Blar i NTNU Open på forfatter "Steffen, A"
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A synthesis of atmospheric mercury depletion event chemistry in the atmosphere and snow
Steffen, A; Douglas, T; Amyot, M; Ariya, P; Aspmo, K; Berg, Torunn; Bottenheim, J; Brooks, S; Cobbett, F; Dastoor, A; Dommergue, A; Ebinghaus, R; Ferrari, C; Gardfeldt, K; Goodsite, ME; Lean, D; Poulain, AJ; Scherz, C; Skov, H; Sommar, J; Temme, C (Journal article; Peer reviewed, 2008)It was discovered in 1995 that, during the spring time, unexpectedly low concentrations of gaseous elemental mercury (GEM) occurred in the Arctic air. This was surprising for a pollutant known to have a long residence time ... -
Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund
Berg, Torunn; Cole, AS; Engelsen, Ola; Steffen, A; Pfaffhuber, Katrine Aspmo (Journal article; Peer reviewed, 2013)Results from ten years of gaseous elemental mercury (GEM) measurements at Zeppelin station, Ny-A° lesund, Svalbard, show no overall annual trend between 2000 and 2009. Seasonal trend analysis showed significantly ... -
Ten-year trends of atmospheric mercury in the high Arctic compared to Canadian sub-Arctic and mid-latitude sites
Cole, AS; Steffen, A; Aspmo, Katrine; Berg, Torunn; Pilote, Martin; Poissant, Laurelier; Tordon, R; Hung, Hayley (Journal article; Peer reviewed, 2013)Global emissions of mercury continue to change at the same time as the Arctic is experiencing ongoing climatic changes. Continuous monitoring of atmospheric mercury provides important information about long-term trends in ...