Combined Effects of UV Exposure Duration and Mechanical Abrasion on Microplastic Fragmentation by Polymer Type SCIE SCOPUS

DC Field Value Language Song, Young Kyoung - Hong, Sang Hee - Jang, Mi - Han, Gi Myung - Jung, Seung Won - Shim, Won Joon - 2020-04-16T10:40:13Z - 2020-04-16T10:40:13Z - 2020-01-28 - 2017-04-18 -
dc.identifier.issn 0013-936X -
dc.identifier.uri -
dc.description.abstract It is important to understand the fragmentation processes and mechanisms of plastic litter to predict microplastic production in the marine environment. In this study, accelerated weathering experiments were performed in the laboratory, with ultraviolet (UV) exposure for up to 12 months followed by mechanical abrasion (MA) with sand for 2 months. Fragmentation of low-density polyethylene (PE), polypropylene (PP), and expanded polystyrene (EPS) was evaluated under conditions that simulated a beach environment. PE and PP were minimally fragmented by MA without photooxidation by UV (8.7 +/- 2.5 and 10.7 +/- 0.7 particles/pellet, respectively). The rate of fragmentation by UV exposure duration increased more for PP than PE. A 12-month UV exposure and 2-month MA of PP and PE produced 6084 +/- 1061 and 20 +/- 8.3 partides/pellet, respectively. EPS pellets were susceptible to MA alone (4220 +/- 33 particles/pellet), while the combination of 6 months of DV exposure followed by 2 months of MA produced 12,152 +/- 3276 particles/pellet. The number of fragmented polymer particles produced by UV exposure and mechanical abrasion increased with decreasing size in all polymer types. The size-normalized abundance of the fragmented PE, PP, and EPS particles according to particle size after UV exposure and MA was predictable. Up to 76.5% of the initial EPS volume was unaccounted for in the final volume of pellet produced particle fragments, indicating that a large proportion of the particles had fragmented into undetectable submicron particles. -
dc.description.uri 1 -
dc.language English -
dc.publisher AMER CHEMICAL SOC -
dc.subject SOUTH-KOREA -
dc.subject DEGRADATION -
dc.subject POLYSTYRENE -
dc.subject ENVIRONMENT -
dc.subject PARTICLES -
dc.subject INGESTION -
dc.title Combined Effects of UV Exposure Duration and Mechanical Abrasion on Microplastic Fragmentation by Polymer Type -
dc.type Article -
dc.citation.endPage 4376 -
dc.citation.startPage 4368 -
dc.citation.volume 51 -
dc.citation.number 8 -
dc.identifier.bibliographicCitation ENVIRONMENTAL SCIENCE & TECHNOLOGY, v.51, no.8, pp.4368 - 4376 -
dc.identifier.doi 10.1021/acs.est.6b06155 -
dc.identifier.scopusid 2-s2.0-85020027753 -
dc.identifier.wosid 000399859700026 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.subject.keywordPlus PLASTIC MARINE DEBRIS -
dc.subject.keywordPlus SEA-SURFACE MICROLAYER -
dc.subject.keywordPlus SOUTH-KOREA -
dc.subject.keywordPlus DEGRADATION -
dc.subject.keywordPlus POLYSTYRENE -
dc.subject.keywordPlus ENVIRONMENT -
dc.subject.keywordPlus PARTICLES -
dc.subject.keywordPlus INGESTION -
dc.subject.keywordPlus QUANTIFICATION -
dc.subject.keywordPlus PHOTOOXIDATION -
dc.relation.journalWebOfScienceCategory Engineering, Environmental -
dc.relation.journalWebOfScienceCategory Environmental Sciences -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Engineering -
dc.relation.journalResearchArea Environmental Sciences & Ecology -
Appears in Collections:
South Sea Research Institute > Library of Marine Samples > 1. Journal Articles
South Sea Research Institute > Risk Assessment Research Center > 1. Journal Articles
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