Reconstruction of atmospheric lead pollution during the Roman period recorded in Belgian ombrotrophic peatlands cores

Allan, Mohammed; Pinti, Daniele; Ghaleb, bassam; Verheyden, sophie; Fagel, Nathalie

doi:10.3390/atmos9070253

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Reconstruction of atmospheric lead pollution during the Roman period recorded in Belgian ombrotrophic peatlands cores

Allan, Mohammed; Pinti, Daniele; Ghaleb, bassam et al.

2018 • In Atmosphere

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https://hdl.handle.net/2268/226284

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10.3390/atmos9070253

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Keywords :

Atmospheric pollution,; Pb isotopes, Peat geochemistry,; Pb accumulation rate, Roman period,

Abstract :

[en] Two peat cores from two bogs were used to record changes in the atmospheric Pb accumulation rate (Pb AR) in Belgium during the Roman period. The two records were compared to assess the reliability of peat cores as archives of atmospheric Pb deposition and to establish histories of atmospheric emissions from anthropogenic sources. To address these issues we analyzed Pb concentration and its isotopes, using ICP-MS, LA-ICP-MS and MC-ICP-MS in two peat sections, spanning 1000 yr each. Lead concentrations in the two cores range from 0.1 to 60 μg g−1, with the maxima between 15 and 60 μg g−1. The average natural background of Pb AR varies between 0.003 and 0.07 mg m-2 yr-1 and the maximum ranges from 0.7 to 1.2 mg m-2 yr-1 between 50 BC and AD 215. The highest Pb AR exceed the pre-Roman period values by a factor of 17-80. Pb isotopic composition indicates that mining and metallurgical activities were the predominant sources of pollution during the Roman period. The Pb AR and chronologies in the Belgian peat cores are consistent with those reported for other continental archives as lake sediments, peat and ice cores.

Disciplines :

Earth sciences & physical geography

Author, co-author :

Allan, Mohammed ; Université de Liège - ULiège > Département de géologie > Argiles, géochimie et environnements sédimentaires

Pinti, Daniele; Université du Québec à Montréal > GEOTOP

Ghaleb, bassam

Verheyden, sophie

Fagel, Nathalie ; Université de Liège - ULiège > Département de géologie > Argiles, géochimie et environnements sédimentaires

Language :

English

Title :

Reconstruction of atmospheric lead pollution during the Roman period recorded in Belgian ombrotrophic peatlands cores

Publication date :

07 July 2018

Journal title :

Atmosphere

eISSN :

2073-4433

Publisher :

Rotoweb Cantelli, Italy

Peer reviewed :

Peer Reviewed verified by ORBi

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since 05 July 2018

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