Japan 2015
- NAGAO Seiya 全世界の河川辞典 丸善 2013/07
Papers
- Unique current connecting Southern and Indian Oceans identified from radium distributions Mutsuo Inoue,Shotaro Hanaki,Hiroaki Kameyama,Yuichiro Kumamoto,Seiya Nagao Scientific Reports 12 1 2022/12
- Addition of polyvinyl pyrrolidone during density separation with sodium iodide solution improves recovery rate of small microplastics (20–150 μm) from soils and sediments Naoya Katsumi,Seiya Nagao,Hiroshi Okochi Chemosphere 307 135730 2022/11
- Distributions of 210Pb, 137Cs, and physical properties in bottom sediments od West Nanao Bay, Japan. Ochiai, S,Fujita, A,Tokunari, T,Sakai, H,Nagao S Radiation Protection Dosimetry 198 13-15 1058 2022/09
- Temporal variation in radiocesium concentrations in waters of the Natsui and Same Rivers, south Fukushima Prefecture, Japan from 2011 to 2020. Nagao, S,Kanamori, M,Shimamura, A,Morokado, T,Putra, D,Fujita, T,Tomihara, S,Ochiai, S Radiation Protection Dosimetry 198 13-15 947 2022/09
- Seasonal Variation and Vertical Distribution of Inorganic Nutrients in a Small Artificial Lake, Lake Bulan, in Mongolia Ariunsanaa Baterdene,Seiya Nagao,Baasanjav Zorigt,Altansukh Ochir,Keisuke Fukushi,Davaadorj Davaasuren,Baasansuren Gankhurel,Enkhuur Munkhsuld,Solongo Tsetsgee,Ariuntungalag Yunden Water 14 12 1916 2022/06/14
- Transport of reactive materials in the Sea of Japan: Implications from fine-resolution surface distribution of 228Th/228Ra ratio Mutsuo Inoue,Yuhei Shirotani,Toshiki Morokado,Shotaro Hanaki,Hiroaki Kameyama,Hisaki Kofuji,Akira Okino,Masa-aki Yoshida,Shizuho Miki,Takafumi Shikata,Naoto Honda,Tetsutaro Takikawa,Masaya Morita,Seiya Nagao Continental Shelf Research 241 104749 2022/05
- Transport paths of radiocesium and radium isotopes in the intermediate layer of the southwestern Sea of Okhotsk Mutsuo Inoue,Kaisei Mashita,Hiroaki Kameyama,Ryosei Takehara,Shotaro Hanaki,Hideki Kaeriyama,Shizuho Miki,Seiya Nagao Journal of Environmental Radioactivity 250 106931 2022/09
- Chemical Characteristics of Water-Soluble Inorganic Ions in Different Types of Asian Dust in Wajima, a Background Site in Japan Pengchu Bai,Hao Zhang,Xuan Zhang,Yan Wang,Lulu Zhang,Seiya Nagao,Bin Chen,Ning Tang Atmosphere 13 8 1210 2022/08/01
- Spread of Fukushima-derived radiocesium over the coastal ocean in response to typhoon-induced flooding in September 2011 Kiyoshi Tanaka,Seiya Nagao,Yujiro Kitade,Masato Niki,Takaaki Katsumata,Toru Miyama,Hiroshi Yoshinari LIMNOLOGY AND OCEANOGRAPHY 67 5 1184 2022/05
- Seasonal variations in marine polycyclic aromatic hydrocarbons off Oki Island, Sea of Japan, during 2015–2019 Tetsuya Matsunaka,Seiya Nagao,Mutsuo Inoue,Rodrigo Mundo,Saki Tanaka,Ning Tang,Masa-aki Yoshida,Masanori Nishizaki,Masaya Morita,Tetsutaro Takikawa,Nobuo Suzuki,Shouzo Ogiso,Kazuichi Hayakawa Marine Pollution Bulletin 180 113749 2022/07
- Association of dissolved radionuclides released by the Chernobyl accident with colloidal materials in surface water T Matsunaga,S Nagao,T Ueno,S Takeda,H Amano,Y Tkachenko APPLIED GEOCHEMISTRY 19 10 1581 2004/10
- Diffusive transport of neptunium and plutonium through compacted sand-bentonite mixtures under anaerobic conditions T. Yamaguchi,S. Nakayama,S. Nagao,M. Kizaki RADIOCHIMICA ACTA 95 2 115 2007
- Combined use of delta C-14 and delta C-13 values to trace transportation and deposition processes of terrestrial particulate organic matter in coastal marine environments S Nagao,T Usui,M Yamamoto,M Minagawa,T Iwatsuki,A Noda CHEMICAL GEOLOGY 218 1-2 63 2005/05
- Changes in elemental composition, molecular weight and H-1 NMR spectra of the water-extractable hydrophobic acid fraction in Cambisol with season and soil depth Daichi Asakawa,Hidemasa Mochizuki,Yukiko Yanagi,Takeshi Suzuki,Seiya Nagao,Nobuhide Fujitake SOIL SCIENCE AND PLANT NUTRITION 52 3 361 2006/06
- Low levels of Fukushima Dai-ichi NPP-derived radiocesium in marine products from coastal areas in the Sea of Japan (2012–2017) Mutsuo Inoue,Shiori Yamashita,Ryosei Takehara,Shizuho Miki,Seiya Nagao Applied Radiation and Isotopes 145 187 2019/03
- Rare earth element distributions in rivers and sediments from the Erdenet Cu–Mo mining area, Mongolia Takashi Munemoto,Tsetsgee Solongo,Akihiro Okuyama,Keisuke Fukushi,Ariuntungalag Yunden,Taivanbat Batbold,Ochir Altansukh,Yoshio Takahashi,Hisanori Iwai,Seiya Nagao Applied Geochemistry 123 104800 2020/12
- Convection of surface water in the northeastern Japan Sea: Implications from vertical profiles of 134Cs concentrations Mutsuo Inoue,Ryosei Takehara,Shiori Yamashita,Tomoharu Senjyu,Takami Morita,Shizuho Miki,Seiya Nagao Marine Chemistry 214 103661 2019/08
- Kuroshio fractions in the southwestern sea of Japan; implications from radium isotopes Mutsuo Inoue,Yuhei Shirotani,Toshiki Morokado,Shotaro Hanaki,Masashi Ito,Hiroaki Kameyama,Hisaki Kofuji,Akira Okino,Takafumi Shikata,Masa-aki Yoshida,Seiya Nagao Continental Shelf Research 214 104328 2021/02
- Interannual changes in radiocesium concentrations in annually laminated tufa following the Fukushima Daiichi Nuclear Power Plant accident Nagayoshi Katsuta,Yoshiki Miyata,Takuma Murakami,Yoshihisa Mino,Sayuri Naito,Koji Yasuda,Shinya Ochiai,Osamu Abe,Atsushi Yasuda,Maki Morimoto,Shin-ichi Kawakami,Seiya Nagao Applied Geochemistry 102 34 2019/03
- Relationship between carbon isotope composition of river bottom sediments and land use effects on a watershed in a small river system: Kumaki River, Japan Nagao, S,Suzuki, T,Ochiai, S,Goto, A.S,Aramaki, T,Hasegawa, T Chikei/Transactions, Japanese Geomorphological Union 41 3 295 2020/08
- Spatial‐Temporal variation and its controlling factors of radiocesium concentration in coastal sediment off Abukuma River 長尾誠也,寺崎聡一郎,落合伸也,福士圭介,浅見光史,小田野直光 海上技術安全研究所報告(Web) 18 2 227‐239 (WEB ONLY) 2019/01/28
- Distributions of radiocesium and radium isotopes in the western Bering Sea in 2018 Mutsuo Inoue,Ryosei Takehara,Shotaro Hanaki,Hiroaki Kameyama,Jun Nishioka,Seiya Nagao Marine Chemistry 225 103843 2020/09
- Transport processes of suspended and riverbed sediments inferred from atmospheric radionuclides in the Kumaki River, Japan Ochiai, S,Tokunari, T,Suzuki, T,Nagao, S Chikei/Transactions, Japanese Geomorphological Union 41 3 313 2020/08
- Organic carbon accumulation and productivity over the past 130 years in Lake Kawaguchi (central Japan) reconstructed using organic geochemical proxies Shinya Yamamoto,Aurelia Hubert-Ferrari,Laura Lamair,Yoshiki Miyata,Shinya Ochiai,Seiya Nagao,Nobuo Miyauchi,Kunio Yoshida,Osamu Fujiwara,Yusuke Yokoyama,Vanessa M. A. Heyvaert,Marc De Batist JOURNAL OF PALEOLIMNOLOGY 64 4 365 2020/12
- Carbon Isotope Composition and Its Variation of Particulate Organic Matter in River Waters from the Kuzuryu River System NAGAO Seiya,KANAMORI Masaki,OCHIAI Shinya BUNSEKI KAGAKU 69 12 707 2020/12/05
- The role of coated fertilizer used in paddy fields as a source of microplastics in the marine environment Naoya Katsumi,Takasei Kusube,Seiya Nagao,Hiroshi Okochi Marine Pollution Bulletin 161 Pt B 111727 2020/12
- Circulation paths of 134Cs in seawater southwest of Japan in 2018 and 2019 Mutsuo Inoue,Ryosei Takehara,Tetsutaro Takikawa,Yuhei Shirotani,Takami Morita,Naoto Honda,Seiya Nagao Journal of Environmental Radioactivity 223-224 106382 2020/11
- Desorption Behavior of Fukushima-derived Radiocesium in Sand Collected from Yotsukura Beach in Fukushima Prefecture Seiya NAGAO,Soichiro TERASAKI,Shinya OCHIAI,Keisuke FUKUSHI,Seiichi TOMIHARA,Mathew A. CHARETTE,Ken O. BUESSELER Analytical Sciences 36 5 569 2020/05/10
- Interannual Survey on Polycyclic Aromatic Hydrocarbons (PAHs) in Seawater of North Nanao Bay, Ishikawa, Japan, from 2015 to 2018: Sources, Pathways and Ecological Risk Assessment Rodrigo Mundo,Tetsuya Matsunaka,Hisanori Iwai,Shouzo Ogiso,Nobuo Suzuki,Ning Tang,Kazuichi Hayakawa,Seiya Nagao International Journal of Environmental Research and Public Health 17 3 904 2020/02/01
- Sedimentary rhythm of Mn-carbonate laminae induced by East Asian summer monsoon variability and human activity in Lake Ohnuma, southwest Hokkaido, northern Japan Nagayoshi Katsuta,Sayuri Naito,Hisashi Ikeda,Kuniaki Tanaka,Takuma Murakami,Shinya Ochiai,Yoshiki Miyata,Mayuko Shimizu,Asuka Hayano,Konami Fukui,Hitoshi Hasegawa,Seiya Nagao,Mayuko Nakagawa,Kana Nagashima,Masakazu Niwa,Masafumi Murayama,Masako Kagawa,Shin-ichi Kawakami Quaternary Science Reviews 248 106576 2020/11
- A nano-sized gel-in-oil suspension for transcutaneous protein delivery Safrina Dyah Hardiningtyas,Seiya Nagao,Emiko Yamamoto,Nana Shirakigawa,Rie Wakabayashi,Masahiro Goto,Hiroyuki Ijima,Noriho Kamiya International Journal of Pharmaceutics 567 118495 2019/08
- The mineralization rate of black soil carbon in the deep layers of Japanese volcanic ash soil may be easily accelerated by labile carbon supply Yasuo Iimura,Daichi Tanaka,Seiya Nagao,Nobuhide Fujitake,Toshiyuki Ohtsuka Soil Science and Plant Nutrition 66 3 415 2020/05/03
- Accumulation of microcapsules derived from coated fertilizer in paddy fields Naoya Katsumi,Takasei Kusube,Seiya Nagao,Hiroshi Okochi Chemosphere 267 129185 2021/03
- Lateral variations of 134Cs and 228Ra concentrations in surface waters in the western North Pacific and its marginal sea (2018–2019): Implications for basin-scale and local current circulations Mutsuo Inoue,Shotaro Hanaki,Ryosei Takehara,Hisaki Kofuji,Tetsuya Matsunaka,Hiroshi Kuroda,Yukiko Taniuchi,Hiromi Kasai,Takami Morita,Shizuho Miki,Seiya Nagao Progress in Oceanography 195 102587 2021/07
- Dynamics of Radioactive Cesium in Coastal Area Linked with River Discharge Toshiharu Misonou,Tadahiko Tsuruta,Takehiko Shiribiki,Takahiro Nakanishi,Seiya Nagao,Shinya Ochiai,Yukihisa Sanada Journal of Coastal Research 114 sp1 2021/10/06
- Variations in traffic-related polycyclic aromatic hydrocarbons in PM2.5 in Kanazawa, Japan, after the implementation of a new vehicle emission regulation Wanli Xing,Lu Yang,Hao Zhang,Xuan Zhang,Yan Wang,Pengchu Bai,Lulu Zhang,Kazuichi Hayakawa,Seiya Nagao,Ning Tang JOURNAL OF ENVIRONMENTAL SCIENCES 121 38 2022/11
- Characteristics and unique sources of polycyclic aromatic hydrocarbons and nitro-polycyclic aromatic hydrocarbons in PM2.5 at a highland background site in northwestern China Lulu Zhang,Lu Yang,Jianrong Bi,Yuzhi Liu,Akira Toriba,Kazuichi Hayakawa,Seiya Nagao,Ning Tang ENVIRONMENTAL POLLUTION 274 116527 2021/04
- Sustainable Plant Growth Promotion and Chemical Composition of Pyroligneous Acid When Applied with Biochar as a Soil Amendment Keiji Jindo,Travis Luc Goron,Soboda Kurebito,Kazuhiro Matsumoto,Tsugiyuki Masunaga,Kouki Mori,Kazuhiro Miyakawa,Seiya Nagao,Takeo Tokunari Molecules 27 11 3397 2022/05/25
- The input–output balance of microplastics derived from coated fertilizer in paddy fields and the timing of their discharge during the irrigation season Naoya Katsumi,Takasei Kusube,Seiya Nagao,Hiroshi Okochi Chemosphere 279 130574 2021/09
- PM-Bound Polycyclic Aromatic Hydrocarbons and Nitro-Polycyclic Aromatic Hydrocarbons in the Ambient Air of Vladivostok: Seasonal Variation, Sources, Health Risk Assessment and Long-Term Variability Yan Wang,Hao Zhang,Xuan Zhang,Pengchu Bai,Andrey Neroda,Vassily F. Mishukov,Lulu Zhang,Kazuichi Hayakawa,Seiya Nagao,Ning Tang INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 19 5 2878 2022/03/01
- Variations in traffic-related water-soluble inorganic ions in PM2.5 in Kanazawa, Japan, after the implementation of a new vehicle emission regulation Wanli Xing,Lu Yang,Hao Zhang,Xuan Zhang,Yan Wang,Pengchu Bai,Lulu Zhang,Kazuichi Hayakawa,Seiya Nagao,Ning Tang ATMOSPHERIC POLLUTION RESEARCH 12 12 101233 2021/12
- Geochemical Control of PAHs by Inflowing River Water to West Nanao Bay, Japan, and Its Influences on Ecological Risk: Small-Scale Changes Observed under Near-Background Conditions at an Enclosed Bay Rodrigo Mundo,Tetsuya Matsunaka,Hisanori Iwai,Shinya Ochiai,Seiya Nagao International Journal of Environmental Research and Public Health 18 19 10310 2021/09/30
Conference Presentations
- Changing concept of material cycle and its boundaries-an example of the Fukushima Nuclear Power Plant accident-(conference：The XII International Scientific Meeting on Border Regions in Transition (BRIT XII-2012))(2012/11/14)
- Monitoring of Japanese rivers(Outlines of official hydrological and hydrochemical monitoring program in Japan)(conference：Amur-Okhotsk Consortium & Institute of Water and Ecology Problems FEB RAS -Joint Research Cruise in Amur River 2012-)(2012/09/27)
- Migration behaviour of 134Cs and 137Cs derived from the Fukushima Daiichi NPP in river systems in Fukushima Prefecture, Japan after a heavy rain event(conference：The 9th East Asia International Workshop on Present Earth Surface Processes and Long-term Environmental Changes in East Asia)(2012/10/10)
- Export of 134Cs and 137Cs in the Fukushima river systems at the heavy rain event in September 2011(conference：2012 ASLO Aquatic Sciences Meeting)(2012/07)
- Characteristics and behavior of particle organic matter in the Kumaki River and Nanao Bay on Noto Peninsula, Japan(conference：2012 ASLO Aquatic Sciences Meeting)(2012/07)
- Vertical profiles of low 134Cs and 137Cs concentrations in seawaters of the Japan Sea after the Fukushima Dai-ichi Nuclear Power Plant accident(conference：6th International Conference on Radionuclide Metrology Loe-level Radioactivity Measurement Techniques)(2012/09)
- Dispersion of Cs-134 and Cs-137 in river waters from Fukushima and Gunma Prefecture at nine months after the Fukuhsima accident(conference：ICRS-12 & RSPD 2012)(2012/09)
- Pulse input of Cs-134 and Cs-137 from river to coastal region in Fukushima area by heavy rain events(conference：Science symposium on the accident at Fukushima Daiichi-Exploring the impacts of radiation on the ocean)(2012/11)
- Catchment environmental changes inferred from geochemical properties of Lake Onuma sediment, Japan(conference：The 9th East Asia International Workshop on Present Earth Surface Processes and Long-term Environmental Changes in East Asia)(2012/10/10)
- Deposition records in lake sediments in western Japan of radioactive Cs from the Fukushima Dai-ichi Nuclear Power Plant accident(conference：6th International Conference on Radionuclide Metrology Loe-level Radioactivity Measurement Techniques,)(2012/09)
- Variation in D14C and d13C values of dissolved humic and fulvic acids in the Tokachi River system in northern Japan(conference：Radiocarbon 21th International Conference)(2012/08)
- Catchment environmental changes inferred from Lake Onuma in Hokkaido, Japan(conference：2012 ASLO Aquatic Sciences Meeting)(2012/07)
- Transport and sedimentation of terrestrial organic matter in the Kumaki River and Nanao Bay in Japan(conference：AOGS 11th Annual Meeting)(2014/07)
- Transport of POM in Japanese river systems after heavy rain events by typhoon in 2011-2013(conference：The 17th Meeting of the International Humic Substances Society)(2014/09)
- Migration behavior of 134Cs and 137Cs in the Niida River water in Fukushima Prefecture, Japan during 2011-2012(conference：5th Asia-Pacific Symposium on Radiochemistry '13(APSORC 2013))(2013/09/25)
- Sediment transport processes in reservoir-catchment system inferred from sediment trap observation and fallout radionuclides(conference：5th Asia-Pacific Symposium on Radiochemistry '13(APSORC 2013))(2013/09/24)
- Sedimentary environment inferred from sedimentation rates by 210Pb and 137Cs and their inventories in Mutsu Bay, Japan(conference：5th Asia-Pacific Symposium on Radiochemistry '13(APSORC 2013))(2013/09/24)
- Variation of 134Cs and 137Cs radioactivity in river waters from the Tone River system during snow-melting season(conference：AOGS 11th Annual Meeting)(2014/07)
- Transport of particulate organic radiocarbon in the northwest Pacific region(conference：18th Pacific-Asian Marginal Seas Meeting)(2015/04/21)
- Japan Agency for Marine-Earth Science and Technology, Japan.(conference：5th Asia-Pacific Symposium on Radiochemistry '13(APSORC 2013))(2013/09/23)
- Transport of 134Cs and 137Cs in the lower Niida River in Fukushima Prefecture, Japan after the Fukushima Dai-ichi Nuclear Power Plant accident(conference：INQUA2015)(2015/07/28)
- Catchment environmental changes inferred from geochemical properties of Lake Onuma sediment, Japan(conference：The 10th East Eurasia International Workshop on Present Earth Surface Processes and Long-term Environmental Changes in East Eurasia)(2013/10)
- Transport of 134Cs and 137Cs in the Natsui River and Same River in Fukushima Prefecture, Japan(conference：2013 Taiwan Geosciences Assembly (LOICZ-Land Ocean Interaction in the Coastal Monitoring))(2013/05)
- Sedimentation processes of radioactive Cs contaminated soil in storage reservoirs in Iwaki, Fukushima prefecture(conference：12th East East EurasiaInternational Workshop: Present Earth Surface Processes and Long-term Environmental Changes in East Eurasia)(2015/09/05)
- Cs-134 and Cs-137 radioactivity in river waters in Fukuhsima, Miyagi, Ibaraki and Gunma Prefectures in August 2012 after the Fukushima Dai-ichi Nuclear Power Plant accident(conference：3rd International Conference on Radioecology and Environmental Radioactivity (ICRER 2014))(2014/09)
- Study of factors controlling organic pollution in Lake Kiba(conference：5th Asia-Pacific Symposium on Radiochemistry '13(APSORC 2013))(2013/09/25)
- Ra isotopes in Na-Cl type groundwater in Japan(conference：5th Asia-Pacific Symposium on Radiochemistry '13(APSORC 2013))(2013/09/24)
- Transport of dissolved and particulate forms of 134Cs and 137Cs in river waters from Fukushima Prefecture after the Fukushima Daiichi Nuclear Power Plant accident(conference：Second Russian-Japanese seminar “Behaviors of Polycyclic Aromatic Hydrocarbons and Radioactive Compounds in atmosphere and marine environment at East Asia”)(2013/08/02)
- Vertical profiles of 228Ra and 226Ra activities in the Sea of Japan and their implications for water circulation(conference：5th Asia-Pacific Symposium on Radiochemistry '13(APSORC 2013))(2013/09/24)
- Lateral distributions of 228Th/228Ra and 228Ra/226Ra ratios in surface waters of the Sea of Japan and their physical implications(conference：5th Asia-Pacific Symposium on Radiochemistry '13(APSORC 2013))(2013/09/24)
- Low levels of 134Cs and 137Cs in bottom sediments along the Japanese archipelago side of the Sea of Japan after the Fukushima Dai-ichi NPP accident(conference：5th Asia-Pacific Symposium on Radiochemistry '13(APSORC 2013))(2013/09/23)
- Transport of 134Cs and 137Cs in the lower Abukuma River after the Fukushima Dai-ichi Nuclear Power Plant accident(conference：ICOBTE 2015)(2015/07/15)
- Study on transport of particulate organic matter in river and coastal marine system using radiocarbon (Plenary talk)(conference：5th Asia-Pacific Symposium on Radiochemistry '13(APSORC 2013))(2013/09/24)
- Temporal variations of COD concentration in Lake Kiba, Japan during 2013-2014(conference：12th East Eurasia International Workshop: Present Earth Surface Processes and Long-term Environmental Changes in East Eurasia)(2015/09)
- Distribution of 134Cs and 137Cs radioactivity in seawaters from the coastal area off Fukushima to Pacific Ocean(conference：Third Russian-Japanese Seminar “Behaviours of Polycyclic Aromatic Hydrocarbons and Radioactive Compounds in atmosphere and marine environment at East Asia”)(2013/08/07)
- Isotopic U, Pu, Am and Cm signatures in environmental samples from the Fukusima Dai-ichi Nuclear Power Plant accident. 5th Asia-Pacific Symposium on Radiochemistry.(conference：5th Asia-Pacific Symposium on Radiochemistry '13(APSORC 2013))(2013/09/24)
- Migration pattern of the Tsushima Warm Current within/around the Sea of Japan: Implications from transport of 228Ra(conference：18th Pacific-Asian Marginal Seas Meeting)(2015/04/21)
- Impact of reclamation and land consolidation on COD in Lake Kiba, Japan(conference：The Inaugural Conference of OGU commission on Geomorpholgy and Society “Earth Surface Processes and Impact to the Changing Environment”)(2014/09)
- Transport of 134Cs and 137Cs in river waters from Fukushima Prefecture in Japan during 2011-2012(conference：IAPSO 2013 IAHS/IAPSO/IASPEI Joint Assembly)(2013/07)
- Natural and anthropogenic impacts on the transport of particulate organic matter inferred from reservoir sediments in the Noto Peninsula, Japan.(conference：2019 Taiwan Geosciences Assembly)(2019/05/16)
- Study on dynamics of organic matter in river systems using Δ14C(conference：日本質量分析学会・日本プロテオーム学会 2018年合同大会)(2018/05/17)
- Tentative results of Ra isotopes in sea waters collected from the 2016 research expedition(conference：Japan-Russia Workshop “Study on dynamics of radioactive compounds and polycyclic aromatic hydrocarbons in the Japan Sea area”)(2017/09/29)
- Water mass movement and dynamics of trace elements in the Japan Sea(conference：Symposium on collaboration research between POI of FEBRUS and INET of Kanazawa University: Behavior of organic pollutants and radionuclides in the Japan Sea)(2017/05/15)
- Temporal variations of particulate organic matter in Lake Kiba, Japan during 2015-2016(conference：18th International Conference of International Humic Substances Society)(2016/09/15)
- Variations in 134Cs and 137Cs radioactivity of coastal marine sediments off the Abukuma River in Japan during 2013-2015(conference：Goldshcmidt2016)(2016/07/01)
- Transport of POM in Fukushima River systems after heavy rain events in 2011-2015(conference：18th International Conference of International Humic Substances Society)(2016/09/15)
- Sedimentation processes inferred from radionuclides and physical properties of coastal sediments in Nanao Bay, Japan(2018/10)
- Dynamics of particulate organic matter in a small lagoon, Lake Kiba, in Japan(2018/05/24)
- Erosion and transport processes of earth surface materials in river catchment systems inferred from atmospheric radionuclides.(conference：Workshop for source identification and transport processes in river systems)(2019/05/13)
- Study of Sedimentary Environment of Lake Akkeshi and Akkeshi Bay by Using 210Pb(conference：15th International Workshop Present Earth Surface Processes and Long-term Environmental Changes in East Eurasia)(2018/10)
- Sedimentation Environmental Changes Inferred from Fallout Radionuclides and Physical Properties of Sun Moon Lake Sediment in Taiwan(conference：The 6th Asia-Pacific Symposium on Radiochemistry (APSORC17))(2017/09)
- Existence Forms and Distribution Characteristics of Radiocesium in Marine Sediments in the Coastal Area off Fukushima Prefecture(conference：The 6th Asia-Pacific Symposium on Radiochemistry (APSORC17))(2017/09)
- Temporal variations in PAHs at Tsukumo Bay during 2014–2017(conference：The 3rd Regional IWA Diffuse Pollution Conference - 2018,)(2018/11/21)
- Anthropogenic iodine-129 and PAHs in seawater from the Japan Sea and the southern Okhotsk Sea(conference：International Symposium “Environmental researches in northern Japan Sea and related regions: Renewed horizon of Japan-Russia scientific partnership”)(2018/03)
- Fate of particulate radiocesium (134Cs, 137Cs) in coastal marine environment off Fukushima Prefecture, Japan(conference：Japan-Russia workshop on state of radionuclides in marine environment)(2017/11/03)
- Transport of Particulate Organic Matter in Kumaki River by Rain Event of Typhoon Talim(conference：16th Annual Meeting Asia Oceania Geosciences Society(AOGS2019))(2019/07/28)
- Effects of radiocesium released from Fukushima Dai-ichi Nuclear Power Plant accident on aquatic environment around Onahama, Japan(conference：IAP)(2018/10/07)
- Relationship between caron isotope composition and land-use of watershed in a small river system, Kumaki River in Japan(conference：11th International Conference on Humic Substances in Ecosystems (HSE11))(2017/05)
- Transport processes of earth surface materials based on stable and radioactive isotopes of reservoir sediments in Noto Peninsula(conference：Symposium to Promote Joint Usage / Research Center, Institute of Nature and Environmental Technology)(2017/02/28)
- Transport processes of earth surface materials in a reservoir-catchment system inferred from the atmospheric radionuclides(conference：International Symposium “Research Frontiers of Transboundary Pollution”)(2019/01/25)
- Low-level of the FDNPP-derived Radiocesium in Marine Products around the Western Japanese Archipelago(conference：The 6th Asia-Pacific Symposium on Radiochemistry (APSORC17))(2017/09)
- Relationship between COD and organic matter in surface water from Lake Kiba-gata, Japan(conference：13th East Eurasia International Workshop on Present Earth Surface Processes and Long-term Environmental Changes in East Eurasia)(2016/10/15)
- Transport processes of particulate organic matter in reservoir-catchment systems in Noto Peninsula, Japan(conference：The 13th East Eurasia International Workshop on Present Earth Surface Processes and Long-term Environmental Changes in East Eurasia)(2016/10/15)
- Environmental behavior of the PAHs along the Tsushima Current during 2014-2017(conference：International Symposium “Research Frontiers of Transboundary Pollution”)(2019/01/24)
- Downward variation of organic carbon isotopes in suspended solids from a small river with forest and paddy field at Noto Penninsula, Japan.(conference：2019 Taiwan Geosciences Assembly)(2019/05/16)
- Radioactivity Variation and Transport Behavior of Radiocesium in the Natsui River after the Fukushima Dai-Ichi Nuclear Power Plant Accident(conference：The 6th Asia-Pacific Symposium on Radiochemistry (APSORC17))(2017/09)
- Profile of Institute of Nature and Environmental Technology, Kanazawa University, Japan.(conference：Workshop for source identification and transport processes in river systems)(2019/05/13)
- Existence forms and distribution of radiocesium in marine sediments in the coastal area off Fukushima and Miyagi Prefecture(conference：Japan-Russia workshop on state of radionuclides in marine environment)(2017/11/03)
- Plantation impacts on the transport of particulate organic matter printed in the reservoir sediments in the Noto Peninsula, Japan(conference：18th International Conference of International Humic Substances Society)(2016/09/12)
- Low-levels of 134Cs in riverine suspended solids discharged to coastal areas off central Honshu in the Sea of Japan(conference：The 6th Asia-Pacific Symposium on Radiochemistry (APSORC17))(2017/09)
- Vertical Profiles of FDNPP-derived Radiocesium Concentrations in Southwestern Okhotsk Sea Waters(conference：The 6th Asia-Pacific Symposium on Radiochemistry (APSORC17))(2017/09)
- Effects of Snow Melt and Rain Event on Transport of Radiocesium in the Tone River after the Fukushima Dai-Ichi Nuclear Power Plant(conference：The 6th Asia-Pacific Symposium on Radiochemistry (APSORC17))(2017/09)
- Study on organic matter dynamics in an organic pollution lake, Lake Kiba using carbon isotope composition(conference：15th International Workshop Present Earth Surface Processes and Long-term Environmental Changes in East Eurasia)(2018/10)
- Transport processes of earth surface materials and atmospheric radionuclides in reservoir-catchment system(2018/05/24)
- Effects of Radiocesium Released from the Fukushima Dai-Ichi Nuclear Power Plant Accident on Aquatic Environment Around Onahama, Japan(conference：10th International Aquarium Congress 2018 Fukushima)(2018/11/07)
- Research of submarine groundwater discharge using 222Rn in Nanao West Bay(2018/05/24)
- Downward variation of organic carbon isotopes in suspended solids from a small river with forest and paddy field at Noto Penninsula, Japan.(2019/05/26)
- Variations in 134Cs and 137Cs radioactivity of coastal marine sediment off the Abukuma River in Japan during 2013-2015(conference：Division of Science Presenta. Yale-NUS College)(2017/11/14)
- Research activities of Institute of Nature and Environmental Technology, Kanazawa University, Japan.(conference：KU-PKU Joint Workshop on Environmental Issues)(2019/01/07)
- Migration behavior of radiocesium derived from Fukushima Dai-ichi Nuclear Power Plant accident in NatsuiRiver and Tone River(2019/05/27)
- Hydrological Impacts of Typhoons on Watershed Ecosystems(conference：16th Annual Meeting Asia Oceania Geosciences Society(AOGS2019))(2019/08/01)
- Temporal variation of radiocesium concentration in surface marine sediments at coastal area off Fukushima Prefecture, Japan(conference：26th International Conference «Marine Science and Technology for Sustainable Development» (PACON-2019))(2019/07/16)
- Seasonal study of seawater PAHs in Nanao Bay in 2019.(conference：Understanding Present Environmental Situation of Marginal Sea)(2019/12/16)
- Surface distribution of dissolved polycyclic aromatic hydrocarbons along northeastern Japan Sea and Okhotsk Sea
- PEI-ガラスフィルターによる腐植物質と会合した多環芳香族炭化水素の膜分離．(2019/09/18)
- Spatial-temporal distribution of polycyclic aromatic hydrocarbons in seawater at West Nanao Bay, Noto Peninsula
- Sunmarine groundwater at Nanao Bay: Field research results during 2018-2020(2021/03/10)
- Spatial variations of polycyclic aromatic hydrocarbons (PAHs) in West Nanao Bay, Noto Peninsula(2019/11/29)
- Short-term dynamics of dissolved major and trace elements in Lake Kiba-gata.(conference：The 16th East Eurasia International Workshop Present Earth Surface Processes and Long-term Environmental Changes in East Eurasia)(2019/09/17)
- Partitioning of free- and humic substances bound-polycyclic aromatic hydrocarbons using a glass fiber filter coated with polyethylenimine.(conference：AGU Fall Meeting 2019)(2019/12/09)
- Introduction of the international symposium "Integrated Environmental Studies"(conference：Joint Usage/Joint Research Symposium on Integrated Environmental Studies)(2019/12/18)
- Transport of Particulate Organic Matter in Kumaki River by Rain Event of Typhoon Talim(conference：16th Annual Meeting Asia Oceania Geosciences Society(AOGS2019))(2019/07/29)
- Short-term dynamics of dissolved major and trace elements in Lake Kiba-gata(conference：Joint Usage/Joint Research Symposium on Integrated Environmental Studies)(2019/12/17)
- Discharge behavior of suspended solids in the kumaki river based on atmospheric radionuclides.(conference：The 16th East Eurasia International Workshop Present Earth Surface Processes and Long-term Environmental Changes in East Eurasia)(2019/09/17)
- Importance of global research network on atmosphere-marine linkage studies from north to south transect.(conference：Joint Usage/Joint Research Symposium on Integrated Environmental Studies)(2019/12/18)
- Sources and pathways of polycyclic aromatic hydrocarbons transported to West Nanao Bay, Noto peninsula, Japan.(conference：Joint Usage/Joint Research Symposium on Integrated Environmental Studies)(2019/12/17)
- Vertical profiles of radiocesium in beach sand samples from Yotsukura, Fukushima Prefecture after the Fukushima Daiichi Nuclear Power Plant accident.(2019/09/25)
- Temporal variation of particulate organic matter concentration and carbon isotope composition (δ13C and Δ14C) in a small river with forest and paddy filed, Kumaki River in Japan(conference：The 16th East Eurasia International Workshop Present Earth Surface Processes and Long-term Environmental Changes in East Eurasia)(2019/09/17)
- Separation of polycyclic aromatic hydrocarbon associated with humic substances.(conference：Joint Usage/Joint Research Symposium on Integrated Environmental Studies)(2019/12/18)
- Transport processes of suspended solids in the Kumaki River inferred from atmospheric radionuclides(2019/05/29)
- Erosion and transport processes of earth surface materials in a reservoir-catchment system inferred from atmospheric radionuclides 7Be and 210Pb(2019/05/29)
- Spatial-temporal distribution of polycyclic aromatic hydrocarbons in seawater at West Nanao Bay, Noto Peninsula(2020/11/20)
- Dynamics of earth surface materials in a reservoir-catchment system inferred from 7Be and 210Pb.(conference：The 16th East Eurasia International Workshop Present Earth Surface Processes and Long-term Environmental Changes in East Eurasia)(2019/09/17)
- Overview of the project "Spatial distribution of trans-boundary pollution and related environmental phanomena in marginal sea area of western Pacific Ocean"(conference：Chozen International Symposium on Transboundary Pollution at North-South Transect at Marginal Sea in western Pacific Ocean)(2019/12/18)
- Study on transport of particulate organic matter in a small river with forest and paddy filed by using carbon isotopes (δ13C and Δ14C)(2019/05/29)
Others
- Transoprt of biogeochemical materials from the Amur River to the Sea of Okhotsk 3 67-71 2005
- Material transport from land to ocean -Complexation ability and character of humic substances- 3 141-145 2005
- Migration behavior of Fe in the Amur River basin S.Nagao, M.Terashima, H.Kodama, V.I.Kim, P.V.Shesterkin, A.N.Makhinov 4 37-48 2007
- Removal and fractionation characteristics of dissolved iron in estuarine mixing zone M.Terashima, S.Nagao 4 69-74 2007
- Geochemical behavior of dissolved iron in waters from the Amur River, Amur-Liman and Sakhalin Bay S.Nagao, O.Seki, M.Kawahigashi, V.I.Kim, P.V.Shesterkin, A.N.Makhinov 5 21-25 2008
- Stream flow distribution between the sub-channels within the middle-Amur Plain V.I.Kim, A.N.Makhinov, S.Nagao, O.Seki, M.Kawahigashi 5 31-35 2008
- 福島第一原子力発電所事故による群馬県赤城大沼の放射性セシウム汚染 角田欣一,相澤省一,森勝伸,齋藤陽一,阿部隼司,伊藤結衣子,鈴木究真,湯浅由美,渡辺峻,新井肇,田中英樹,久下敏宏,野原精一,薬袋佳孝,岡田往子,村上公一,今川峻,長尾誠也 環境科学会年会プログラム講演要旨集 2015 49 2015/09/07
- The effect of radiocesium-bearing microparticles on the solid-water distribution coefficient of radiocesium in rivers in Fukushima. Miura Hikaru,Kurihara Yuichi,Sakaguchi Aya,Nagao Seiya,Tanaka Kazuya,Higaki Shogo,Takahashi Yoshio Abstracts of Annual Meeting of the Geochemical Society of Japan 64 0 59 2017
- モンゴル西部の湖沼堆積物を用いた完新世後期の古環境変動解析 早川翼,勝田長貴,國分(齋藤,陽子,長谷部徳子,村上拓馬,宮田佳樹,長谷川精,長尾誠也,川上紳一,柏谷健二 日本地球惑星科学連合大会予稿集(Web) 2016 ROMBUNNO.MIS17‐P26 (WEB ONLY) 2016
- For elucidate of bottom stop phenomenon in 137Cs concentration in wakasagi hypomesus nipponensis of Lake Onuma on Mt. Akagi 渡辺峻,鈴木究真,新井肇,久下敏宏,角田欣一,森勝伸,野原精一,藥袋佳孝,岡田往子,長尾誠也 KEK Proceedings (Web) 1 2019-2 84 2019
- Subtropical Mode Water Identification and Vertical Mixing Quantification in the Western Pacific Boundary Current Area using Radiocesium Siteng Zhu,Jing Zhang,Takeshi Matsuno,Eisuke Tsutsumi,Shota Kambayashi,Katsumi Takayama,Mutsuo Inoue,Seiya Nagao,Ichiro Yasuda Abstracts of Annual Meeting of the Geochemical Society of Japan 68 33 2021
- Interannual variability of polycyclic aromatic hydrocarbons in the surface seawater near the Japanese archipelago Tanaka Saki,Matsunaka Tetsuya,Mundo Rodrigo,Inoue Mutsuo,Taniuchi Yukiko,Kuroda Hiroshi,Kumamoto Yuuichirou,takikawa Tetsutaroy,Morita Masaya,Ho Tung―Yuan,Nagao Seiya Abstracts of Annual Meeting of the Geochemical Society of Japan 68 39 2021
- Microplastics in marine sediments around Japan Nakano Kengo,Kawamura Kiichiro,Nomaki Hidetaka,Oguri Kazumasa,Inoue Mutsuo,Nagao Seiya Annual Meeting of the Geological Society of Japan 2019 343 2019
- Surface water circulations in the southwestern Sea of Japan: Implications from the Ra-228/Ra-226 ratio and Cs-134 concentration 花木祥太朗,井上睦夫,竹原亮成,諸角季生,城谷勇陛,滝川哲太郎,吉田真明,沖野晃,三木志津帆,長尾誠也 日本放射化学会討論会(Web) 64th 2020
- Study on ocean circulation in the Japan Sea using iodine-129 松中哲也,長尾誠也,井上睦夫,落合伸也,笹公和,森田貴己,三木志津帆,本多直人,工藤勲,滝川哲太郎,荒巻能史,本多真紀,末木啓介 日本放射化学会年会・放射化学討論会研究発表要旨集(Web) 2018-62nd 2018
- Study on sedimentation of radiocesium in mountain lake, Lake Akagi-Konuma, in Gunma Prefecture, Japan 長尾誠也,宮坂將平,渡辺峻,鈴木究真,落合伸也 日本放射化学会討論会(Web) 63rd 2019
- Analysis of submarine groundwater discharge using 222Rn in Nanao West Bay 藤田充司,長尾誠也,落合伸也,杉本亮,芳村毅,CHARETTE Matthew,HENDERSON Paul 日本放射化学会討論会(Web) 63rd 2019
- Shape Reconstruction of Mud Flocculate in the Sand and Mud Alternate Layer OYAMA Hiroyuki,OGINO Tomoya,SATO Toru,YASUDA Hisato,TEMMA Norio,NAGAO Jiro Transactions of the Visualization Society of Japan 38 6 17 2018
Arts and Fieldwork
Patent
Theme to the desired joint research
Grant-in-Aid for Scientific Research
○「陸域における難分解性有機炭素の蓄積と移行動態解明研究」(2003-)
○「集中豪雨により放出される懸濁粒子の特徴と沿岸域生態系への影響」(2006-)
○「河川から沿岸への栄養塩輸送記録により解読する陸起源栄養塩の海洋生物生産への影響変遷」(2004-)
○「縁辺海（ベーリング海、オホーツク海、日本海）の基礎生産を支える鉄の挙動とその起源」(2006-)
○「陸域から沿岸域への放射性セシウムの移行動態解析と生態系への影響評価」(2012-2014)
Competitive research funding,Contribution
Collaborative research,Consignment study
○Study on reactivity of organic matter with radionuclides(2007-2012)
○Measurements of charater of organic matter in-situ conditions(2007-2012)
Classes (Bachelors)
○Introduction to Region-studies(2021)
○Geochemistry A(2021)
○Geochemistry B(2021)
○Geochemistry A(2020)
○Geochemistry B(2020)
○Geochemistry B(2019)
○Geochemistry A(2019)
○Introduction of Chemistry B(2018)
○Geochemistry A(2018)
○Geochemistry B(2018)
○Introduction of Chemistry B(2017)
○Geochemistry(2017)
○Chemistry for Education(2016)
○Chemistry for Education(2016)
○Radiochemistry III(2016)
○Geochemistry(2016)
○Geochemistry(2012)
○Literature Survey in Chemistry(2011)
○Research Work in Chemistry(2011)
○Geochemistry(2010)
○Geochemistry 1(2010)
○Research Work in Chemistry(2010)
○Literature Survey in Chemistry(2010)
○Literature Survey in Chemistry(2009)
○Research Work in Chemistry(2009)
Classes (Graduate Schools)
○Nuclear Geochemistry(2021)
○Advanced Course in Biogeochemistry(2021)
○Seminar in Material Analysis(2021)
○Nuclear Geochemistry for Education(2021)
○Material Analysis Chemistry IV(2021)
○Nuclear Geochemistry for Education(2020)
○Advanced Course in Biogeochemistry(2020)
○Advanced Course in Biogeochemistry(2020)
○Advanced Course in Biogeochemistry(2020)
○Advanced Course in Biogeochemistry(2020)
○Seminar in Material Analysis(2020)
○Seminar in Material Analysis(2020)
○Nuclear Geochemistry(2020)
○Material Analysis Chemistry IV(2020)
○Advanced Course in Biogeochemistry(2019)
○Seminar in Material Analysis(2019)
○Nuclear Geochemistry(2019)
○Material Analysis Chemistry IV(2019)
○Advanced Course in Biogeochemistry(2019)
○Nuclear Geochemistry for Education(2019)
○Seminar in Material Analysis(2019)
○Advanced Course in Biogeochemistry(2019)
○Advanced Course in Biogeochemistry(2019)
○Nuclear Geochemistry(2018)
○Material Analysis Chemistry IV(2018)
○Seminar in Material Analysis(2018)
○Advanced Course in Biogeochemistry(2018)
○Seminar in Material Analysis(2017)
○Advanced Course in Biogeochemistry(2017)
○Advanced Course in Biogeochemistry(2017)
○Advanced Course in Biogeochemistry(2017)
○Advanced Course in Biogeochemistry(2017)
○Nuclear Geochemistry(2017)
○Seminar in Material Analysis(2017)
○Material Analysis Chemistry IV(2017)
○Advanced Course in Biogeochemistry(2016)
○Material Analysis Chemistry IV(2016)
○Seminar in Material Analysis(2016)
○Seminar in Material Analysis(2016)
○Nuclear Geochemistry(2016)