Issue 10, 2006

Temporal trend studies on polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) in ringed seals from East Greenland

Abstract

The concentrations of polybrominated diphenyl ethers (PBDEs) 17, 28, 47, 49, 66, 85, 99, 100, 153, 154, and 183 were determined in ringed seal blubber from central East Greenland collected in 1986, 1994, 1999 and during the period 2001 to 2004. The trend of PBDEs was compared with the trends of polychlorinated biphenyls (PCBs) 28, 31, 52, 101, 105, 118, 138, 153, 156, and 180 during the same period. The levels of ΣPBDE in East Greenland ringed seals ranged from 21.8 ng g−1 lipid weight (lw) in 1986 to 39.3 ng g−1 lw in 2001 and are among the highest observed in ringed seal from the Arctic. The dominating congeners were BDE-47 (75.4%) and BDE-99 (9.7%). The concentrations of PBDEs and PCBs increased with the age of the seals, and therefore only young seals (≤4 years old) were included in the temporal trend analyses. No significant trend (p > 0.14) was observed in ΣPBDE or the congeners BDE 28, 47 and, 99 during the period while ΣPCB decreased significantly (p = 0.004) over the period from 1986 to 2004 with an estimated annual rate of 4.3%.

Graphical abstract: Temporal trend studies on polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) in ringed seals from East Greenland

Article information

Article type
Paper
Submitted
04 Jul 2006
Accepted
03 Aug 2006
First published
18 Aug 2006

J. Environ. Monit., 2006,8, 1000-1005

Temporal trend studies on polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) in ringed seals from East Greenland

F. Rigét, K. Vorkamp, R. Dietz and S. C. Rastogi, J. Environ. Monit., 2006, 8, 1000 DOI: 10.1039/B609522D

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