Remarkable Findings Concerning PBDEs in the Terrestrial Top-Predator Red Fox (Vulpes vulpes)

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• 作者：Stefan Voorspoels ; Adrian Covaci ; Peter Lepom ; Sophie Escutenaire ; and Paul Schepens
• 刊名：Environmental Science & Technology
• 出版年：2006
• 出版时间：May 1, 2006
• 年：2006
• 卷：40
• 期：9
• 页码：2937 - 2943
• 全文大小：197K
• 年卷期：v.40,no.9(May 1, 2006)
• ISSN：1520-5851

文摘

In the present study, we have analyzed muscle, liver, andadipose tissue of 33 red foxes from Belgium for theircontent of polybrominated diphenyl ethers (PBDEs). Mediansums of seven tri- to hepta-BDEs (BDE 28, BDE 47, BDE99, BDE 100, BDE 153, BDE 154, and BDE 183) were 2.2, 2.4,and 3.4 ng/g lipid weight in adipose tissue, liver, andmuscle, respectively. These levels were lower than thosefound in various species of voles and mice, the mainprey species of the red fox. This is probably related tothe high capacity of the foxes to metabolize and eliminatelower brominated congeners. BDE 209 generally dominatedthe PBDE congener profiles in the red fox samples. In samplescontaining BDE 209, this congener contributed, on theaverage, approximately 70% to the total PBDE content. BDE209 was measured in concentrations as high as 760 ng/glipid weight in the liver, but the detection frequency was notmore than 40%. In animals with the highest BDE 209levels, this congener was detected in muscle, liver, aswell as in adipose tissue. Other abundant congeners wereBDE 153 and BDE 47, which prevail in other terrestrialspecies. The particular PBDE congener profile observedin the red fox resembles that seen in grizzly bears fromCanada, but differs from those previously reported forterrestrial avian species. Our data confirms unambiguouslythat BDE 209 does bioaccumulate in terrestrial toppredators, such as the red fox.