Rapid Production of Micro- and Nanoplastics by Fragmentation of Expanded Polystyrene Exposed to Sunlight SCIE SCOPUS

Cited 3 time in WEB OF SCIENCE Cited 5 time in Scopus
Title
Rapid Production of Micro- and Nanoplastics by Fragmentation of Expanded Polystyrene Exposed to Sunlight
Author(s)
Song, Young Kyoung; Hong, Sang Hee; Eo, Soeun; Han, Gi Myung; Shim, Won Joon
KIOST Author(s)
Song, Young Kyoung(송영경)Hong, Sang Hee(홍상희)Eo, Soeun(어소은)Han, Gi Myung(한기명)Shim, Won Joon(심원준)
Publication Year
2020-09-15
Abstract
Expanded polystyrene (EPS) is a common plastic marine debris found in oceans worldwide. The unique "foamed" structure of EPS, which is composed of thin layers, is more vulnerable to fragmentation than bulk plastics. However, the production rate of micro- and nanoplastics by the fragmentation of EPS following sunlight exposure remains largely unknown. Here, we determined the fragmentation rate and weight loss of EPS in an outdoor weathering experiment that ran for 24 months. It took only 1 month for the weight of an EPS box to decline by 5% due to photodegradation, and approximately 6.7 x 10(7) micro- and nanoparticles/cm(2) could be produced at a latitude of 34 degrees N. These results indicate that macro EPS debris can continually produce a massive number of particles within a relatively short exposure duration. The findings provide useful information to inform policymakers how rapidly to remove "likely fragmented" plastic litter from the environment.
ISSN
0013-936X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/37590
DOI
10.1021/acs.est.0c02288
Bibliographic Citation
ENVIRONMENTAL SCIENCE & TECHNOLOGY, v.54, no.18, pp.11191 - 11200, 2020
Publisher
AMER CHEMICAL SOC
Subject
SURFACE WATERS; PLASTIC DEBRIS; MICROPLASTICS; DEGRADATION; IDENTIFICATION; PARTICLES; BEACHES
Type
Article
Language
English
Document Type
Article
Publisher
AMER CHEMICAL SOC
Related Researcher
Research Interests

Microplastic pollution,Persistent Organic Pollutants,Oil Pollution,미세플라스틱 오염,잔류성 유기오염물질,유류오염

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