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  • Lisa Bjørnsdatter Helgason, Anuschka Polder, +5 authors Janneche Utne Skaare
  • Biology, Medicine
  • Environmental toxicology and chemistry
  • 2009
  • The present study assessed temporal trends (1983-2003) of polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecanes (HBCDs) in eggs of herring gulls (Larus argentatus), Atlantic puffinsContinue Reading
    Thyroid hormones are essential for normal growth and development and disruption of thyroid homeostasis can be critical to young developing individuals. The aim of the present study was to assessContinue Reading
  • Jonathan Verreault, Lisa Bjørnsdatter Helgason, Geir Wing Gabrielsen, Maria Dam, Birgit M Braune
  • Chemistry, Medicine
  • Environment international
  • 1 February 2013
  • The northern fulmar (Fulmarus glacialis) has previously been shown to accumulate a wide range, and occasionally high concentrations of organochlorines (OCs) (e.g., PCBs, chlorobenzenes, DDT- andContinue Reading
    The main objective of this study was to investigate possible temporal trends of persistent organic pollutants (POPs) and mercury in eggs of herring gulls (Larus argentatus), black-legged kittiwakesContinue Reading
  • Kjetil Sagerup, Lisa Bjørnsdatter Helgason, +4 authors Geir Wing Gabrielsen
  • Chemistry, Medicine
  • The Science of the total environment
  • 1 November 2009
  • Dead and dying glaucous gulls (Larus hyperboreus) were collected on Bjørnøya in the Barents Sea in 2003, 2004 and 2005. Autopsies of the seabirds only explained a clear cause of death for three (14%)Continue Reading
  • Lisa Bjørnsdatter Helgason, Augustine Arukwe, +6 authors Johannes Wolkers
  • Biology, Medicine
  • Comparative biochemistry and physiology…
  • 1 June 2010
  • Arctic seabirds are exposed to a wide range of halogenated organic contaminants (HOCs). Exposure occurs mainly through food intake, and many pollutants accumulate in lipid-rich tissues. Little isContinue Reading
  • Lisa Bjørnsdatter Helgason, Hans Wolkers, Eva Fuglei, Oystein Ahlstrøm, Derek C G Muir, Even Hjalmar Jørgensen
  • Biology, Medicine
  • Environmental toxicology and chemistry
  • 1 August 2013
  • Many Arctic animals carry high body burdens of organochlorine contaminants (OCs) as a result of long-range transport of persistent pollutants. It has been shown that seasonal mobilization of body fatContinue Reading
  • Hans Wolkers, Bjørn Arne Krafft, Bert van Bavel, Lisa Bjørnsdatter Helgason, Christian Lydersen, Kit Maureen Kovacs
  • Chemistry, Medicine
  • Journal of toxicology and environmental health…
  • 2 June 2008
  • Blubber was analyzed for a wide range of contaminants from five sub-adult and eight adult male ringed seals sampled in 2004, namely, for polychlorinated biphenyls (PCBs), hexachlorobenzene (HCB),Continue Reading