Transformation of iodate in the presence of soil organic matter
To understand the fate of radioiodine in the terrestrial environment, it is important to elucidate the reaction pathways of iodine species in soil. Soil organic matter can act both as an electron donor and acceptor in the soil environment, providing binding sites for various iodine species. We investigated the transformation of iodate (IO<,3>) incubated in soils of varying amounts of organic matter by using X-ray absorption near-edge structure. In the presence of soil organic matter, IO<,3> was reduced to I<,2>, associated with the organic matter. Since I<,2> is highly reactive with organic matter, the association of I<,2> with soil organic matter appears to be an important sink of iodine in soils.
Iodine soil organic matter X-ray absorption near-edge structure (XANES)
N. Yamaguchi R. Takamatsu M. Nakano H. Tanida
Soil Environment Division, National Institute for Agro-Environmental Sciences,3-1-3, Kan-non-dai, Ts School of Veterinary Medicine and Animal Sciences, Kitasato University,35-1, Higashi-23, Towada,034- Research Institute of Soil Science & Technology, 1-6-5, Nishi-shinbashi, Minato, Tokyo,105-0003, Jap Japan Synchrotron Radiation Research Institute, SPring-8,1-1-1, Kouto, Mikazuki, Sayo, Hyogo 679-519
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
453-454
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）