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Please note that this session was withdrawn and is no longer available in the respective programme. This withdrawal might have been the result of a merge with another session.

BG1.4

Mercury through time – Reconstructions of Hg deposition on different timescales using natural archives
Convener: Sophia Hansson  | Co-Conveners: Tomas Navratil , Johan Rydberg 

The present status of the environment, including environmental issues such as heavy metal accumulation in aquatic and terrestrial ecosystems, is in part the consequence of long-term changes occurring long-before modern monitoring series were in place. However, natural archives, such as ice-cores, tree-rings, lake sediments, and peat bogs, where information about past conditions can be preserved, provide us with the potential to study aspects of the atmospheric cycling of elements, such as mercury, on timescales much longer than the decade or two available from atmospheric deposition monitoring programs. In this session, we welcome contributions focusing on the reconstruction of Hg as a pollutant over time using natural archives. Both long-term and short-term reconstructions are welcomed. New papers on tools and ideas on how Hg is integrated and preserved in these environmental archives are also welcomed.