Old Toenails Tell Stories of Arsenic Exposure
In Miranda Loh's lab, toenails are telling stories. They arrive in little brown envelopes almost every week, sometimes in batches of three or four, sometimes by themselves.
Together, they're piecing together a puzzle that could affect the health of more than 1 million Arizonans.
Loh, an assistant professor of environmental health sciences at the University of Arizona Mel and Enid Zuckerman College of Public Health, is trying to measure Arizonans' exposure to arsenic over time. It's an important question because Arizona residents get more than their share of the common but poisonous chemical element.
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