Prevalence of small high-density microplastics in the continental shelf and deep sea waters of East Asia SCIE SCOPUS

DC Field Value Language
dc.contributor.author Eo, Soeun -
dc.contributor.author Hong, Sang Hee -
dc.contributor.author Song, Young Kyoung -
dc.contributor.author Han, Gi Myung -
dc.contributor.author Seo, Seong Bong -
dc.contributor.author Shim, Won Joon -
dc.date.accessioned 2022-01-19T10:37:11Z -
dc.date.available 2022-01-19T10:37:11Z -
dc.date.created 2021-07-14 -
dc.date.issued 2021-07 -
dc.identifier.issn 0043-1354 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/42188 -
dc.description.abstract 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 mu m 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(3). 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(3)) polymers accounted for an average of 73% of total microplastics. As polymer density increased, the proportion of microplastics less than 100 mu m 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. (C) 2021 Elsevier Ltd. All rights reserved. -
dc.description.uri 1 -
dc.language English -
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD -
dc.title Prevalence of small high-density microplastics in the continental shelf and deep sea waters of East Asia -
dc.type Article -
dc.citation.title WATER RESEARCH -
dc.citation.volume 200 -
dc.contributor.alternativeName 어소은 -
dc.contributor.alternativeName 홍상희 -
dc.contributor.alternativeName 송영경 -
dc.contributor.alternativeName 한기명 -
dc.contributor.alternativeName 서성봉 -
dc.contributor.alternativeName 심원준 -
dc.identifier.bibliographicCitation WATER RESEARCH, v.200 -
dc.identifier.doi 10.1016/j.watres.2021.117238 -
dc.identifier.scopusid 2-s2.0-85109115504 -
dc.identifier.wosid 000664768300006 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.description.isOpenAccess N -
dc.subject.keywordPlus YELLOW SEA -
dc.subject.keywordPlus MARINE MICROPLASTICS -
dc.subject.keywordPlus SURFACE WATERS -
dc.subject.keywordPlus SINKING RATES -
dc.subject.keywordPlus MU-M -
dc.subject.keywordPlus ABUNDANCE -
dc.subject.keywordPlus CHINA -
dc.subject.keywordPlus PARTICLES -
dc.subject.keywordPlus TRANSPORT -
dc.subject.keywordPlus SEDIMENTS -
dc.subject.keywordAuthor Microplastics -
dc.subject.keywordAuthor Offshore water -
dc.subject.keywordAuthor Vertical distribution -
dc.subject.keywordAuthor Continental shelf -
dc.subject.keywordAuthor Deep sea -
dc.subject.keywordAuthor Marine aggregate -
dc.relation.journalWebOfScienceCategory Engineering, Environmental -
dc.relation.journalWebOfScienceCategory Environmental Sciences -
dc.relation.journalWebOfScienceCategory Water Resources -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Engineering -
dc.relation.journalResearchArea Environmental Sciences & Ecology -
dc.relation.journalResearchArea Water Resources -
Appears in Collections:
South Sea Research Institute > Risk Assessment Research Center > 1. Journal Articles
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