What is the most common source of lead exposure in children?

Lead-based paint and lead dust in older homes are the most common sources of lead exposure in children. This is particularly significant because many homes built before 1978 used lead-based paint, which can deteriorate over time, creating lead dust and chips that children may ingest or inhale. Young children, especially those under six years old, are particularly vulnerable due to their behavioral tendencies such as putting objects in their mouths and their developing bodies being more sensitive to the effects of lead.

While contaminated water supplies, industrial workplaces, and soil near roadways can also contribute to lead exposure, they are not as prevalent a source for children compared to the risks associated with lead-based paint in older housing. Urban settings, where older homes are more common, amplify these risks, making lead-based paint and dust the main focus for lead prevention and intervention efforts aimed at protecting young populations.