Releasing of hexabromocyclododecanes from expanded polystyrenes in seawater -field and laboratory experiments SCIE SCOPUS

Cited 19 time in WEB OF SCIENCE Cited 20 time in Scopus
Title
Releasing of hexabromocyclododecanes from expanded polystyrenes in seawater -field and laboratory experiments
Author(s)
Rani, Manviri; Shim, Won Joon; Jang, Mi; Han, Gi Myung; Hong, Sang Hee
KIOST Author(s)
Shim, Won Joon(심원준)Jang, Mi(장미)Han, Gi Myung(한기명)Hong, Sang Hee(홍상희)
Publication Year
2017-10
Abstract
Expanded polystyrene (EPS) is a major component of marine debris globally. Recently, hazardous hexabromocyclododecanes (HBCDDs) were detected in EPS buoys used for aquaculture farming. Subsequently, enrichment of HBCDDs was found in nearby marine sediments and mussels growing on EPS buoys. It was suspected that EPS buoys and their debris might be sources of HBCDDs. To confirm this, the release of HBCDD5 from EPS spherules detached from a buoy to seawater was investigated under field (open sea surface and closed outdoor chambers with sun exposure and in the dark) and laboratory (particle-size) conditions. In all exposure groups, initial rapid leaching of HBCDDs was followed by slow desorption over time. Abundant release of HBCDD5 was observed from EPS spherules exposed to the open sea surface (natural) and on exposure to sunlight irradiation or in the dark in controlled saline water. Water leaching and UV-light/temperature along with possibly biodegradation were responsible for about 37% and 12% of HBCDDs flux, respectively. Crumbled EPS particles (<= 1 mm) in samples deployed on the sea surface for 6 months showed a high degree of weathering. This implies that surface erosion and further fragmentation of EPS via environmental weathering could enhance the leaching of HBCDDs from the surface of EPS. Overall, in the marine environment, HBCDDs could be released to a great extent from EPS products and their debris due to the cumulative effects of the movement of large volumes of water (dilution), biodegradation, UV-light/temperature, wave action (shaking), salinity and further fragmentation of EPS spherules. (C) 2017 Elsevier Ltd. All rights reserved.
ISSN
0045-6535
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1148
DOI
10.1016/j.chemosphere.2017.07.042
Bibliographic Citation
CHEMOSPHERE, v.185, pp.798 - 805, 2017
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
BROMINATED FLAME RETARDANTS; POLYBROMINATED DIPHENYL ETHERS; PLASTIC DEBRIS; MARINE DEBRIS; SOUTH-KOREA; HYDROXYLATED METABOLITES; LEACHING CHARACTERISTICS; SPATIAL-DISTRIBUTION; COASTAL WATERS; HEAVY-METALS
Keywords
Microplastic; Expanded polystyrene; Additive; HBCDDs; Leaching; Marine environment
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

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

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