| Project/Area Number |
26550047
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental impact assessment
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
Hashimoto Yohey 東京農工大学, (連合)農学研究科(研究院), 准教授 (80436899)
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| Co-Investigator(Kenkyū-buntansha) |
光延 聖 愛媛大学, 農学部, 准教授 (70537951)
豊田 剛己 東京農工大学, (連合)農学研究科(研究院), 教授 (30262893)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | タングステン / 吸着 / 土壌汚染 / 吸着等温線 / 環境基準 |
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| Outline of Final Research Achievements |
The use of W products has been increasing as an alternative to Pb. The wide distribution of W products will be attributed to the release of W in the environment that could be deposited eventually in the soils. However, the environmental fate of W and interactions with soil clay minerals have little been investigated. Our study found that the release of W from fishing sinkers and shot bullets were observed in different solution pH. The release of Ni was also found in some W products. The adsorption of W on soil clay minerals generally follows the increasing order of montmorillonite < birnessite < goethite = ferrihydrite.
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