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Survey of Microplastic Abundance in Mangrove Waters of Ishigaki Island
Original title: 石垣島マングローブ水域におけるマイクロプラスチック現存量調査
Summary
This study mapped the spatial distribution of microplastics in surface sediments from 27 sites in the coastal area of Ishigaki Island, Japan, including the Fukido mangrove water area. Higher microplastic volumes were found in the eastern coastal area connected to coral reefs, with ethylene propylene copolymers, polyethylene, polypropylene, and polyurethane identified as the main polymer types.
Microplastics (MP) that contain harmful substances such as POPs have a significant impact on sea creatures and the environment.To understand the spatial distribution of microplastics in the coastal area of Ishigaki Island, 27 samples of surface sediments were collected and analyzed.Fifteen observation points were set in the Fukido mangrove water area and MP in the mangrove sediments were extracted.As a result, a relatively large volume of MP were found in the eastern coastal area which connects to the coral reef.Microplastics were also found in the Fukido mangrove forest and the components were ethylene propylene copolymers , polyethylene, polypropylene and polyurethane.