Chemicals of concern in plastic marine debris: Hexabromocyclododecanes in expanded polystyrene products

Title
Chemicals of concern in plastic marine debris: Hexabromocyclododecanes in expanded polystyrene products
Author(s)
홍상희; 심원준; MANVIRI; 장미; Najat; 한기명; 송영경
KIOST Author(s)
Hong, Sang Hee(홍상희)Shim, Won Joon(심원준)Jang, Mi(장미)Han, Gi Myung(한기명)Song, Young Kyoung(송영경)
Publication Year
2014-10-23
Abstract
Plastic marine debris contains numerous organic chemicals such as adsorbed hydrophobic chemicals and additives.Adsorbed chemicals are adsorbed from surrounding water due to their high affinity towards hydrophobic surface ofplastic, and additives are added during manufacture in order to enhance the performance of plastics. However, ourunderstanding about what are the chemicals of high concern along with their ecological impact is very poor. Wehave detected large amounts of hexabromocyclododecane (HBCD) in expanded polystyrene (EPS) buoys strandedalong the coasts of South Korea. HBCD is currently the most widely used brominated flame retardants. Due to itspotential toxicity, environmental persistence, bioaccumulative tendencies and long-range transportability, HBCDhas been added to the list of global elimination compounds under the Stockholm Convention on Persistent OrganicPollutants in 2013. The concentration of HBCD in the outside layer was lower than that of inside the buoys, whichindicates leaching of HBCD from the surface of the buoys throughout their lifetime. HBCD was also measuredin small sized EPS spherules spreading over the coasts. Through laboratory and field experiment, it is observedthat HBCD can easily and quickly leach out from the surface of EPS buoy to surrounding water and enriched innearby environment and aquatic species. The occurrence of HBCD in EPS buoys and its fragments additives are added during manufacture in order to enhance the performance of plastics. However, ourunderstanding about what are the chemicals of high concern along with their ecological impact is very poor. Wehave detected large amounts of hexabromocyclododecane (HBCD) in expanded polystyrene (EPS) buoys strandedalong the coasts of South Korea. HBCD is currently the most widely used brominated flame retardants. Due to itspotential toxicity, environmental persistence, bioaccumulative tendencies and long-range transportability, HBCDhas been added to the list of global elimination compounds under the Stockholm Convention on Persistent OrganicPollutants in 2013. The concentration of HBCD in the outside layer was lower than that of inside the buoys, whichindicates leaching of HBCD from the surface of the buoys throughout their lifetime. HBCD was also measuredin small sized EPS spherules spreading over the coasts. Through laboratory and field experiment, it is observedthat HBCD can easily and quickly leach out from the surface of EPS buoy to surrounding water and enriched innearby environment and aquatic species. The occurrence of HBCD in EPS buoys and its fragments
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25929
Bibliographic Citation
PICES 2014 Annual Meeting, pp.91, 2014
Publisher
North Pacific Marine Science Organization
Type
Conference
Language
English
Publisher
North Pacific Marine Science Organization
Related Researcher
Research Interests

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

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