| Project/Area Number |
16K12604
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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 |
Risk sciences of radiation and chemicals
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
Takada Hideshige 東京農工大学, (連合)農学研究科(研究院), 教授 (70187970)
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| Co-Investigator(Kenkyū-buntansha) |
水川 薫子 東京農工大学, (連合)農学研究科(研究院), 助教 (50636868)
井上 広滋 東京大学, 大気海洋研究所, 教授 (60323630)
遠藤 智司 大阪市立大学, 都市研究プラザ, 特任准教授(テニュアトラック) (30748934)
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| Research Collaborator |
KAKUMURA Azusa
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | マイクロプラスチック / 二枚貝 / PCBs / 添加剤 / 曝露 / 滞留時間 / 飼育実験 / モデル化 / イガイ / ムラサキイガイ / マイクロビーズ / 東京湾 / 消化管 / 蛍光ビーズ / 疎水性有機汚染物質 / 海洋汚染 / 海洋プラスチック / 有害化学物質 |
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| Outline of Final Research Achievements |
In mussels from Tokyo Bay, on average, 5 pieces of microplastics were detected in their digestive tract. Fragments were dominant over fibers. Polyethylene and ethylene-propylene co-polymers were dominant. MP with size range from 20 to 80 micrometer was majority. Incubation experiments indicate 4 days to 8 days of residence time of MP in the digestive tract. If concentrations of persistent organic pollutants (POPs) would reach to equilibrium, MP-mediated exposure of POPs would be negligible. On the other hand, concentrations of some chemicals such as additives with high hydrophobicity would be far beyond the equilibrium, MP-mediated exposure of the chemicals could be important.
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