Long term trends in PBDE concentrations in gannet (Morus bassanus) eggs from two UK colonies

Crosse, John D.; Shore, Richard F.; Jones, Kevin C.; Pereira, M. Gloria. 2012 Long term trends in PBDE concentrations in gannet (Morus bassanus) eggs from two UK colonies. Environmental Pollution, 161. 93-100. 10.1016/j.envpol.2011.10.003

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Abstract/Summary

We used the eggs of an avian sentinel, the Northern gannet (Morus bassanus), to determine long-term (1977–2007) trends in PBDE contamination in Western Atlantic (Ailsa Craig colony) and North Sea (Bass Rock colony) waters around the UK. BDEs 47, 49, 99, 100, 153, 154 were the most abundant and were found in all eggs. Individual congener and ΣPBDE concentrations in eggs from both colonies increased mainly from the late 1980s, peaked in 1994, and then rapidly declined so that concentrations in 2002 were similar to or lower than those in the 1970s and 1980s. The PBDE congener profile and temporal variation in PBDE concentrations suggests that the Penta-BDE technical formula was the main source of PBDE contamination. However, contributions of heavier BDE congeners to ΣPBDE concentrations have increased over time, suggesting other sources are becoming more important. PBDEs had no measurable effect on egg volume or eggshell index.

Item Type:	Article
Identification Number/DOI:	10.1016/j.envpol.2011.10.003
Programmes:	CEH Topics & Objectives 2009 onwards > Biogeochemistry
CEH Sections:	Shore
ISSN:	0269-7491
Additional Keywords:	polybrominated diphenyl ethers, penta-BDE, gannet, time trend, BDE35, reproduction
NORA Subject Terms:	Ecology and Environment Chemistry
Date made live:	14 Nov 2011 13:57
URI:	http://nora.nerc.ac.uk/id/eprint/15866

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