Abstract
Lead-210 dating of peat cores is one approach that has been used to arrive at historical rates of heavy metal deposition. Despite concerns regarding the validity of210Pb dating due to Pb mobility,210Pb dating can be used if the dates are corroborated with some other independent dating technique. In this study, based on analyses of210Pb dated, pollen corroborated peat cores from two sites in the Czech Republic (Jezerní sla
and BoŽí Dar Bog), we illustrate a previously unexplored problem concerning the computation of metal deposition, using Pb as an example. When peat cores are collected, sectioned into depth intervals,210Pb dated and analyzed for metal contents, the210Pb dates most appropriately correspond to the midpoint depth for each interval, whereas the metal contents correspond to the interval between the top and bottom of each section. Thus the210Pb dates and metal content values throughout the core are offset by half the distance of each depth interval. In calculating historical rates of heavy metal deposition two approaches are available for correcting for the depth interval offsets, the traditional approach of date interpolation and our newly proposed metal content interpolation. We see noa priori reason for choosing one approach over the other, and suggest simultaneous use of both date and metal content interpolation. Additionally, acid-insoluble ash (AIA), which has been proposed as a dating technique in and of itself, may be more useful as an interpretive tool which may provide insights into the nature or sources of atmospherically deposited Pb. For example, plots of Pb content per core section versus AIA content per core section for Jezerní slat, located in a relatively pristine area, reveal increased Pb content without increased AIA contents in depths shallower than 6 cm, indicating deposition of gasoline-derived Pb after its introduction in 1922. Similar plots for BoŽí Dar Bog, located in a polluted industrialized region, indicate greater inputs of Pb than would be predicted from AIA, based on the Jezerní sla
analyses. We interpret the apparent excess Pb deposition at BoŽí Dar Bog as being contributed by soil-derived dust from local metal mining. Elevated rates in Pb deposition at BoŽí Dar Bog are consistent with the history of local mining known to have occurred in the vicinity. Finally, magnetic susceptibility measurements identify combustion of fossil fuels as a source of atmospheric Pb deposition at BoŽí Dar Bog, but not at Jezerní sla
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References
Appleby, P. G. and Oldfield, F.: 1978, ‘The Calculation of210Pb Dates Assuming a Constant Rate of Supply of Unsupported210Pb to the Sediment’,Catena 5, 1–8.
Bernard, J. H. and Pouba, A.: 1986,Ore Deposits and Metallurgy of the Czechoslovak Part of the Bohemian Massif, Academia, Prague.
Bradley, J. F. N.: 1971,Czechoslovakia — A Short History, University Press, Edinburgh.
BŘízová, E.: 1993, ‘Reconstruction of Vegetation Succession of the Peat Bog BoŽí Dar Using Pollen Analysis,’ M.S., Geofund, Prague (in Czech).
Busek, V. and Spulber, N.: 1957,Czechoslovakia, East-Central Europe Under the Communists, Atlantic Books, New York.
Clymo, R. S.: 1965, ‘Experiments on Breakdown ofSphagnum in Two Bogs.’J. Ecol. 53, 747–758.
Clymo, R. S. and Hayward, P. M.: 1982, The Ecology ofSphagnum’, in A. J. E. Smith (ed.),Bryophyte Ecology, Chapman and Hall Publishers, London, pp. 229–289.
Clymo, R. S.: 1984, ‘The Limits to Peat Bog Growth’,Phil. Trans. Royal Soc. Lond. B 303, 605–654.
Clymo, R. S.: 1987, ‘Interactions ofSphagnum with Water and Air’, in T. C. Hutchinson and K. M. Meema (eds.),Effects of Atmospheric Pollutants on Forests, Wetlands and Agricultural Ecosystems, Springer-Verlag, Berlin, pp. 513–529.
Clymo, R. S., Oldfield, F., Appleby, P.G., Pearson, G. W., Ratnesar, P. and Richardson, N.: 1990, ‘The Record of Atmospheric Deposition on a Rainwater Dependent Peatland.‘,Phil. Trans. Royal Soc. Lond. B 327, 331–338.
Cole, K. L., Engstrom, D. R., Futyma, R. P. and Stottlemeyer, R.: 1990, ‘Past Atmospheric Deposition of Metals in Northern Indiana Measured in a Peat Core From Cowles Bog’,Environ. Sci. Technol. 24, 543–549.
Damman, A.: 1978, ‘Distribution and Movement of Elements in Ombrotrophic Peat Bogs’,Oikos 30, 480–495.
Erdtman, G.: 1943,An Introduction to Pollen Analysis, Ronald Press, New York.
Erdtman, G.: 1954,An Introduction to Pollen Analysis, Chronica Botanica Co., Waltham, Massachusetts.
Firbas, F.: 1949, SpÄt- und nacheiszeitliche Waldgeschichte Mitteleuropas nördich der Alpen, Allegemeine Waldgeschichte, Jena.
Firbas, F.: 1952, SpÄt- und nacheiszeitliche Waldgeschichte Mitteleuropas nördich der Alpen. Waldgeschichte der einzelnen Landschaften, Jena.
Hermann, A. H.: 1975,A History of The Czechs, Penguin Books Ltd., London.
Hvatum, O. C., BØlviken, B. and Steinnes, E.: 1983, ‘Heavy Metals in Norwegian Ombrotrophic Bogs’,Environ. Biogeochem. 35, 351–356.
Jankovská, V.: 1992, The History of the Krušné hory Forests in the Post-Glacial Times, Lesnické práce,3, 73.
Kratochvíl, J.: 1943,Topographical Mineralogy of Bohemia, Řivnáč, Prague.
Livett, E., Lee, J. A. and Tallis, J. H.: 1979, ‘Lead, Zinc and Copper Analyses of British Blanket Peats’,J. Ecol. 67, 865–891.
Livett, E. A.: 1988, ‘Geochemical Monitoring of Atmospheric Heavy Metal Pollution: Theory and Application’,Adv. Ecol. Res. 18, 65–177.
Madsen, P. P.: 1981, ‘Peat Bog Records of Atmospheric Mercury Deposition’,Nature 293, 127–135.
Moldan, B. and Schnoor, J. L.: 1992, ‘Czechoslovakia-Examining a Critically Ill Environment’,Environ. Sci. Technol. 26, 14–21.
Moldan, B.: 1991,Atmospheric Deposition: A Biogeochemical Process, Academia, Praha.
Norton, S. A.: 1987, ‘The Stratigraphic Record of Atmospheric Loading of Metals at the Ombrotrophic Big Heath Bog, Mt. Desert Island’, in T. C. Hutchinson. and K. M. Meema (eds.),Effects of Atmospheric Pollutants on Forests, Wetlands and Agricultural Ecosystems, Springer-Verlag, Berlin, pp. 561–575.
Norton, S. A. and Kahl, J.: 1987, ‘A Comparison of Lake Sediments and Ombrotrophic Peat Deposits as Long-term Monitors of Atmospheric Pollution’, in T. P. Boyle (ed.),New Approaches to Monitoring Aquatic Ecosystems, ASTM, Philadelphia, pp. 40–57.
Novák, M. J. V. and Wieder, R. K.: 1992, ‘Inorganic and Organic Sulfur Profiles in NineSphagnum Peat Bogs in the United States and Czechoslovakia’,Water, Air, and Soil Pollut. 65, 353–369.
Novák, M. J. V.: 1990, ‘Speciation of Sulfur and Vertical δ34S Profiles in Sphagnum-Dominated Wetlands: Indirect Evidence for Openness of the System Toward Buried Sulfur’, M. S. Thesis, Villanova University, Villanova, Pennsylania.
NoŽička, J.: 1957,The Development of the Czechoslovak Forests in Brief, Prague.
Overbeck, R: 1958, ‘Pollen Analyse Quartarer Bildungen’, in H. Freund (ed.),Handbuch der Mikroakipie in der Technik, Frankfurt am Main.
PylvÄnÄinen, M.: 1993,Manual for Integrated Monitoring, Environmental Data Centre, National Board of Waters and the Environment, Helsinki.
Rapaport, R. A. and Eisenreich, S. J.: 1986, ‘Atmospheric Deposition of Toxaphene to Eastern North America Derived from Peat Accumulation’,Atmos. Environ. 20, 2367–2379.
Rapaport, R. A., Urban, N. R., Capel, P. D., Baker, J. E., Looney, B. B., Eisenreich, S. J. and Gorham, E.: 1985, ‘“New” DDT Inputs to North America: Atmospheric Deposition’,Chemosphere 14, 1167–1173.
Schell, W. R.: 1987, ‘A Historical Perspective of Atmospheric Chemicals Deposited on a Mountain Top Peat Bog in Pennsylvania’,Int. J. Coal Geol. 8, 147–173.
Schell, W. R., Sanchez, A. L. and Gruland, C.: 1986, ‘New Data from Peat Bogs May Give a Historical Perspective on Acid Deposition’,Water, Air, and Soil Pollut. 30, 393–409.
Urban, N. R., Eisenreich, S. J., Grigal, D. F. and Schurr, K. T.: 1990, ‘Mobility and Diagenesis of Pb and210Pb in Peat’,Geochim. Cosmochim. Acta 54, 3329–3346.
Urban, N. R., Eisenreich, S. J. and Grigal, D. F.: 1989, ‘Sulfur Cycling in a ForestedSphagnum Bog in Northern Minnesota’,Biogeochemistry 7, 81–109.
Urban, N. R.: 1983, ‘The Nitrogen Cycle in a Forested Bog Watershed in Northern Minnesota’, M. S. Thesis, Univ. of Minnesota, Minneapolis, Minnesota.
Wieder, R. K., Novák, M. J. V., Schell, W. R. and Rhodes, T.: 1994, ‘Rates of Peat Accumulation over the Past 200 Years in FiveSphagnum-Dominated Peatlands in the United States’,J. Paleolimnol. 11, 1–13.
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Vile, M.A., Novák, M.J.V., BŘízová, E. et al. Historical rates of atmospheric Pb deposition using210Pb dated peat cores: Corroboration, computation, and interpretation. Water Air Soil Pollut 79, 89–106 (1995). https://doi.org/10.1007/BF01100432
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DOI: https://doi.org/10.1007/BF01100432