An Algorithm Is Helping a Community Detect Lead Pipes

The model had shown promise in Flint before officials rebelled. Now Toledo is using it, while incorporating more public input.

One in Three Children Have Unacceptably High Lead Levels

Lead contamination has long been recognized as a health hazard, particularly for the young. But a new study asserts that the extent of the problem is far bigger than previously thought, with one in three children worldwide – about 800 million in all – threatened by unacceptably high lead levels in their body.