Tracking natural and anthropogenic Pb exposure to its geological source

  title={Tracking natural and anthropogenic Pb exposure to its geological source},
  author={Jane A Evans and V. Pashley and Richard Madgwick and Samantha Neil and Carolyn Chenery},
  journal={Scientific Reports},
Human Pb exposure comes from two sources: (i) natural uptake through ingestion of soils and typified by populations that predate mining activity and (ii) anthropogenic exposure caused by the exposure to Pb derived from ore deposits. Currently, the measured concentration of Pb within a sample is used to discriminate between these two exposure routes, with the upper limit for natural exposure in skeletal studies given as 0.5 or 0.7 mg/kg in enamel and 0.5/0.7 μg/dL in blood. This threshold… 

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