Polybrominated diphenyl ethers (PBDEs) in feathers of colonial water-bird species from Pakistan
Malik, Riffat Naseem; Moeckel, Claudia; Jones, Kevin C.; Hughes, David. 2011 Polybrominated diphenyl ethers (PBDEs) in feathers of colonial water-bird species from Pakistan. Environmental Pollution, 159 (10). 3044-3050. 10.1016/j.envpol.2011.04.010Full text not available from this repository.
Feathers of two colonial water-birds species (Bubulcus ibis, Egretta garzetta) from four heronries in the Punjab province, Pakistan were analysed for 28 Polybrominated Diphenyl Ethers (PBDEs) congeners. Median concentrations of Sigma PBDEs were 2.41 and 1.91 ng/g in little and cattle egrets. PBDE-47, -100, -138, -153 were abundant and detected in >70% of feather samples in both species. Species-specific differences based on dietary preferences indicated higher concentration of PBDE-47, -66, -75, -100, -153, -154, and -183 in fish eating little egret. BDE-47 and -100 were more frequent in little egrets and BDE-99 was more dominant in cattle egret which feed on terrestrial habitat. Higher Sigma hexa- and hepta-BDEs congeners showed larger concentrations in feathers from heronries close to water bodies which receive urban and industrial effluents whereas lower-brominated congeners (BDE-47-BDE-100) dominated in rural/agricultural regions. Hazard quotients (HQs) indicated that measured Sigma PBDEs pose no risk to egret population. (C) 2011 Elsevier Ltd. All rights reserved.
|Programmes:||CEH Topics & Objectives 2009 onwards > Biogeochemistry > BGC Topic 1 - Monitoring and Interpretation of Biogeochemical and Climate Changes > BGC - 1.1 - Monitor concentrations, fluxes, physico-chemical forms of current and emerging pollutants ...|
|Additional Keywords:||aquatic birds, PBDEs, egrets, hazard quotients|
|NORA Subject Terms:||Ecology and Environment|
|Date made live:||27 Feb 2012 14:48|
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