Leaching characteristics of Hexabromocyclododecane from expanded polystyrene buoy fragments in marine water

Title
Leaching characteristics of Hexabromocyclododecane from expanded polystyrene buoy fragments in marine water
Author(s)
MANVIRI; 심원준; 장미; 한기명; 송영경; 홍상희
KIOST Author(s)
Shim, Won Joon(심원준)Jang, Mi(장미)Han, Gi Myung(한기명)Song, Young Kyoung(송영경)Hong, Sang Hee(홍상희)
Publication Year
2014-10-23
Abstract
Polystyrene (PS) is a very important plastic material for building insulation. To prevent it’s burning, HBCD(globally eliminated in May 2013) is frequently added as flame retardant. Expanded polystyrene buoys (EPS) areextensively used as floating device (2 million buoy/year) in aquaculture farming of oyster and mussel in Koreaand end up in the environment as marine debris. Due to irregular addition of HBCD in EPS buoy (~70-85 μg/gof EPS), it may be considered as a cause of HBCD contamination through leaching by sea water. Therefore,leaching characteristics of HBCD from EPS buoy fragments in water under laboratory and field conditionswere clarified. First-order reaction reflecting fast-leaching initially followed by slow-desorption over time wasobserved. Gamma-HBCD was the most abundant isomer followed by αHBCD and βHBCD of the total HBCDconcentration (4.7-10.9 μg/L, ~20%) leached in deionized water at room temperature after 96h. Significantlyenhancement in leaching with increase in temperature was attributed to fact of solubility especially αHBCDindicated high α/γ ratio. Agitation effect was more or less on similar line but not statistically different because ofdesorption-cum-absorption of HBCD. Lower salinity was favoured for leaching of HBCD. Field studies followthe order: dark exposure
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25930
Bibliographic Citation
PICES 2014 Annual Meeting, pp.97, 2014
Publisher
NorthNorth Pacific Marine Science Organization
Type
Conference
Language
English
Publisher
NorthNorth Pacific Marine Science Organization
Related Researcher
Research Interests

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

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