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Lead in teeth reveals a body's origin

from Medical News Today

Our teeth can reveal where we grew up, according to a new study that says as our tooth enamel develops, it locks in the isotope composition of the lead we have been exposed to in childhood. And as human activity that generates lead pollution varies around the world, so do the profiles of lead isotopes in the environment. George Kamenov, of the University of Florida, and Brian L. Gulson, of Macquarie University in Sydney, Australia, write about the discovery in the journal Science of the Total Environment. more


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