Expanded polystyrene (EPS) debris as a source of toxic substance, hexabromocyclododecanes, in the marine environment

Title
Expanded polystyrene (EPS) debris as a source of toxic substance, hexabromocyclododecanes, in the marine environment
Author(s)
한기명; 홍상희; 장미; Manviri Rani; 심원준; 송영경
KIOST Author(s)
Han, Gi Myung(한기명)Hong, Sang Hee(홍상희)Jang, Mi(장미)Shim, Won Joon(심원준)Song, Young Kyoung(송영경)
Publication Year
2015-12-18
Abstract
Marine plastic pollution is a global issue caused by the massive production of plastic waste. Due to their formulation and/or processing, plastics contain additives and impurities which may leach out under conditions of use and accumulate in the environment. We found expanded polystyrene (EPS) debris collected from the Korean coasts contained toxic substances such as hexabromocyclododecanes (HBCDs). HBCDs are currently the most widely used additive brominated flame retardants (BFRs), and one of toxic substances in Stockholm Convention on POPs. Unexpectedly, the strong enrichment of HBCDs was found in coastal sediments nearby aqauculture farms using EPS buoys, where the level was higher than that in sediment nearby sewage treatment plant outfall. We confirmed the existance of HBCDs in acuaculture buoys by analyzing new buoys from local markes, and stranded EPS buoys and its small fragments from beaches. It was also found that the toxic substances transferred to mainre species inhabiting EPS marine debris. EPS marine debris were colleted from various countries including USA, Canada, Singapore, Peru, Japn, Bangladash, Thailand, Vietnam, Brunei, etc. Interestingly, the samples from develped countries contained higher amount of HBCDs than those from developing countries. EPS products can gradually fragment into millions of spherules with a diameter 1-5 mm that float on the water’s surface or become stranded on the shoreln the environment. We found expanded polystyrene (EPS) debris collected from the Korean coasts contained toxic substances such as hexabromocyclododecanes (HBCDs). HBCDs are currently the most widely used additive brominated flame retardants (BFRs), and one of toxic substances in Stockholm Convention on POPs. Unexpectedly, the strong enrichment of HBCDs was found in coastal sediments nearby aqauculture farms using EPS buoys, where the level was higher than that in sediment nearby sewage treatment plant outfall. We confirmed the existance of HBCDs in acuaculture buoys by analyzing new buoys from local markes, and stranded EPS buoys and its small fragments from beaches. It was also found that the toxic substances transferred to mainre species inhabiting EPS marine debris. EPS marine debris were colleted from various countries including USA, Canada, Singapore, Peru, Japn, Bangladash, Thailand, Vietnam, Brunei, etc. Interestingly, the samples from develped countries contained higher amount of HBCDs than those from developing countries. EPS products can gradually fragment into millions of spherules with a diameter 1-5 mm that float on the water’s surface or become stranded on the shorel
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/24973
Bibliographic Citation
Pacifichem 2015, pp.1, 2015
Publisher
Pacifichem
Type
Conference
Language
English
Publisher
Pacifichem
Related Researcher
Research Interests

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

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