Figure 1
From: Tracking natural and anthropogenic Pb exposure to its geological source
A comparison of the isotope composition of labile Pb in modern and ancient soils. The data from the modern soils was produced by leaching modern soil samples with deionised water. This modern data (
) is compared with the Pb isotope composition of bone and dentine from archaeological sites. The assumption made is that the bone and dentine re-equilibrated with the labile soil component close to the time of burial and thus provide a measure of labile Pb that predates modern pollutants (
).
