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Yang, B.*; 恩田 裕一*; 脇山 義史*; 吉村 和也; 関本 均*; Ha, Y.*
Environmental Pollution, 208(Part B), p.562 - 570, 2016/01
被引用回数：9 パーセンタイル：50.2(Environmental Sciences)In this study, we investigated the temporal changes of radiocesium in soil, irrigation water, and rice plant in two adjacent rice paddies, with and without surface-soil-removal practice, in Fukushima Prefecture for over three years (2012 to 2014). Our results showed that radiocesium migrated into 24-28 cm soil layers and that the concentration and inventory of radiocesium in paddy soils generally decreased. The newly added radiocesium to paddies through irrigation water contributed only the maximum values of 0.15% and 0.75% of the total amount present in normal and decontaminated paddies, respectively, throughout the study period. The change trend of radiocesium concentration in suspended sediment in irrigation water exponentially decreased. Radiocesium accumulation in rice plant also decreased with time in both paddies. However, the transfer factor of radiocesium for rice plant in the decontaminated paddy increased compared with normal paddy.
Hu, P.*; 尹 永根; 石川 覚*; 鈴井 伸郎; 河地 有木; 藤巻 秀; 井倉 将人*; Yuan, C.*; Huang, J.*; Li, Z.*; et al.
Environmental Science and Pollution Research, 20(9), p.6306 - 6316, 2013/09
被引用回数：29 パーセンタイル：26.07(Environmental Sciences), a species in the family Crassulaceae, has been reported to be a Cd hyperaccumulator exhibiting fast growth, large biomass, asexual reproduction and perennial habit and showing remarkable potential in the phytoextraction of Cd from polluted soils. The aims of this study are to investigate whether and how the nitrogen form (nitrate (NO
) versus ammonium (NH
)) influences cadmium (Cd) uptake and translocation and subsequent Cd phytoextraction by the 
. This is the first report of successful visualisation and quantification of Cd uptake and root-to-shoot translocation in intact plants of the hyperaccumulator species supplied with different forms of inorganic N using positron-emitting tracer imaging system (PETIS), a real-time imaging method.
Awual, M. R.; Hossain, M. A.*; Shenashen, M. A.*; 矢板 毅; 鈴木 伸一; 城 昭典*
Environmental Science and Pollution Research, 20(1), p.421 - 430, 2013/01
被引用回数：107 パーセンタイル：2.79(Environmental Sciences)The weak-base adsorbents clarified that these are selective to arsenic(V) over competing of chloride, nitrate and sulfate anions. The solution pH played an important role in arsenic(V) removal and higher pH can cause lower adsorption capacities. Low concentration level of arsenic(V) also removed by these adsorbents even at high flow rate. Adsorbed arsenic(V) on adsorbents was quantitatively eluted with 1 M HCl acid and regenerated into hydrochloride form simultaneously for next adsorption operation after rinsing with water.
坂東 昭次; ヤマネヨシヒロ*; ムラカミユキオ*
Nuclear Techniques in Environmental Pollution, p.169 - 181, 1970/00
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