2026 Shinji Tokonami: Environmental Sciences Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Environmental Sciences	41	7633	7333	151	148	426	7688

Overview

Shinji Tokonami is affiliated with Hirosaki University in Japan and has contributed extensively to research in health professions and environmental science. Their work primarily centers on radiological and ultrasound technology, global and planetary change, and nuclear medicine and imaging, with a strong focus on radioactivity and radon measurements.

The main topics addressed in Tokonami's publications include:

Radioactivity and Radon Measurements
Radioactive contamination and transfer
Radiation Dose and Imaging
Nuclear and radioactivity studies
Radiation Detection and Scintillator Technologies
Graphite, nuclear technology, radiation studies
Radiation Shielding Materials Analysis

Frequent co-authors collaborating with Tokonami are:

Masahiro Hosoda
Chutima Kranrod
Yasutaka Omori
Naofumi Akata
Yuki Tamakuma

Tokonami's research has been published in multiple venues, showing a concentration in journals that specialize in radiation and environmental health, including:

Radiation Protection Dosimetry
International Journal of Environmental Research and Public Health
Scientific Reports
Atmosphere
Journal of Radioanalytical and Nuclear Chemistry

Representative recent papers authored or co-authored by Tokonami include:

Characteristics of Thoron (220Rn) and Its Progeny in the Indoor Environment, 2020, International Journal of Environmental Research and Public Health
A unique high natural background radiation area - Dose assessment and perspectives, 2020, The Science of The Total Environment
Comprehensive exposure assessments from the viewpoint of health in a unique high natural background radiation area, Mamuju, Indonesia, 2021, Scientific Reports
The Importance of Direct Progeny Measurements for Correct Estimation of Effective Dose Due to Radon and Thoron, 2020, Frontiers in Public Health
Natural Radioactivity of Laterite and Volcanic Rock Sample for Radioactive Mineral Exploration in Mamuju, Indonesia, 2020, Geosciences

Overall, Tokonami's body of work demonstrates a sustained engagement with the measurement, assessment, and implications of natural and artificial radioactivity in environmental and health contexts. The research integrates multidisciplinary approaches within radiological sciences and environmental health, contributing data and insights pertinent to radiation dose assessment and contamination transfer.

Best Publications

Up-to-date radon-thoron discriminative detector for a large scale survey

Shinji Tokonami;Hiroyuki Takahashi;Yosuke Kobayashi;Weihai Zhuo

213
Citations
Thyroid doses for evacuees from the Fukushima nuclear accident

Shinji Tokonami;Masahiro Hosoda;Suminori Akiba;Atsuyuki Sorimachi

197
Citations
222Rn concentrations of water in the Balaton Highland and in the southern part of Hungary, and the assessment of the resulting dose

Károly Somlai;Shinji Tokonami;Tetsuo Ishikawa;Péter Vancsura

170
Citations
Why is 220Rn (thoron) measurement important

S. Tokonami

146
Citations
Dose estimation derived from the exposure to radon, thoron and their progeny in the indoor environment.

R. C. Ramola;Mukesh Prasad;Tushar Kandari;Preeti Pant

132
Citations
Cancer and non-cancer mortality among Inhabitants in the high background radiation area of Yangjiang, China (1979-1998).

Zufan Tao;Suminori Akiba;Yongru Zha;Quanfu Sun

129
Citations
Strontium-90 activity concentration in soil samples from the exclusion zone of the Fukushima daiichi nuclear power plant.

Sarata Kumar Sahoo;Norbert Kavasi;Atsuyuki Sorimachi;Hideki Arae

126
Citations
Assessment of the natural radioactivity using two techniques for the measurement of radionuclide concentration in building materials used in Japan

Nabil M. Hassan;Nabil M. Hassan;Tetsuo Ishikawa;Masahiro Hosoda;Atsuyuki Sorimachi

122
Citations
A simple passive monitor for integrating measurements of indoor thoron concentrations

Weihai Zhuo;Shinji Tokonami;Hidenori Yonehara;Yuji Yamada

121
Citations
Radon and thoron exposures for cave residents in Shanxi and Shaanxi provinces.

Shinji Tokonami;Quanfu Sun;Suminori Akiba;Weihai Zhuo

120
Citations
Measurement of nationwide indoor Rn concentration in Japan

Tetsuya Sanada;Kenzo Fujimoto;Keiji Miyano;Masahiro Doi

117
Citations
Radon Migration Process and Its Influence Factors; Review

Nabil M. Hassan;Nabil M. Hassan;Masahiro Hosoda;Tetsuo Ishikawa;Atsuyuki Sorimachi

114
Citations
The time variation of dose rate artificially increased by the Fukushima nuclear crisis

Masahiro Hosoda;Shinji Tokonami;Atsuyuki Sorimachi;Satoru Monzen

114
Citations
Anomalous radon emanation linked to preseismic electromagnetic phenomena

Y. Omori;Y. Yasuoka;H. Nagahama;Y. Kawada;Y. Kawada

112
Citations
Evidence of precursor phenomena in the Kobe earthquake obtained from atmospheric radon concentration

Yumi Yasuoka;George Igarashi;Testuo Ishikawa;Shinji Tokonami

101
Citations
Contribution from thoron on the response of passive radon detectors.

Shinji Tokonami;Mingli Yang;Tetsuya Sanada

92
Citations
Simple, discriminative measurement technique for radon and thoron concentrations with a single scintillation cell

Shinji Tokonami;Mingli Yang;Hidenori Yonehara;Yuji Yamada

87
Citations
Radon–Thoron Discriminative Measurements in Gansu Province, China, and Their Implication for Dose Estimates

Yuji Yamada;Quanfu Sun;Shinji Tokonami;Suminori Akiba

86
Citations
Cancer and non-cancer health risks from carcinogenic heavy metal exposures in underground water from Kilimambogo, Kenya

Catherine Nyambura;Nadir Omar Hashim;Margaret Wairimu Chege;Shinji Tokonami

79
Citations
Radon and thoron parallel measurements in Hungary

N. Kávási;Cs. Németh;T. Kovács;S. Tokonami

77
Citations
Preliminary results of simultaneous radon and thoron tests in Ottawa.

Jing Chen;Shinji Tokonami;Atsuyuki Sorimachi;Hiroyuki Takahashi

73
Citations

Frequent Co-Authors

Shigeo Uchida National Institutes for Quantum and Radiological Science and Technology

Peter Bossew Federal Office for Radiation Protection

Yasuhito Igarashi Kyoto University

Mizuo Kajino Japan Meteorological Agency

Jun Kataoka Waseda University

Renjian Zhang Chinese Academy of Sciences

Hiroshi Sasaki Jikei University School of Medicine

Kei Satoh Hirosaki University

Tetsuya Mizoue Kyushu University

External Links

Personal website of Shinji Tokonami

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