Melanie Malone led a research project to identify and study contamination sites in Washington State. Then the E.P.A. canceled ...

A monthslong WDSU Investigates investigation found elevated levels of lead at several playgrounds across the region, including one New Orleans park where contamination exceeded the federal ...

Lead poisoning is often treated as if it’s a problem of the past. But its harmful legacy lingers today, particularly in the soil of urban centers across the United States. One in every two American ...

Nearly 17% of the world’s croplands are contaminated with “heavy metals”, according to a new study in Science. These contaminants – arsenic, cadmium, lead, and others – may be invisible to the eye, ...

An EPA study found most properties have lead levels below what federal regulations say is dangerous. Some scientists worry ...