2018 Fiscal Year Final Research Report
Evaluation of seafood safety in Seto Inland Sea, where impacted by pesticide pollution from the land and use of antifouling agents
| Project/Area Number |
16KT0149
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 特設分野 |
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| Research Field |
Food Cycle Research
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| Research Institution | Hiroshima University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
竹田 一彦 広島大学, 生物圏科学研究科, 准教授 (00236465)
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| Research Collaborator |
YAMAZAKI Hideo
CHIDYA Russel
SUNDAY Michael
ADESINA Adeniyi
DERBALAH Aly
ABDELDAEM Sherif Mohamed Mohamed Ali
KAONGA Chikumbusko Chiziwa
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| Project Period (FY) |
2016-07-19 – 2019-03-31
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| Keywords | 農薬 / 瀬戸内海 / 船底防汚剤 / 歴史的変遷 / ダイアジノン |
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| Outline of Final Research Achievements |
Seawater, bottom sediment and biological samples were collected in Seto Inland Sea to elucidate pesticides pollution in various areas of Seto Inland Sea, and to clarify historical changes of the pollution during the last decades. Seafood safety and risk assessment to marine organisms were evaluted by the analysis of pesticides concentrations in biological samples such as fishes and plankton. The historical changes of pesticides pollution were elucidated using mass balance data such as pesticides concentrations, amount of pesticides from the use at land and shipbottom paitings and sinks to sediment and open ocean. Among eight pesticides examined, diazinon (organic phosphorus insecticide) showed highest concenctrations and possesses mild risks to marine organisms and negative effects on seafood safety.
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| Free Research Field |
環境化学
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| Academic Significance and Societal Importance of the Research Achievements |
瀬戸内海の農薬汚染の分布、海洋生物への濃縮、海底堆積物に移行した農薬の動態調査を実施することにより、船底防汚剤由来や陸地由来の農薬の汚染の歴史や今後の推移について予測したことに学術的意義がある。従来の食品安全性のみの評価研究では、農薬汚染の発生、進行、今後の見通しに関する情報が得られないので有効な対策を取ることができなかった。本研究により、陸、河、空、海にわたる物質循環を考慮しながら、瀬戸内海産水産食品の安全性を総合的に評価し、持続的かつ安全な食料生産を実現するための基礎資料を得たことに意義がある。有機リン系殺虫剤であるダイアジノンが、水産食品安全性や海洋生物に負のリスクを与えることを示した。
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