Japan Geoscience Union Meeting 2025

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[J] Oral

O (Public ) » Public

[O-03] Everything you need to know about marine plastics pollution

Sun. May 25, 2025 1:45 PM - 3:15 PM Exhibition Hall Special Setting (5) (Exhibition Hall 7&8, Makuhari Messe)

convener:Hitoshi Nakai(Kobuchisawa Research Institute for Nature and Education), Atsuhiko Isobe(Kyushu University, Research Institute for Applied Mechanics), Shinichiro Kako(Graduate School of Science and Engineering, Kagoshima University), Hirofumi Hinata(Ehime University), Chairperson:Hirofumi Hinata(Ehime University), Atsuhiko Isobe(Kyushu University, Research Institute for Applied Mechanics), Shinichiro Kako(Graduate School of Science and Engineering, Kagoshima University)

1:45 PM - 2:10 PM

[O03-01] Ocean Plastic Pollution, its current status and future view

★Invited Papers

*Atsuhiko Isobe1 (1.Kyushu University, Research Institute for Applied Mechanics)

Keywords:ocean plastics, microplastics

Plastic litter from everyday life, passing through rivers to the sea, accounts for 80% of the marine plastic litter that drifts or washes ashore in the world's oceans. As it repeatedly washes ashore and drifts out to sea, it is degraded and is gradually fragmented to microplastics. These microplastics are easily ingested by micro-organisms such as zooplankton and other microorganisms to large marine organisms, raising concerns about their impact on marine ecosystems. This presentation will introduce the current state of marine plastic pollution based on the Atlas of Ocean Microplastics (AOMI [blue ocean] database), a database provided by Japan that archives the amount of floating microplastics in the world's oceans. The presentation will also present the latest research results on the fate and pathways of ocean plastics using a numerical model approach.