Published in Medical Letter on the CDC and FDA, November 12th, 2000
The study compared 535 former chemical manufacturing employees exposed to lead at work to 118 non-exposed people from the same neighborhoods.
"The effects of the average level of bone lead found in former lead workers was like five more years of aging on the brain," said Brian Schwartz, MD, of Johns Hopkins School of Hygiene and Public Health in Baltimore, Maryland.
The study participants were followed for four years, undergoing two to four...
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