J. Phys. IV France 107 (2003) 739
Heavy metals, especially lead, deposition recorded in an ombrotrophic peat bog near Manchester, United KingdomG. Le Roux1, D. Weiss2, 3, A. Cheburkin1, N. Rausch1, J. Grattant4, 1, M. Krachler1 and W. Shotyk1
1 Institute of Environmental Geochemistry, University of Heidelberg, lm NeuenheimerFeld 236, 69120 Heidelberg, Germany
2 Department of Hearth Science and Engineering, Imperial College of Science, Technology and Medicine, London, U.K.
3 Department of Mineralogy, Natural History Museum, London, U.K.
4 The Institute of Earth Studies, The University of Wales Aberystwyth, U.K.
A peat monolith representing up to 4,000 years of peat accumulation near Manchester, England, was collected. Major and trace elements were analysed with XRF and for Cd and Pb in the deeper samples with GF-AAS following acid digestion. Pb isotopic composition was measured with TIMS and ICP-MS. The results show a pollution since the Roman Period due to local lead sources and an increase in lead pollution in the last century due to leaded gasoline as fingerprinted by Pb isotopic signatures.
© EDP Sciences 2003