Transfer of Gaseous Iodine to Tradescantia

概要

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Transfer rates of gaseous elemental iodine and methyliodide from atmosphere to Trades-can tia were investigated in relation to supposed genetic mutation due to radioactive iodine released from nuclear facilities. The estimated transfer rate of elemental iodine to the young buds of Tradescantia, which was given as the ratio of iodine uptake rate per unit weight of the plant to the concentration of the element in the air, was approximately 7 x 10^<-2> cm^3/g. sec, about 30 to 40 times higher than that of methyliodide. The contribution of direct deposition of elemental iodine was suggested to be significant, although methyliodide was mainly absorbed by respiration through stomata of the plant. Radioactive gaseous iodine (131) released from nuclear facilities is one of the most important radionuclides in an environmental radioactive pollution. Iodine is accumulated in the thyroid glands of animals and human beings.
日本放射線影響学会の論文