In Americans, Lower Levels Of Chemicals

Lead, Secondhand Smoke Exposure Has Decreased

Associated Press
Friday, July 22, 2005; Page A03

ATLANTA, July 21 -- Americans have lower levels of lead, secondhand-smoke byproducts and other potentially dangerous substances in their bodies than they did a decade ago, according to the third government survey of exposure to environmental chemicals.

"These data help relieve worry and concern," Julie L. Gerberding, director of the Centers for Disease Control and Prevention, said Thursday.