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Microplastic Pollution of Seabed in Front of Funabashi City
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This Japanese study investigated microplastic pollution in seafloor sediments off the coast of Funabashi City. Microplastics were detected in the seabed sediments, raising concerns about their persistence and potential to adsorb toxic chemicals in nearshore coastal environments.
近年，マイクロプラスチック(5mm未満のプラスチック，以下：MPs)の海洋汚染に世界中で注目が集まっている．海洋へ流出したMPsは毒性の強い化学物質を吸着しやすい特性や難溶解性が強いものが多いことから中長期的な問題として懸念されている．
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An integrated assessment of microplastic pollution in coastal surface water and sediment of Japan
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Researchers conducted a comprehensive survey of microplastic pollution across 14 coastal locations around Japan from Hokkaido to Okinawa, measuring concentrations of 288.7 g/km2 in surface water and 1,185 kg/km2 in sediment and characterizing polymer types, shapes, and size distributions.
An Integrated Assessmentof Microplastic Pollutionin Coastal Surface Water and Sediment of Japan
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Researchers conducted an integrated assessment of microplastic pollution in coastal surface water and sediment around Japan, providing a comprehensive dataset that clarifies the extent of contamination in Japanese coastal areas previously lacking systematic monitoring data.
Distribution and characterization of microplastics in marine sediments from coastal and offshore in South Korea
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Researchers conducted an intensive survey of microplastic levels and distribution in marine sediments from coastal areas, recognizing the seafloor as the ultimate repository for plastic particles. Microplastic concentrations in sediments were highest near urban and industrial coastlines, with fibers and fragments as the most common types.
Comprehensive Understanding of Microplastics Inflow Off the Coast of Funabashi
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Researchers conducted continuous monitoring of microplastic (MP) contamination in rivers, sewage, and coastal waters around Funabashi in Tokyo Bay, finding that MP number densities showed high temporal variability and a gradual decreasing trend, with upstream river sources driving contamination that diminished toward the sea as particles settled into bottom sediments, while sewage was also implicated as a contributor to marine MP pollution.
Distribution and characterization of microplastics in marine sediments from coastal and offshore in South Korea
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Researchers conducted an intensive survey of microplastic distribution and characterization in marine sediments from coastal areas, confirming the seafloor as a long-term sink for plastic pollution. Contamination was highest near urban coastlines, with fibers and fragments accumulating preferentially in low-energy depositional environments.
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