Abstract
Two Guillemot carcases were dissected, each providing 12 discrete tissue samples and 3 samples of partially digested food. One hundred and five PCBs from the 209 PCBs determined by GCxGC-ToFMS were detected. The relative proportions of individual PCBs did not vary greatly within tissue types, although the PCB profile from undigested food could be distinguished. Enantiomer fractions (EFs) were determined for CB-95, CB-136 and CB-149 by GC-HRqToFMS. EFs in the partially digested food were near racemic, with high levels of enrichment for E1 CB-95 in the kidneys and liver (EF of 0.80 and 0.84 respectively). This provides some of the clearest evidence to date that fractionation takes place in the organs where metabolic biotransformation and elimination of PCBs occurs. Our findings also confirm the ability of non-lethal sampling techniques, such as collection of small (<1 g) blood samples, to provide PCB signatures that are representative of an individual organism.
DOI
10.1016/j.marpolbul.2018.04.014
Publication Date
2018-06-01
Publication Title
Marine Pollution Bulletin
Volume
131
Publisher
Elsevier
ISSN
1879-3363
Embargo Period
2024-11-25
Additional Links
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000437060300020&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
Keywords
Polychlorinated biphenyl (PCBs), Guillemot (Uria aalge), North Atlantic, Tissue, Comprehensive two-dimensional gas, chromatography (GCxGC), Enantiomer fraction
First Page
174
Last Page
179
Recommended Citation
Megson, D., Brown, T., O'Sullivan, G., Robson, M., & et al. (2018) 'Changes to polychlorinated biphenyl (PCB) signatures and enantiomer fractions across different tissue types in Guillemots', Marine Pollution Bulletin, 131, pp. 174-179. Elsevier: Available at: https://doi.org/10.1016/j.marpolbul.2018.04.014
