While gas consumption continued to rise in the ensuing decades, lead samples in hair dropped sharply. Samples from the 1970s ...

Hair “is really a vault of information,” says Ken Smith, a demographer at the University of Utah. The study is small and limited to the greater Salt Lake City region of Utah. Researchers gathered 47 ...

Researchers investigated historic and current lead exposure by studying an unexpected part of the body: hair. In a study published yesterday in the journal PNAS, researchers analyzed hair clippings ...

Prior to the establishment of the Environmental Protection Agency in 1970, Americans lived in communities awash with lead ...

For decades, Americans were surrounded by lead from car exhaust, factories, paint, and even drinking water, often without realizing the damage it caused. By analyzing hair samples preserved across ...