Quantification of anthropogenic lead in Slovak forest and arable soils along a deposition gradient with stable lead isotope ratios (original) (raw)

2001, Journal of Plant Nutrition and Soil Science

In the environment, the four stable Pb isotopes 204 Pb, 206 Pb, 207 Pb, and 208 Pb occur. While 204 Pb is nonradiogenic, the other isotopes are products of natural radioactive decay series. Isotope ratios mainly depend on the age of the 235 U, 238 U, or 232 Th ore from which the Pb results. Anthropogenically emitted Pb retains the isotopic composition of the ore from which it was derived (Sturges and Barrie, 1987). The isotopic composition of Pb in these emissions frequently differs from the native Pb isotope ratios in soil (Erel, 1998). Therefore, ratios of Pb isotopes provide an opportunity to determine the contribution of deposited Pb from anthropogenic sources to Pb concentrations in soil. In the past, Pb isotope ratios have been used to trace the history of environmental pollution with Pb by analyzing dated sediments (

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