Microplastic emission characteristics of stormwater runoff in an urban area: Intra-event variability and influencing factors SCIE SCOPUS

DC Field Value Language
dc.contributor.author Cho, You Na -
dc.contributor.author Shim, Won Joon -
dc.contributor.author Ha, Sung Yong -
dc.contributor.author Han, Gi Myung -
dc.contributor.author Jang, Mi -
dc.contributor.author Hong, Sang Hee -
dc.date.accessioned 2023-01-16T00:30:07Z -
dc.date.available 2023-01-16T00:30:07Z -
dc.date.created 2023-01-16 -
dc.date.issued 2023-03 -
dc.identifier.issn 0048-9697 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/43863 -
dc.description.abstract Stormwater runoff is considered a major pathway for land-based microplastic transportation to aquatic environments. By applying time-weighted stormwater sampling at stormwater outlets from industrial and residential catchments, we investigated the emission characteristics and loads (number- and mass-based) of microplastics to aquatic environments through urban stormwater runoff during rainfall events. Microplastics were detected in stormwater runoff from industrial and residential areas in the concentration range of 68–568 n/L and 54–639 n/L, respectively. Polypropylene and polyethylene were found as major polymers accounting for around 60 % of total microplastics. The fragment was the dominant shape of microplastics, and the most common size class was 20–100 μm or 100–200 μm. The microplastic load emitted from industrial and residential areas were estimated to be 1.54–46.1 × 108 and 0.63–28.5 × 108 particles, respectively. The discharge characteristics of microplastics inter– and intra–event were affected by the land-use pattern and rainfall characteristics. The concentration of microplastics did not significantly differ between industrial and residential catchments, but the composition of polymer types reflected the land-use pattern. The microplastics in stormwater were more concentrated when the number of antecedent dry days (ADDs) was higher; the concentration of microplastics was generally peaked in the early stage of runoff and varied according to rainfall intensity during a rainfall event. The contamination level and load of microplastics were heavily affected by the total rainfall depth. Most microplastics were transported in the early stage of runoff (19–37 % of total runoff time), but the proportion of larger and heavier particles increased in the later period of runoff. The microplastic emission via stormwater runoff was significantly higher than that through the discharge of wastewater treatment plant effluent in the same area, implying that stormwater runoff is the dominant pathway for transporting microplastics to aquatic environments. © 2023 Elsevier B.V. -
dc.description.uri 1 -
dc.language English -
dc.publisher Elsevier BV -
dc.title Microplastic emission characteristics of stormwater runoff in an urban area: Intra-event variability and influencing factors -
dc.type Article -
dc.citation.title Science of the Total Environment -
dc.citation.volume 866 -
dc.contributor.alternativeName 조유나 -
dc.contributor.alternativeName 심원준 -
dc.contributor.alternativeName 하성용 -
dc.contributor.alternativeName 한기명 -
dc.contributor.alternativeName 장미 -
dc.contributor.alternativeName 홍상희 -
dc.identifier.bibliographicCitation Science of the Total Environment, v.866 -
dc.identifier.doi 10.1016/j.scitotenv.2022.161318 -
dc.identifier.scopusid 2-s2.0-85145775689 -
dc.identifier.wosid 000921473500001 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.description.isOpenAccess N -
dc.subject.keywordPlus BAY -
dc.subject.keywordPlus ACCUMULATION -
dc.subject.keywordPlus PARTICLES -
dc.subject.keywordAuthor Microplastic -
dc.subject.keywordAuthor Non-point source -
dc.subject.keywordAuthor Rainfall characteristics -
dc.subject.keywordAuthor Stormwater runoff -
dc.subject.keywordAuthor Urban land-use -
dc.relation.journalWebOfScienceCategory Environmental Sciences -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Environmental Sciences & Ecology -
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South Sea Research Institute > Risk Assessment Research Center > 1. Journal Articles
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