| Project/Area Number |
24658062
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Plant nutrition/Soil science
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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 静岡県立大学, 付置研究所, 助教 (70537951)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 銀 / 土壌汚染 / ナノマテリアル |
|---|
| Research Abstract |
Silver nanoparticles (AgNP) have been incorporated into various products such as sock and cloth. AgNP in the products can be washed out via laundry and bathing activities and accumulates eventually in sewage sludge. Environmental behaviors of silver and AgNP remain largely unknown, and investigation of silver compounds in soils is key to elucidating environmental fate and toxicity of silver. Our study found that i) solubility of silver compounds and AgNP are dependent on soil's redox potential, ii) Andic soils can retain silver more than lowland gley soils, and iii) AgNP remains persistent in oxic soil conditions.
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