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dc.contributor.authorPower, Andrew
dc.contributor.authorWhite, Philip
dc.contributor.authorMcHugh, Brendan
dc.contributor.authorMcGovern, Evin
dc.contributor.authorMurphy, Sinéad
dc.contributor.authorBerrow, Simon
dc.contributor.authorSchlingermann, Moira
dc.contributor.authorGately, Cillian
dc.contributor.authorTannian, Marissa
dc.contributor.authorNewton, Stephen
dc.contributor.authorCrowley, Denis
dc.contributor.authorO'Hea, Linda
dc.contributor.authorBoyle, Brian
dc.contributor.authorO'Connor, Ian
dc.identifier.citationAndrew Power, Philip White, Brendan McHugh, Evin McGovern, Sinéad Murphy, Simon Berrow, Moira Schlingermann, Cillian Gately, Marissa Tannian, Stephen Newton, Denis Crowley, Linda O'Hea, Brian Boyle, Ian O'Connor, Legacy and emerging contaminants in common guillemot Uria aalge eggs in Ireland and Wales, Chemosphere, Volume 283, 2021, 131161, ISSN 0045-6535, (
dc.description.abstractGuillemot eggs from multiple Irish colonies and one Welsh colony were analysed for legacy pollutants such as polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and other organochlorine compounds (OCs), as well as metals. Stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) were measured in eggs to understand the influence of diet on contaminant levels detected. Wide-scope target and suspect screening techniques were used on a single guillemot egg, providing novel information on contaminants of emerging concern. Stable isotope ratio analysis showed that guillemots from Great Saltee Island and Lambay Island (Ireland's east coast) had a similar carbon source (δ13C) and fed at similar trophic levels (δ15N), pollutant levels were higher in eggs from Lambay Island near Dublin, Ireland's industrialised capital city. Guillemot eggs from Aughris Head (Atlantic west coast of Ireland), and Skomer Island (Wales) had differing isotopic niches to other colonies. Egg samples from Aughris Head had the lowest levels of pollutants in this study (with the exception of mercury) and amongst the lowest levels reported worldwide. In contrast, Skomer Island had the highest level of pollutants with higher concentrations of Σ16PCB, Σ6PBDE and HCB than Irish colonies, most likely a result of its proximity to historically industrial areas. Levels of PCBs, p,p’ –DDE and mercury in guillemot eggs have decreased over time according to this study, in concurrence with worldwide trends. Levels of pollutants in guillemot eggs, in this study, fall below existing thresholds for adverse effects in other species, with the exception of mercury.en_US
dc.publisherElsevier Ltden_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.subjectStable isotope ratio analysisen_US
dc.subjectEmerging contaminantsen_US
dc.subjectSeabird eggsen_US
dc.titleLegacy and emerging contaminants in common guillemot Uria aalge eggs in Ireland and Walesen_US
dc.contributor.affiliationMarine and Freshwater Research Centre, Galway-Mayo Institute of Technology, Galway, Irelanden_US
dc.contributor.affiliationMarine Institute, Oranmore, Co. Galway, Irelanden_US
dc.contributor.affiliationBirdWatch Ireland, Kilcoole, Co. Wicklow, Irelanden_US
dc.subject.departmentMarine and Freshwater Research Centreen_US

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Attribution-NonCommercial-NoDerivatives 4.0 International
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