Blar i forfatter "Warner, Nicholas Alexander"

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    • Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs? 

      Mcgovern, Maeve; Warner, Nicholas Alexander; Borgå, Katrine; Evenset, Anita; Carlsson, Pernilla Marianne; Skogsberg, Stina Linnea Emelie; Søreide, Janne; Ruus, Anders; Christensen, Guttorm; Poste, Amanda (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-26)
      Climate change-driven increases in air and sea temperatures are rapidly thawing the Arctic cryosphere with potential for remobilization and accumulation of legacy persistent organic pollutants (POPs) in adjacent coastal food webs. Here, we present concentrations of selected POPs in zooplankton (spatially and seasonally), as well as zoobenthos and sculpin (spatially) from Isfjorden, Svalbard. ...

    • Kartlegging av miljøgifter i sjøfuglegg fra Sklinna og Røst 

      Huber, Sandra; Nygård, Torgeir; Warner, Nicholas Alexander; Remberger, Mikael; Harju, Mikael; Uggerud, Hilde Thelle; Kaj, Lennart; Schalbach, Martin; Hanssen, Linda (Research report; Forskningsrapport, 2014)
      I dette kartleggingsprosjektet ble analysert konsentrasjonene til en lang rekke uorganiske og organiske miljøgifter, som metaller, organotinn, polysykliske aromatiske hydrokarboner, polyklorerte bifenyler og metabolitter, klorerte parafiner, klororganiske pesticider og andre pesticider, per- og polyfluoralkylstoffer, deklorane pluss, oktaklorostyren, organofosfor flammehemmere, bromerte flammehemmere, ...

    • Optimization of a low flow sampler for improved assessment of gas and particle bound exposure to chlorinated paraffins 

      Al Saify, Insam; Cioni, Lara; van Mourik, Louise M.; Brandsma, Sicco H.; Warner, Nicholas Alexander (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-23)
      An optimized low volume sampler was developed to determine both gas- and particle bound concentrations of short and medium-chain chlorinated paraffins (S/MCCPs). Background contamination was limited by the sampler design, providing method quantification limits (MQLs) at least two orders of magnitude lower than other studies within the gas (MQL: 500 pg (ΣSCCPs), 1.86 ng (ΣMCCPs)) and particle (MQL: ...

    • Reducing sampling artifacts in active air sampling methodology for remote monitoring and atmospheric fate assessment of cyclic volatile methylsiloxanes 

      Warner, Nicholas Alexander; Nikiforov, Vladimir; Krogseth, Ingjerd Sunde; Bjørneby, Stine Marie; Kierkegaard, Amelie; Bohlin-Nizzetto, Pernilla (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-04)
      Active sampling methodology for atmospheric monitoring of cyclic volatile methylsiloxanes (cVMS) was improved to reduce sampling artifacts. A new sorbent, ABN Express (ABN), was evaluated for storage stability and measurement accuracy. Storage stability of cVMS on ABN showed less than 1% degradation of the individual <sup>13</sup>C-labelled octamethylcyclotetrasiloxane (<sup>13</sup>C<sub>4</sub>-D4), ...

    • Trophic and fitness correlates of mercury and organochlorine compound residues in egg-laying Antarctic petrels 

      Carravieri, Alice; Warner, Nicholas Alexander; Herzke, Dorte; Brault-Favrou, Maud; Tarroux, Arnaud; Fort, Jérôme; Bustamante, Paco; Descamps, Sebastien (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-24)
      Understanding the drivers and effects of exposure to contaminants such as mercury (Hg) and organochlorine compounds (OCs) in Antarctic wildlife is still limited. Yet, Hg and OCs have known physiological and fitness effects in animals, with consequences on their populations. Here we measured total Hg (a proxy of methyl-Hg) in blood cells and feathers, and 12 OCs (seven polychlorinated biphenyls, PCBs, ...