Micro and nano-particles of expanded polystyrene exposed to sunlight

Title
Micro and nano-particles of expanded polystyrene exposed to sunlight
Author(s)
송영경; 심원준; 어소은; 홍상희
KIOST Author(s)
Song, Young Kyoung(송영경)Shim, Won Joon(심원준)Eo, Soeun(어소은)Hong, Sang Hee(홍상희)
Publication Year
2019-10-23
Abstract
Expanded polystyrene (EPS) was used to sunlight exposure because it is one of most common litter items and highly susceptible to UV as well as mechanical weathering. The EPS cube was placed in borosilicate petri-dish and covered with quartz chamber to transmit sunlight and naturally weathered on the roof of our laboratory located at Goeje Island, South Korea. The produced particles by sunlight exposure was confirmed by energy dispersive spectroscopy. Approximately 3-70 million micro sized particles and 20-900 million nano sized particles per square centimeter were produced after 3, 6, 7, 9 and 24-month exposure. The number of particles increased according to the exposure duration. The average size of fragmented particles was comparable by increasing exposure time. By the weight loss of EPS cube, the fragmentation rate was calculated.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/22227
Bibliographic Citation
The international water association, 2019
Publisher
The International Water Association
Type
Conference
Language
English
Publisher
The International Water Association
Related Researcher
Research Interests

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

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