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KMID : 0385520140270060321
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Analytical Science & Technology
2014 Volume.27 No. 6 p.321 ~ p.332
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Distribution characteristics of hexabromocyclododecanes in crucian carp and sediment from the major rivers
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Lee Su-Min
Kim Seong-wook
Jeong Gi-Ho
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Abstract
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The accumulation levels of hexabromocyclododecanes (HBCDs) were measured in samples of muscle tissue from crucian carp (Carassius auratus) and also in samples of associated sediments. Samples were collected from 15 sites along the courses of four major rivers. Widespread contamination by HBCDs in this area was identified from the results of this investigation. HBCDs were found above the detection limit from all of the sampling sites. The ΣHBCDs (sum of α-, β-, and γ-HBCDs) levels ranged from 1.3 to 19 ng/g (lipid wt) in the crucian carp musscle tissue samples, and from 0.17 to 30 ng/g (dry wt) in the associated sediment samples. The predominance of α-diastereomer in the muscle tissue of the carp and γ-diastereomer in the sediments was identified, accounting for 88% and 60% of the ΣHBCDs, respectively. The ΣHBCDs levels in the muscle tissue samples of carp collected from the upstream sections of each river were much lower than those in the samples from carp in the downstream sections. In addition, the ΣHBCDs levels in carp tissue samples from an isolated site were much lower than those in carp collected from the sites along the major rivers. This suggests that HBCD contamination in the rivers is likely to be sourced from the environment adjacent to them.
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KEYWORD
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HBCD, hexabromocyclododecane, crucian carp, sediment, brominated flame retardant,
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