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Environ Pollut. 2013 Oct;181:7-13. doi: 10.1016/j.envpol.2013.05.050. Epub 2013 Jun 22.

Hexabromocyclododecane in alpine fish from the Tibetan Plateau, China.

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  • 1State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.

Abstract

Hexabromocyclododecanes (HBCDs) has just been listed into Stockholm Convention as a persistent organic pollutant recently. This paper studied the HBCDs in 79 wild fish from high mountain lakes and rivers of the Tibetan Plateau. The ∑HBCDs in fish muscles ranged from non detectable levels to 13.7 ng/g lipid weight (lw) (mean value of 2.12 ng/g lw) with a high detection frequency of 65.8%. α-HBCD dominated among the isomers and accounted for 78.2% of the total burden. Concentrations of ∑HBCDs in the fish were significantly correlated with the lipid content. A decreasing trend was observed between α-HBCD and trophic level. Positive correlation was also noted between the HBCD levels in fish from lakes and the annual precipitation, and this implied the long-range atmospheric transport of HBCDs to the Tibet Plateau. This was the first work to widely explore HBCDs contamination in the aquatic ecosystems of the Tibetan Plateau.

Copyright © 2013 Elsevier Ltd. All rights reserved.

KEYWORDS:

Fish; Hexabromocyclododecane; Lipid content; Tibetan Plateau; Trophic level

PMID:
23800423
[PubMed - indexed for MEDLINE]
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