Group Members
Full-time Employee：6
Special Researcher：1
Technical Staff：9
Research Assistants：7
Technical Trainees：4
Visitors under the Industry-Academia-Government Program：3
Group Total：30
Special Researcher：1
Technical Staff：9
Research Assistants：7
Technical Trainees：4
Visitors under the Industry-Academia-Government Program：3
Group Total：30
[As of July 20, 2026]
[Full-time Employee]
Tetsuo Yasutaka
- Position:
- Group Leader (
: t.yasutaka
aist.go.jp
)
- Areas of Expertise:
- Soil Contamination, Abandoned and Decommissioned Mines, Risk Assessment, Sustainability Assessment, Test Method Development and Standardization
- Current Research Topics:
- Environmental risk assessment, development and standardization of various testing methods, environmental restoration activities, environmental dynamics assessment, communication, and sustainability (environmental, social, and economic) assessment, focusing on abandoned mines, soil contamination, and environmental contamination resulting from the Fukushima Daiichi Nuclear Power Plant accident, among other topics
- Comment:
- I assumed the position of Group Leader in April 2020. I look forward to working with you all. [ Personal Website ]
Hanae Saishu
- Position:
- Senior Researcher ( :
saishu.h
aist.go.jp
) - Areas of Expertise:
- Geochemistry
- Current Research Topics:
- Elucidation of the mechanisms and reaction rates of silica mineral precipitation; elucidation of the role of geochemical reactions in geothermal regions and earthquake-prone areas
- Comments:
- I am interested in the correlation between geochemical reactions and geophysical phenomena. I am also
conducting research on geothermal energy at FREA.
Miu Nishikata
- Position:
- Researcher ( : m.nishikata aist.go.jp
)
- Field of Specialization:
- Geochemistry
- Current Research Topics:
- Standardization of performance evaluation tests for adsorbents used in adsorption layer methods; estimation of geothermal power generation potential in geothermal resource potential surveys
- Comment:
- I am still a novice, but I look forward to working with you.
Momo Takada
- Position:
- Senior Researcher ( :
momo.takada aist.go.jp
)
- Field of Expertise:
- Environmental Chemistry
- Current Research Topics:
- Assessment of environmental dynamics and sustainability in the terrestrial environment
- Comment:
- I joined the department in April 2021. I look forward to working with you.
TUM Sereyroith
- Position:
- Researcher : s.tum aist.go.jp
)
- Fields of Expertise:
- Geochemistry, Environmental Geology
- Current Research Topics:
- The study of passive treatment of acid mine drainage and environmental remediation of legacy mines
- Comment:
- I am interested in developing affordable and simple methods for the environmental remediation of legacy mines.
Wanhui Huang
- Position:
- Researcher ( : wanhui.huang
aist.go.jp
)
- Field of Expertise:
- Regional Environment, Sustainability Assessment
- Current Research Topics: Ecosystem service assessment, future land-use simulation, integrated assessment of sustainable land use Comment: I joined the institute in April 2026. I’m still getting used to things, but I’ll do my best to keep up.
[Special Researcher]
- Valderrama Grace
[Technical Staff]
- Yoriko Igarashi
- Hiroko Katayama
- Hiromi Kimitsuki
- Takuya Tabata
- Moeno Ninomiya
- Kazumi Fujii
- Shinko Fujii
- Tsukasa Fujita
[Research Assistant]
- Daiki Sasaki (University of Tsukuba, Graduate School, D3)
- Yuka Sayama (Hokkaido University, Joint Graduate School, Environmental Risk Assessment Laboratory, M1)
- Masaki Takeda (Hokkaido University, Joint Graduate School, Environmental Risk Assessment Laboratory, M2)
- Ryota Hoshida (Chiba University, Graduate School, D1)
- Masaki Ikenoue (Tohoku University, Graduate School, M1)
- Riho Yabuki (Tokyo University of Agriculture and Technology, Graduate School, M1)
- Kazuho Takashima (University of Tsukuba, Graduate School, M1)
[Technical Trainees Visiting the Lab]
- Angesom Gebretsadik Abraha (Hokkaido University, Joint Graduate School, D3)
- Kaiser Lucas (Kyoto University, M2)
- Haruki Yano (Hokkaido University, Joint Graduate School, Environmental Risk Assessment Laboratory, B4)
- Wataru Idehara (Kyoto University, Graduate School, D2)
[Visitors under the Industry-Academia-Government Collaboration Program]
- Shinobu Awaya (Toyoshima Law Office)
- Tomohiro Kato (Graduate School of Global Environmental Studies, Kyoto University)
- Michio Murakami (Specially Appointed Professor, Osaka University)
[Former Group Members (Reiwa 3 and Later)]
- Shunichiro Igari
- Masaya Suzuki
- Munetake Sasaki
- Kazuya Morimoto (Currently with the Geosphere Resource Chemistry Research Group)
- Yoko Miyoshi (currently with the Geosphere Resource Chemistry Research Group)
- Yuto Komura (currently with the Biogeoscience Research Group)
- Kohei Doyama (currently Assistant Professor at the University of Tsukuba)
- Akihiko Kurosawa (currently with the Geosphere Resource Chemistry Research Group)