%0 conference poster %@ %A Berg, T.,Aspmo, K.,Bahlmann, E.,Banic, C.,Deary, J.,Dommergue, A.,Ebinghaus, R.,Ferrari, C.,Gueheneux, G.,Gauchard, G.,Gardfelt, K.,Landis, M.,Magand, O.,Munthe, J.,Pirrone, N.,Planchon, F.,Sekkesaeter, S.,Sommar, J.,Sprovieri, F.,Stevens, R.,Temme, C.,Urba, A.,Valdal, A.-K-,Waengberg, I. %D 2004 %J 7th International Conference on Mercury as a Global Pollutant %N %P %T Four years measurements of mercury depletion events (MDEs) at Ny Alesund, Svalbard %U %X