Article (Scientific journals)
Reconstructing historical atmospheric mercury deposition in Western Europe using: Misten peat bog cores, Belgium
Allan, Mohammed; Le Roux, Gael; Sonke, Jeroen et al.
2013In Science of the Total Environment, 442, p. 290-301
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Keywords :
Atmospheric pollution; Coal combustion; Hg accumulation rate;; Mercury; Multi-coring;; Peat geochemistry; Hautes-Fagnes
Abstract :
[en] Four sediment cores were collected in 2008 from the Misten ombrotrophic peat bog in the Northern part of the Hautes Fagnes Plateau in Belgium. Total mercury (Hg) concentrations were analyzed to investigate the intra-site variability in atmospheric Hg deposition over the past 1500 years. Mercury concentrations in the four cores ranged from 16 to 1100 μg kg− 1, with the maxima between 840 and 1100 μg kg− 1. A chronological framework was established using radiometric 210Pb and 14C dating of two cores (M1 and M4). Pollen horizons from these two cores were correlated with data from two additional cores, providing a consistent dating framework between all the sites. There was good agreement between atmospheric Hg accumulation rates in the four cores over time based on precise age dating and pollen chronosequences. The average Hg accumulation rate before the influence of human activities (from 500 to 1300 AD) was 1.8 ± 1 μg m− 2 y− 1 (2SD). Maximum Hg accumulation rates ranged from 90 to 200 μg m− 2 y− 1 between 1930 and 1980 AD. During the European–North American Industrial Revolution, the mean Hg accumulation rate exceeded the pre-Industrial values by a factor of 63. Based on comparisons with historical records of anthropogenic activities in Europe and Belgium, the predominant regional anthropogenic sources of Hg during and after the Industrial Revolution were coal burning and smelter Hg emissions. Mercury accumulation rates and chronologies in the Misten cores were consistent with those reported for other European peat records.
Research center :
Argiles, Géochimie et Environnement sédimentaires, Département de Géologie,
Disciplines :
Earth sciences & physical geography
Author, co-author :
Allan, Mohammed ;  Université de Liège - ULiège > Doct. sc. (géologie - Bologne)
Le Roux, Gael
Sonke, Jeroen
Piotrowska, Natalia
Streel, Maurice ;  Université de Liège - ULiège > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences)
Fagel, Nathalie  ;  Université de Liège - ULiège > Département de géologie > Argiles, géochimie et environnements sédimentaires
Language :
English
Title :
Reconstructing historical atmospheric mercury deposition in Western Europe using: Misten peat bog cores, Belgium
Publication date :
01 January 2013
Journal title :
Science of the Total Environment
ISSN :
0048-9697
eISSN :
1879-1026
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
442
Pages :
290-301
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 November 2012

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