ITAI, Takaaki

Associate Professor
Geosphere and Biosphere Science Group

Office: Science building No. 1-541
TEL: +81-3-5841-4553
FAX: --

Research Field

Environmental Geochemistry, Ecological Geochemistry, Limno- chemistry

Current Research

My major interest is geochemical cycling of toxic metals/metalloids in the environment. The following topics are past/ongoing projects. (i) Biogeochemical cycle of mercury in marine ecosystem using its stable isotope ratios, (ii) Factors controlling mineral/water partitioning of arsenic, (iii) Oxygen consumption and trace element mobilization around sediment water interface, (iv) Systematic understanding of trace element distribution to the various aquatic wild lifes, (v) Experimental and theoretical approaches for the stable isotope fractionation of heavy metals.

Representative Publications

1. 2. Médieu, A., Point, D., Itai, T., Angot, H., Buchanan, P.J., Allain, V., Fuller, L., Griffiths, S., Gillikin, D.P., Sonke, J.E., Heimbürger, L.E., Desgranges, M.M., Menkes, C.E., Madigan, D.J., Brosset, P., Gauthier, O., Tagliabue, A., Bopp, L., Verheyden, A., Lorrain, A. Evidence that Pacific tuna mercury levels are driven by marine methylmercury production and anthropogenic inputs. Proceedings of the National Academy of Sciences of the USA, 119. 2. e2113032119.
2. Itai, T., Hayase, D., Hyobu, Y., Hirata S., Kumagai, M., Tanabe, S., 2012. Hypoxia-induced exposure of the isaza fish to manganese and arsenic in the bottom of Lake Biwa, Japan - Experimental and geochemical verification. Environmental Science & Technology, 46, 5789-5797.
3. Itai, T., Takahashi, Y., Seddique, A. A., Maruoka, T., Mitamura, M., 2010. Variations in the redox state of As and Fe measured by X-ray absorption spectroscopy in aquifers of Bangladesh and their effect on As adsorption. Applied Geochemistry, 1. 34-47.