Multiple testing options and false positives can leave parents confused about blood lead level readings. We found out how the tests work and what the results really mean for a child's health.
In the '70s, Dr. Herbert Needleman made a discovery that changed how people think about lead. His work led to a ban on lead in gasoline. But as seen in Flint, Mich., lead poisoning is still a concern.
Thousands of Michigan kids who have been exposed to high levels of lead are at risk of major behavioral and cognitive problems. But early education intervention can help mitigate these effects.
The city's 10-year plan to replace 900 miles of old pipes has been met with praise and criticism — and a lawsuit from residents who say the pipe work has raised lead levels in their drinking water.
Despite the attention to lead in water, the biggest health risk to children is still from lead paint. The city of Baltimore banned lead paint way back in 1950, but children continue to be poisoned.
David Rosner and Gerald Markowitz chronicle America's poisonous relationship with lead in Lead Wars. "We've created a terribly toxic environment in all sorts of ways," Rosner says.
Even low levels of lead in children can cause learning or behavioral problems, the CDC says. But foods packed with calcium, iron and vitamin C can help reduce the absorption of lead in kids.
Lead poisoning has caused irreversible health problems for children in the city of Flint. Mayor Karen Weaver calls it a "man-made disaster" and says the situation is still dangerous.
A recent federal study found between 11 and 13 percent of children in the neighborhoods surrounding an old factory site in Philadelphia had elevated levels of lead in their blood.