Spatiotemporal distribution and annual load of microplastics in the Nakdong River, South Korea 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 Shim, Won Joon -
dc.date.accessioned 2020-04-16T07:40:06Z -
dc.date.available 2020-04-16T07:40:06Z -
dc.date.created 2020-02-04 -
dc.date.issued 2019-09 -
dc.identifier.issn 0043-1354 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/517 -
dc.description.abstract Although rivers represent an important pathway for the transport of microplastics to the oceans, research on riverine microplastics is limited compared to the marine environment. Hence, we investigated the spatiotemporal distribution of microplastics in the Nakdong River down to 20 mu m in size and characterized them using Fourier transform infrared spectroscopy in surface and mid waters and sediment. The mean (+/- standard deviation) abundance of microplastic in the Nakdong River was in the range of 293 +/- 83 (upstream, February 2017) to 4760 +/- 5242 (downstream, August 2017) particles/m(3) in water, and 1970 +/- 62 particles/kg in sediment. The abundance of microplastics was about three times higher in surface than mid waters in the downstream area. Polypropylene and polyester accounted for 41.8% and 23.1% of microplastics in the water, respectively, whereas about 50% in the sediment was composed of polypropylene and polyethylene. Microplastics smaller than 300 mu m in size accounted for 74% in the water and 81% in sediment, and the distribution peaked in the 50-150 mu m size range. Based on these results, we estimated the annual load of microplastics carried by the Nakdong River in 2017 to be 5.4-11 trillion by number and 53.3-118 tons by weight. The proportions of the total load transported through surface water and the water column were 8% and 92%, respectively. In addition, the microplastic load was concentrated in the wet season, which makes up 71% in number and 81% in weight. These results indicate that it is necessary to reflect seasonal variation and sample both in the surface water and water column to estimate microplastic transport. Without considering these factors, the annual load of microplastics may be overestimated or underestimated. (C) 2019 Elsevier Ltd. All rights reserved. -
dc.description.uri 1 -
dc.language English -
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD -
dc.title Spatiotemporal distribution and annual load of microplastics in the Nakdong River, South Korea -
dc.type Article -
dc.citation.endPage 237 -
dc.citation.startPage 228 -
dc.citation.title WATER RESEARCH -
dc.citation.volume 160 -
dc.contributor.alternativeName 어소은 -
dc.contributor.alternativeName 홍상희 -
dc.contributor.alternativeName 송영경 -
dc.contributor.alternativeName 한기명 -
dc.contributor.alternativeName 심원준 -
dc.identifier.bibliographicCitation WATER RESEARCH, v.160, pp.228 - 237 -
dc.identifier.doi 10.1016/j.watres.2019.05.053 -
dc.identifier.scopusid 2-s2.0-85067957963 -
dc.identifier.wosid 000474327700023 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.subject.keywordPlus PLASTIC DEBRIS -
dc.subject.keywordPlus PEARL RIVER -
dc.subject.keywordPlus SUSPENDED MICROPLASTICS -
dc.subject.keywordPlus 1ST OBSERVATIONS -
dc.subject.keywordPlus URBAN ESTUARIES -
dc.subject.keywordPlus SURFACE WATERS -
dc.subject.keywordPlus POLLUTION -
dc.subject.keywordPlus ABUNDANCE -
dc.subject.keywordPlus SEDIMENTS -
dc.subject.keywordPlus BAY -
dc.subject.keywordAuthor Microplastics -
dc.subject.keywordAuthor Freshwater -
dc.subject.keywordAuthor River -
dc.subject.keywordAuthor Sediment -
dc.subject.keywordAuthor Distribution -
dc.subject.keywordAuthor Annual load -
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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