Tooth fairy study reveals children near lead smelters are exposed to dangerous lead in the womb

Read the full story in The Conversation.

The environmental tragedy in Flint, Michigan, in which drinking water contaminated with lead raised fears of potential health effects for exposed children, revealed the failure of a regulatory system to protect residents from lead exposure.

Until 2015 the Exide Technologies lead-acid battery smelter, in southeast Los Angeles County, California, recycled approximately 11 million lead acid batteries per year while operating on temporary state permits. This violated multiple federal environmental regulations and exposed over 100,000 residents to lead and other toxic metals. The result was large-scale environmental disaster with lead contamination of the air and soil in largely Latino communities.

As an environmental scientist and epidemiologist, I sought to understand lead pollution in children growing up in this area. For my research I collaborated with local community organizations and relied on an archive of biological samples that families often save: baby teeth.

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