FN Archimer Export Format
PT J
TI Springtime changes in snow chemistry lead to new insights into mercury methylation in the Arctic
BT 
AF LAROSE, Catheririe
   DOMMERGUE, Aurelien
   DE ANGELIS, Martine
   COSSA, Daniel
   AVERTY, Bernard
   MARUSCZAK, Nicolas
   SOUMIS, Nicolas
   SCHNEIDER, Dominique
   FERRARI, Christophe
AS 1:1,2,3;2:1;3:1;4:4;5:5;6:1;7:1;8:2,3;9:1;
FF 1:;2:;3:;4:PDG-DOP-DCN-BE-LBCM;5:PDG-DOP-DCN-BE-LBCM;6:;7:;8:;9:;
C1 Univ Grenoble 1, CNRS, LGGE, F-38402 St Martin Dheres, France.
   Univ Grenoble 1, Lab Adaptat & Pathogenie Microorganismes, F-38042 Grenoble 9, France.
   CNRS UMR 5163, Paris, France.
   Ctr Mediterranee, IFREMER, F-83507 La Seyne Sur Mer, France.
   Ctr Nantes, IFREMER, F-44311 Nantes, France.
C2 UNIV GRENOBLE, FRANCE
   UNIV GRENOBLE, FRANCE
   CNRS, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
SI TOULON
   NANTES
SE PDG-DOP-DCN-BE-LBCM
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 4.101
TC 60
UR https://archimer.ifremer.fr/doc/00018/12904/9880.pdf
LA English
DT Article
AB Seasonal snow is an active media and an important climate factor that governs nutrient transfer in Arctic ecosystems. Since the snow stores and transforms nutrients and contaminants, it is of crucial importance to gain a better understanding of the dynamics of contaminant cycling within the snowpack and its subsequent release to catchments via meltwater. Over the course of a two-month field study in the spring of 2008, we collected snow and meltwater samples from a seasonal snowpack in Ny-Alesund, Norway (78 degrees 56'N, 11 degrees 52'E), which were analyzed for major inorganic ions and some organic acids, as well as total, dissolved, bioavailable mercury (THg, DHg, BioHg, respectively) and monomethylmercury (MMHg) species. We observe a seasonal gradient for ion concentrations, with surface samples becoming less concentrated as the season progressed. A significant negative correlation between BioHg and MMHg was observed in the snowpack. MMHg was positively and significantly correlated to methanesulfonate concentrations. Based on these results, we propose a new model for aerobic methylation of mercury involving species in the dimethylsulfoniopropionate cycle. (C) 2010 Elsevier Ltd. All rights reserved.
PY 2010
PD NOV
SO Geochimica Et Cosmochimica Acta
SN 0016-7037
PU Pergamon-elsevier Science Ltd
VL 74
IS 22
UT 000284077400001
BP 6263
EP 6275
DI 10.1016/j.gca.2010.08.043
ID 12904
ER

EF