研究内容
生活圏環境移行研究グループでは、生活環境中の放射性核種の移行や影響の研究を通じて、国民の方々への安全・安心のための科学的根拠の提供をミッションとしています。
研究の内容としては、海、山、森などの自然環境から環境試料を採取し、放射性核種の環境動態を解明する環境動態研究、野生動物を調査してその染色体異常から環境影響の健全性を評価する環境影響研究、放射性核種が土壌から農作物、水から魚介類などの移行経路を経由することで、どの程度人や人以外の生物に放射性核種が移行するかを数値化する環境パラメータ研究を行っています。
生活圏における主な核種移行プロセス
List of Papers
- Yang, B., Zheng, J.*, Yang, G., Qin, N., Tagami, K., Uchida, S. Characterization of typical transuranic nuclides in a reference fallout material using SF-ICP-MS. Journal of Environmental Radioactivity 278: 107506; 2024. https://doi.org/10.1016/j.jenvrad.2024.107506
- Tagami, K., Uchida, S. Fundamental study on measurement of soil pH and electrical conductivity in batch tests for the determination of soil-soil solution distribution coefficient. Nuclear Engineering and Technology 57: 103269; 2025. https://doi.org/10.1016/j.net.2024.10.031
- Ishii N., Furota T., Tagami K., Murakami M., Ohte N. Factors of slow decline in the activity concentration of 137Cs in eutrophic lake water. ACS ES&T Water 4: 1274; 2024. https://doi.org/10.1021/acsestwater.3c00338
- Zheng J., Tagami K., Uchida S., Shibutani S., Ishida K., Hamamoto T. Assessment of soil-soil solution distribution coefficients of global fallout 237Np and 239Pu in Japanese upland soils. Journal of Environmental Radioactivity 266-267: 107241; 2023. https://doi.org/10.1016/j.jenvrad.2023.107241
- Tagami K., Uchida S., Ishii N., Zheng J. Enhancement of mass interception coefficient data of radiostrontium by leafy crops using global fallout 90Sr and naturally occurring 7Be. Journal of Agricultural and Food Chemistry 70: 15244-15254; 2023. https://doi.org/10.1021/acs.jafc.2c05705
- Zheng J., Tagami K., Uchida S., Shibutani S., Ishida K., Hamamoto T. Soil-soil solution distribution coefficients of global fallout 239Pu and 237Np in Japanese paddy soils. Chemosphere 291: 132775; 2022. https://doi.org/10.1016/j.chemosphere.2021.132775
- Ishii N., Furota T., Kagami M., Tagami K., Uchida S. Inequality in the distribution of 137Cs contamination within freshwater fish bodies and its affecting factors. Scientific Reports 11: 5769; 2021. https://doi.org/10.1038/s41598-021-85291-6
- Tagami K., Fukaya, Y., Hirayama, M., Uchida, S. Collation of strontium concentration ratios from water to aquatic biota species in freshwater and marine environments and factors affecting the ratios. Environmental Science and Technology 55: 1637-1649; 2021. https://doi.org/10.1021/acs.est.0c05710
- Tagami K., Tsukada H., Uchida S. Quantifying spatial distribution of 137Cs in reference site soil in Asia. CATENA 180: 341-345; 2019. https://doi.org/10.1016/j.catena.2019.05.009
- Zheng J., Cao L., Tagami K., Uchida S. Triple-quadrupole inductively coupled plasma-mass spectrometry with a high-efficiency sample introduction system for ultra-trace determination of 135Cs and 137Cs in environmental samples at femtogram levels. Analytical Chemistry 88: 8772; 2016. https://doi.org/10.1021/ acs.analchem.6b02150
過去のプレスリリース
- 森林内の放射性セシウム動態の全容解明にむけて~森林に関するデータを整備し、その全体像を国際原子力機関から公表~(2020年12月18日)https://www.qst.go.jp/site/press/46884.html