"Firearm use is a relatively unchecked source of childhood exposure to lead. There's currently no way to stop the exposure from happening..."

Municipal waste incinerators' legacy of contamination could live on in urban soils, finds a study on lead in city parks.

Lead in children's blood underscores the negative health effects of policies stemming from systemic racism.

Children with more secondhand smoke exposure tend to have higher lead exposure, as well, a study finds.

New research shows that high lead levels in soil correlated with less effective nesting for mockingbirds in New Orleans.

NASCAR used leaded fuel for years after it was phased out. That gave researchers a chance to look at airborne lead's impact during pregnancy.

An expert on water sustainability explains how the lead crisis in Flint, Michigan and climate change have sparked change.

"The mental health burden of America's largest public-works environmental disaster clearly continues for many adults in Flint," says Aaron Reuben.

Black children with a history of lead exposure have lower test scores than their peers, and segregation exacerbates this effect, research finds.

As of 2015, more than 170 million Americans had clinically concerning levels of lead in their blood when they were children, likely resulting in lower IQs.