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Species-specific accumulation of halogenated flame retardants in eggs of terrestrial birds from an ecological station in the Pearl River Delta, South China.

Abstract
Little information is available on the bioaccumulation of halogenated flame retardants (HFRs) in terrestrial ecosystem. Eggs of light-vented bulbul, yellow-bellied prinia, plain prinia, and dark green white-eye were collected from an ecological station in the Pearl River Delta, South China to investigate the occurrence of polybrominated diphenyl ethers (PBDEs) and several alternative HFRs, including decabromodiphenyl ethane (DBDPE), dechlorane plus (DP), hexabromobenzene (HBB), pentabromoethylbenzene (PBEB), 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE), pentabromotoluene (PBT), and 2,3,5,6-tetrabromo-p-xylene (pTBX). Concentrations of PBDEs, DBDPE, DP, HBB, PBEB, BTBPE, PBT, and pTBX ranged from 53-423, 6.1-609, 4.6-268, not detected (nd)-10, nd-1.4, nd-1.7, nd-7.5, and nd-3.2 ng g(-1) lw, respectively. Light-vented bulbul exhibited significantly lower levels of PBDEs, DBDPE, DP, and HBB than other three bird species due to its phytophagy and the other three bird species' insectivores. PBDEs were the predominant HFRs in bird eggs, followed by DBDPE and DP. Significant negative relationship between the fraction of anti-DP and DP concentrations was observed in bird eggs, suggesting that DP levels play an important role in determining the isomeric composition. Anti-Cl11-DP, the dechlorinated products of DP, was found in bird eggs with concentrations ranging from nd to 0.86 ng g(-1) lw and its source is worth further research.
AuthorsYu-Xin Sun, Xiang-Rong Xu, Qing Hao, Xiao-Jun Luo, Wei Ruan, Zai-Wang Zhang, Qiang Zhang, Fa-Sheng Zou, Bi-Xian Mai
JournalChemosphere (Chemosphere) Vol. 95 Pg. 442-7 (Jan 2014) ISSN: 1879-1298 [Electronic] England
PMID24206837 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
CopyrightCopyright © 2013 Elsevier Ltd. All rights reserved.
Chemical References
  • Environmental Pollutants
  • Flame Retardants
  • Halogenated Diphenyl Ethers
Topics
  • Animals
  • Birds
  • China
  • Environmental Monitoring
  • Environmental Pollutants (analysis, metabolism)
  • Flame Retardants (analysis, metabolism)
  • Halogenated Diphenyl Ethers (analysis, metabolism)
  • Ovum (chemistry, metabolism)
  • Rivers

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