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Original research — experimental, observational, or case-control study. Direct primary evidence.
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Prevalence of small high-density microplastics in the continental shelf and deep sea waters of East Asia
Water Research2021
112 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 50
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Won Joon Shim
Won Joon Shim
Young Kyoung Song,
Won Joon Shim
Young Kyoung Song,
Young Kyoung Song,
Won Joon Shim
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Won Joon Shim
Young Kyoung Song,
Seongbong Seo,
Sang Hee Hong,
Seongbong Seo,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Soeun Eo,
Soeun Eo,
Soeun Eo,
Soeun Eo,
Soeun Eo,
Soeun Eo,
Soeun Eo,
Young Kyoung Song,
Sang Hee Hong,
Young Kyoung Song,
Young Kyoung Song,
Sang Hee Hong,
Gi Myung Han,
Gi Myung Han,
Gi Myung Han,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Won Joon Shim
Young Kyoung Song,
Won Joon Shim
Won Joon Shim
Won Joon Shim
Young Kyoung Song,
Gi Myung Han,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Young Kyoung Song,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Soeun Eo,
Soeun Eo,
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Seongbong Seo,
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Soeun Eo,
Soeun Eo,
Won Joon Shim
Soeun Eo,
Young Kyoung Song,
Won Joon Shim
Soeun Eo,
Gi Myung Han,
Gi Myung Han,
Soeun Eo,
Won Joon Shim
Won Joon Shim
Soeun Eo,
Young Kyoung Song,
Young Kyoung Song,
Soeun Eo,
Soeun Eo,
Soeun Eo,
Gi Myung Han,
Young Kyoung Song,
Young Kyoung Song,
Sang Hee Hong,
Soeun Eo,
Young Kyoung Song,
Sang Hee Hong,
Soeun Eo,
Gi Myung Han,
Won Joon Shim
Soeun Eo,
Soeun Eo,
Sang Hee Hong,
Soeun Eo,
Won Joon Shim
Gi Myung Han,
Gi Myung Han,
Sang Hee Hong,
Won Joon Shim
Sang Hee Hong,
Sang Hee Hong,
Soeun Eo,
Gi Myung Han,
Young Kyoung Song,
Soeun Eo,
Gi Myung Han,
Young Kyoung Song,
Young Kyoung Song,
Sang Hee Hong,
Gi Myung Han,
Young Kyoung Song,
Won Joon Shim
Young Kyoung Song,
Sang Hee Hong,
Young Kyoung Song,
Soeun Eo,
Sang Hee Hong,
Young Kyoung Song,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Gi Myung Han,
Gi Myung Han,
Gi Myung Han,
Soeun Eo,
Gi Myung Han,
Gi Myung Han,
Gi Myung Han,
Gi Myung Han,
Won Joon Shim
Won Joon Shim
Won Joon Shim
Young Kyoung Song,
Young Kyoung Song,
Gi Myung Han,
Gi Myung Han,
Won Joon Shim
Gi Myung Han,
Gi Myung Han,
Young Kyoung Song,
Won Joon Shim
Won Joon Shim
Gi Myung Han,
Sang Hee Hong,
Gi Myung Han,
Gi Myung Han,
Sang Hee Hong,
Young Kyoung Song,
Won Joon Shim
Sang Hee Hong,
Young Kyoung Song,
Young Kyoung Song,
Sang Hee Hong,
Young Kyoung Song,
Sang Hee Hong,
Won Joon Shim
Gi Myung Han,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Seongbong Seo,
Sang Hee Hong,
Gi Myung Han,
Gi Myung Han,
Sang Hee Hong,
Gi Myung Han,
Sang Hee Hong,
Gi Myung Han,
Gi Myung Han,
Gi Myung Han,
Gi Myung Han,
Sang Hee Hong,
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Seongbong Seo,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Young Kyoung Song,
Won Joon Shim
Sang Hee Hong,
Sang Hee Hong,
Won Joon Shim
Won Joon Shim
Sang Hee Hong,
Won Joon Shim
Won Joon Shim
Sang Hee Hong,
Gi Myung Han,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Won Joon Shim
Won Joon Shim
Sang Hee Hong,
Sang Hee Hong,
Won Joon Shim
Sang Hee Hong,
Sang Hee Hong,
Won Joon Shim
Won Joon Shim
Won Joon Shim
Gi Myung Han,
Won Joon Shim
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Sang Hee Hong,
Gi Myung Han,
Gi Myung Han,
Won Joon Shim
Gi Myung Han,
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Won Joon Shim
Young Kyoung Song,
Young Kyoung Song,
Won Joon Shim
Summary
Researchers collected water samples at multiple depth layers across the continental shelf and deep sea of East Asia and found that small, high-density microplastics were more abundant in deeper waters, suggesting vertical sinking pathways concentrate certain particle types in the deep ocean.
Study Type
Environmental
Microplastics are widely distributed throughout aquatic environments. Information about the vertical distribution and fate of microplastics in seawater remains limited. To elucidate the vertical distribution of microplastics, three to six vertical water column layers were sampled based on the thermocline depth, from which the vertical distribution and characteristics of microplastics larger than 20 μm were investigated in continental shelf and deep-sea waters around South Korea. In addition, microplastics incorporated into marine aggregates (aggregated fraction) were investigated to determine the contribution of aggregates to vertical transport of microplastics. The abundance of microplastics was in the range of 15-9,400 particles/m. No consistent trend was observed in the overall vertical profiles. The size, shape and polymer compositions of microplastics at each station were generally comparable throughout the water column. Unexpectedly, high-density (HD; > 1.02 g/cm) polymers accounted for an average of 73% of total microplastics. As polymer density increased, the proportion of microplastics less than 100 μm in size increased. HD polymers also accounted for 68% of the aerosol samples collected together with water samples. Due to the relatively high proportion of HD polymers in far-offshore waters, high-density solution should be used to extract microplastics, even from surface seawaters. The aggregated fraction accounted for 0-28.6% (average, 3.4%) of total microplastics. Marine aggregates are considered an important mechanism of transport for microplastics less dense than seawater to the deep-water column, but they showed lower proportions than expected in continental shelf and deep-sea waters around South Korea.