Medieval lead mining unearthed inequities in England
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Archaeologists in central England’s Peak District discovered high levels of lead in the tooth enamel of 14 out of 15 medieval people they analyzed.
Researchers from the University of Nottingham examined remains from the 7th century to the 13th century, finding that lead absorption occurred during childhood and remained trapped in the teeth for centuries. The team compared concentrations of lead among individuals to understand patterns of exposure.
The study revealed differences in lead levels potentially linked to social status and gender. People buried with more valuable goods showed lower lead concentrations, suggesting wealthier individuals may have avoided the most dangerous mining tasks. Women in the sample died young, between 17 and 25 years old, prompting researchers to consider the effects of lead exposure on reproductive health, though they could not confirm a direct link.
The analysis also provided insights into the history of lead mining in the region. The researchers found evidence that lead production in the Peak District resumed as early as the mid-7th century, earlier than previously known from historical documents. Higher concentrations of lead in teeth from the late 7th and 8th centuries suggest the pollution spread beyond those directly working in the mines.
