Publication
Title
Profiles of mercury in snow pack at Station Nord, Greenland, shortly after polar sunrise
Author
Abstract
Mercury (Hg) species have been measured in the snow pack at Station Nord, Greenland both in the snow and in the air of snow from February 25 to March 15, 2002, during twilight and low solar irradiation periods. More than 99% of Hg is in the snow itself ( similar to 94 - 97% as Hg2+ and similar to 5% as MeHg+) while less than 1% is in the interstitial air of snow as Hgdegrees. Gaseous Elemental Mercury (Hgdegrees) concentrations, decreased exponentially with depth from similar to 1.5 ng/m(3) outside to similar to 0.1 ng/m(3) at 120 cm depth in the snow air. Hgdegrees incorporation flux to the snow pack has been evaluated to similar to 5.8 - 7.0 pg/m(2)/h which is weak, indicating that this process does not change significantly the Hg content in the snow. We believe that this decrease in the air of snow is the result of fast oxidation processes of Hgdegrees rather than adsorption of Hgdegrees onto snow surfaces.
Language
English
Source (journal)
Geophysical research letters. - Washington, D.C.
Publication
Washington, D.C. : 2004
ISSN
0094-8276 [print]
1944-8007 [online]
Volume/pages
31:3(2004), 4 p.
Article Reference
L03401
ISI
000189051500004
Note
General: doi:10.1029/2003GL018961
Medium
E-only publicatie
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 08.10.2008
Last edited 14.09.2017
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