Blar i forfatter "Nikiforov, Vladimir"

Viser treff 1-8 av 8

    • DNA double‐strand breaks in Arctic char (Salvelinus alpinus) from Bjørnøya in the Norwegian Arctic 

      Neerland, Eirik D.; Bytingsvik, Jenny; Nikiforov, Vladimir; Evenset, Anita; Krøkje, Åse (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-25)
      High levels of organochlorine contaminants (OCs) have been found in arctic char (<i>Salvelinus alpinus</i>) from Lake Ellasjøen, Bjørnøya (Norwegian Arctic). The aim of the present study was to investigate the potential genotoxic effect of environmental organochlorine contaminant exposure in arctic char from Ellasjøen compared with arctic char from the low‐contaminated Lake Laksvatn nearby. Blood ...

    • Fluorine Mass Balance, including Total Fluorine, Extractable Organic Fluorine, Oxidizable Precursors, and Target Per- and Polyfluoroalkyl Substances, in Pooled Human Serum from the Tromsø Population in 1986, 2007, and 2015 

      Cioni, Lara; Plassmann, Merle; Benskin, Jonathan P.; Coelho, Ana Carolina; Nøst, Therese Haugdahl; Rylander, Karin Charlotta Maria; Nikiforov, Vladimir; Sandanger, Torkjel Manning (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-25)
      Of the thousands of per- and polyfluoroalkyl substances (PFAS) known to exist, only a small fraction (≤1%) are commonly monitored in humans. This discrepancy has led to concerns that human exposure may be underestimated. Here, we address this problem by applying a comprehensive fluorine mass balance (FMB) approach, including total fluorine (TF), extractable organic fluorine (EOF), total oxidizable ...

    • Ingestion of car tire crumb rubber and uptake of associated chemicals by lumpfish (Cyclopterus lumpus) 

      Hägg, Fanny; Herzke, Dorte; Nikiforov, Vladimir; Booth, Andy; Sperre, Kristine Hopland; Sørensen, Lisbet; Egeness, Mari Jystad; Halsband, Claudia (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-12)
      Car tire rubber constitutes one of the largest fractions of microplastics emissions to the environment. The two main emission sources are tire wear particles (TWPs) formed through abrasion during driving and runoff of crumb rubber (CR) granulate produced from end-of-life tires that is used as infill on artificial sports fields. Both tire wear particles and crumb rubber contain a complex mixture ...

    • 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), ...

    • Screening new PFAS compounds 2018 

      Hanssen, Linda; Herzke, Dorte; Nikiforov, Vladimir; Moe, Børge; Nygård, Torgeir; van Dijk, Jiska Joanneke; Gabrielsen, Geir W.; Fuglei, Eva; Yeung, Leo; Vogelsang, Christian; Carlsson, Pernilla Marianne (Research report; Forskningsrapport, 2019)
      This screening project has focused on the occurrence of conventional andemerging PFASs in terrestrial and marine environments, including the Arctic. Conventional PFASs were found to be wide-spread in the environment and for the first time in Norway reported in wolf, a top predator from the terrestrial environment.Otters living in close proximity to human settlements and preying on the marine food ...

    • Screening Programme 2021 

      Schlabach, Martin; van Bavel, Bert; Bæk, Kine; Dadkhah, Mona Eftekhar; Gabrielsen, Geir W.; Nikiforov, Vladimir; Bohlin-Nizzetto, Pernilla; Reid, Malcolm James; Rostkowski, Pawel; Rundberget, Thomas; Ndungu, Kuria; Rødland, Elisabeth Strandbråten; Schmidbauer, Norbert; Harju, Michael; Beylich, Bjørnar; Vogelsang, Christian (Research report; Forskningsrapport, 2022-08-30)
      The Screening Programme 2021 was carried out by the Norwegian Institute for Water Research (NIVA) and NILU-Norwegian Institute for Air Research. The spotlight was placed on the occurrence and possible environmental problems of 218 chemicals. The selected substances may be included in numerous products and their usage patterns are not easily defined so an array of different locations and sample-types ...

    • Targeted PFAS analyses and Extractable Organofluorine – Enhancing our Understanding of the presence of unknown PFAS in Norwegian wildlife 

      Herzke, Dorte; Nikiforov, Vladimir; Yeung, Leo WY.; Moe, Børge; Routti, Heli Anna Irmeli; Nygård, Torgeir; Gabrielsen, Geir W.; Hanssen, Linda (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-17)
      With the current possible presence of thousands of PFAS compounds in industrial emissions, there is an increasing need to assess the impacts of PFAS regulation of conventional PFAS on one hand and the exposure to emerging and yet unknown PFAS on the other. Today’s analytical methodologies using targeted approaches are not sufficient to determine the complete suite of PFAS present. To evaluate the ...

    • Total Oxidizable Precursors Assay for PFAS in Human Serum 

      Cioni, Lara; Nikiforov, Vladimir; Miranda Fernandes Coelho, Ana Carolina; Sandanger, Torkjel M; Herzke, Dorte (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-23)
      Per- and polyfluoroalkyl substances (PFAS) are a class of chemicals including over 4700 substances. As a limited number of PFAS is routinely analyzed in human serum, complementary analytical methods are required to characterize the overlooked fraction. A promising tool is the total oxidizable precursors (TOP) assay to look for precursors by oxidation to perfluoroalkyl acids (PFAA). The TOP assay was ...