Reconstruction of historical atmospheric Pb using Dutch urban lake sediments: A Pb isotope study

N. Walraven 1 B.J.H. Van Os 2 Gérard Klaver 3 J.J. Middelburg 4 G.R. Davies 5
1 GeoConnect
2 Rijksdienst voor Archeologie
3 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
4 Faculty of Geosciences
5 VU - Vrije Universiteit Amsterdam [Amsterdam]
Abstract : Lake sediments provide a record of atmospheric Pb deposition and changes in Pb isotope composition. To our knowledge, such an approach has not previously been performed in The Netherlands or linked to national air monitoring data. Results are presented for Pb content and isotope composition of Cs-137 dated lake sediments from 2 Dutch urban lakes. Between 1942 and 2002 A.D. anthropogenic atmospheric Pb deposition rates in the two lakes varied from 12 +/- 2 to 69 +/- 16 mu g cm(-2) year(-1). The rise and fall of leaded gasoline is clearly reflected in the reconstructed atmospheric Pb deposition rates. After the ban on leaded gasoline, late 1970s/early 1980s, atmospheric Pb deposition rates decreased rapidly in the two urban lakes and the relative contributions of other anthropogenic Pb sources - incinerator ash (industrial Pb) and coal/galena increased sharply. Atmospheric Pb deposition rates inferred from the lake record a clear relationship with nearby measured annual mean air Pb concentrations. Based on this relationship it was estimated that air Pb concentrations between 1942 and 2002 A.D. varied between 5 and 293 ng/m(3)
Keywords : Lake Sediment Lead Isotopes Atmospheric Deposition
Type de document :
Article dans une revue
Science of the Total Environment, Elsevier, 2014, 484, pp.185-195. 〈10.1016/j.scitotenv.2014.02.062〉
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https://hal-brgm.archives-ouvertes.fr/hal-01176483
Contributeur : Anne-Marie Pouget <>
Soumis le : mercredi 15 juillet 2015 - 14:46:46
Dernière modification le : jeudi 16 juillet 2015 - 01:02:27

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N. Walraven, B.J.H. Van Os, Gérard Klaver, J.J. Middelburg, G.R. Davies. Reconstruction of historical atmospheric Pb using Dutch urban lake sediments: A Pb isotope study. Science of the Total Environment, Elsevier, 2014, 484, pp.185-195. 〈10.1016/j.scitotenv.2014.02.062〉. 〈hal-01176483〉

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