• Constraints on oceanic methane emissions west of Svalbard from atmospheric in situ measurements and Lagrangian transport modeling 

      Pisso, Ignacio; Myhre, Cathrine Lund; Platt, Stephen Matthew; Eckhardt, Sabine; Hermansen, Ove; Schmidbauer, Josef Norbert; Mienert, Jurgen; Vadakkepuliyambatta, Sunil; Bauguitte, S.; Pitt, J; Allen, G.; Bower, KN; O'Shea, S; Gallagher, MW; Percival, C.J; Pyle, J; Cain, M.; Stohl, Andreas (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-10)
    • Low concentrations of persistent organic pollutants (POPs) in air at Cape Verde 

      Nøst, Therese Haugdahl; Halse, Anne Karine; Schlabach, Martin; Bäcklund, Are; Eckhardt, Sabine; Breivik, Knut (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-09-01)
      Ambient air is a core medium for monitoring of persistent organic pollutants (POPs) under the Stockholm Convention and is used in studies of global transports of POPs and their atmospheric sources and source regions. Still, data based on active air sampling remain scarce in many regions. The primary objectives of this study were to (i) monitor concentrations of selected POPs in air outside West ...
    • Methane at Svalbard and over the European Arctic Ocean 

      Platt, Stephen Matthew; Eckhardt, Sabine; Ferré, Benedicte; Fisher, Rebecca E.; Hermansen, Ove; Jansson, Pär; Lowry, David; Nisbet, Euan G.; Pisso, Ignacio; Schmidbauer, Norbert; Silyakova, Anna; Stohl, Andreas; Svendby, Tove Marit; Vadakkepuliyambatta, Sunil; Mienert, Jurgen; Myhre, Cathrine Lund (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-05)
      Methane (CH<sub>4</sub>) is a powerful greenhouse gas. Its atmospheric mixing ratios have been increasing since 2005. Therefore, quantification of CH<sub>4</sub> sources is essential for effective climate change mitigation. Here we report observations of the CH<sub>4</sub> mixing ratios measured at the Zeppelin Observatory (Svalbard) in the Arctic and aboard the research vessel (RV) Helmer Hanssen ...
    • Modelling PCB-153 in northern ecosystems across time, space, and species using the nested exposure model 

      Krogseth, Ingjerd Sunde; Breivik, Knut; Frantzen, Sylvia; Nilsen, Bente Merete; Eckhardt, Sabine; Nøst, Therese Haugdahl; Wania, Frank (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-06)
      There is concern over possible effects on ecosystems and humans from exposure to persistent organic pollutants (POPs) and chemicals with similar properties. The main objective of this study was to develop, evaluate, and apply the Nested Exposure Model (NEM) designed to simulate the link between global emissions and resulting ecosystem exposure while accounting for variation in time and space. NEM, ...
    • Spatial distribution of Dechlorane Plus and dechlorane related compounds in European background air 

      Skogeng, Lovise Pedersen; Halvorsen, Helene Lunder; Breivik, Knut; Eckhardt, Sabine; Herzke, Dorte; Moeckel, Claudia; Krogseth, Ingjerd Sunde (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-10)
      The highly chlorinated chemical Dechlorane Plus (DP) was introduced as a replacement flame retardant for Mirex, which is banned through the Stockholm Convention (SC) for its toxicity (T), environmental persistence (P), potential for bioaccumulation (B) and long-range environmental transport potential (LRETP). Currently, Dechlorane Plus is under consideration for listing under the Stockholm Convention ...
    • Spatial variability and temporal changes of POPs in European background air 

      Halvorsen, Helene Lunder; Bohlin-Nizzetto, Pernilla; Eckhardt, Sabine; Gusev, Alexey; Moeckel, Claudia; Shatalov, Victor; Skogeng, Lovise Pedersen; Breivik, Knut (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-14)
      Concentration data on POPs in air is necessary to assess the effectiveness of international regulations aiming to reduce the emissions of persistent organic pollutants (POPs) into the environment. POPs in European background air are continuously monitored using active- and passive air sampling techniques at a limited number of atmospheric monitoring stations. As a result of the low spatial resolution ...